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Journal articles on the topic 'Mid-IR sources'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Perger, M., J. Moultaka, A. Eckart, T. Viehmann, R. Schödel, and K. Muzic. "Compact mid-IR sources east of Galactic Center source IRS5." Astronomy & Astrophysics 478, no. 1 (2007): 127–35. http://dx.doi.org/10.1051/0004-6361:20078449.

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Mountrichas, G., I. Georgantopoulos, A. Ruiz, and G. Kampylis. "Obscuration properties of mid-IR-selected AGN." Monthly Notices of the Royal Astronomical Society 491, no. 2 (2019): 1727–35. http://dx.doi.org/10.1093/mnras/stz3076.

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ABSTRACT The goal of this work is to study the obscuration properties of mid-infrared (mid-IR)-selected active galactic nuclei (AGN). For that purpose, we use Wide-field Infrared Survey Explorer (WISE) sources in the Stripe 82–XMM area to identify mid-IR AGN candidates, applying the Assef et al. criteria. Stripe 82 has optical photometry ≈2 times deeper than any single-epoch Sloan Digital Sky Survey (SDSS) region. XMM–Newton observations cover ∼26 deg2. Applying the aforementioned criteria, 1946 IR AGN are selected. ${\sim} 78{{\, \rm per\, cent}}$ have SDSS detection, while 1/3 of them are de

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Salimian Rizi, Saeed, Liam G. K. Flannigan, Alex Chiasson, Tyler Kashak, Daniel Poitras, and Chang-Qing Xu. "Efficient, Compact Mid-Infrared Sources: A Systematic Study of Intracavity Difference-Frequency Generation." Photonics 12, no. 1 (2024): 25. https://doi.org/10.3390/photonics12010025.

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This study presents a compact intracavity difference-frequency generation (DFG) source designed for mid-infrared (mid-IR) applications. By optimizing overlap between the pump and signal beams, we obtained a black-box efficiency (ηBB) of 3.4% W⁻1 and a maximum DFG output power of 63 mW at a wavelength of 3437 nm for a 50 mm long periodically poled lithium niobate (PPLN) crystal. The mid-IR laser was systematically studied for various PPLN lengths (29 mm, 40 mm, and 50 mm), demonstrating extensive tunability across a range of mid-IR wavelengths. Stability assessments over short-term (2 min) and

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Gonzalez-Solares, Eduardo A., Nicholas A. Walton, Anita M. S. Richards, and Jonathan A. Tedds. "Near-IR properties of Spitzer sources." Proceedings of the International Astronomical Union 2, no. 14 (2006): 611. http://dx.doi.org/10.1017/s1743921307012094.

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We present an analysis of the near-IR properties of galaxies and quasars detected in the mid-IR by the Spitzer Space Telescope. Using optical photometry from the Wide Field Survey and near-IR fluxes from the First Data Release of the UKIDSS (Dye et al. 2006) survey we carry out a preliminary characterization of the surface density of different samples of galaxies and their clustering properties.

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Sanghera, Jas S., L. Brandon Shaw, and Ishwar D. Aggarwal. "Chalcogenide Glass-Fiber-Based Mid-IR Sources and Applications." IEEE Journal of Selected Topics in Quantum Electronics 15, no. 1 (2009): 114–19. http://dx.doi.org/10.1109/jstqe.2008.2010245.

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6

Weidmann, Damien, Chad B. Roller, Clive Oppenheimer, Alan Fried, and Frank K. Tittel. "Carbon isotopomers measurement using mid-IR tunable laser sources." Isotopes in Environmental and Health Studies 41, no. 4 (2005): 293–302. http://dx.doi.org/10.1080/10256010500384325.

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7

Lerch, Ph, P. Dumas, T. Schilcher, et al. "Assessing noise sources at synchrotron infrared ports." Journal of Synchrotron Radiation 19, no. 1 (2011): 1–9. http://dx.doi.org/10.1107/s0909049511041884.

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Today, the vast majority of electron storage rings delivering synchrotron radiation for general user operation offer a dedicated infrared port. There is growing interest expressed by various scientific communities to exploit the mid-IR emission in microspectroscopy, as well as the far infrared (also called THz) range for spectroscopy. Compared with a thermal (laboratory-based source), IR synchrotron radiation sources offer enhanced brilliance of about two to three orders of magnitude in the mid-IR energy range, and enhanced flux and brilliance in the far-IR energy range. Synchrotron radiation

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Persi, Paolo, Mauricio Tapia, and Anna Rosa Marenzi. "Mid-IR images of methanol masers and ultracompact HII regions." Proceedings of the International Astronomical Union 2, S237 (2006): 462. http://dx.doi.org/10.1017/s1743921307002505.

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Methanol masers and UCHII regions trace massive star formation sites. We have undertaken a mid-IR survey of 17 regions containing methanol masers and UCHIIs in order to locate the young stellar sources associated with them. The images were obtained from 8.7 to 18.8 μm with the mid-IR camera CID (Salas et al. 2003) on the 2.1m telescope of the Observatorio Astronomico Nacional at San Pedro Martir (Baja California, Mexico). The images were taken with a scale 0.55″/pix and the mean PSF was 1.5-2.0″(FWHM) close to the diffraction limit. We report as an example in Fig. 1 (left panel) our 18.8μm con

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Zorin, Ivan, Jakob Kilgus, Kristina Duswald, Bernhard Lendl, Bettina Heise, and Markus Brandstetter. "Sensitivity-Enhanced Fourier Transform Mid-Infrared Spectroscopy Using a Supercontinuum Laser Source." Applied Spectroscopy 74, no. 4 (2020): 485–93. http://dx.doi.org/10.1177/0003702819893364.

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Fourier transform infrared (FT-IR) spectrometers have been the dominant technology in the field of mid-infrared (mid-IR) spectroscopy for decades. Supercontinuum laser sources operating in the mid-IR spectral region now offer the potential to enrich the field of FT-IR spectroscopy due to their distinctive properties, such as high-brightness, broadband spectral coverage and enhanced stability. In our contribution, we introduce this advanced light source as a replacement for conventional thermal emitters. Furthermore, an approach to efficient coupling of pulsed mid-IR supercontinuum sources to F

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Mescia, L., F. Smektala, and F. Prudenzano. "New Trends in Amplifiers and Sources via Chalcogenide Photonic Crystal Fibers." International Journal of Optics 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/575818.

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Rare-earth-doped chalcogenide glass fiber lasers and amplifiers have great applicative potential in many fields since they are key elements in the near and medium-infrared (mid-IR) wavelength range. In this paper, a review, even if not exhaustive, on amplification and lasing obtained by employing rare-earth-doped chalcogenide photonic crystal fibers is reported. Materials, devices, and feasible applications in the mid-IR are briefly mentioned.

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11

Koptev, Maksim Yu, Alexander E. Zaprialov, Alexey F. Kosolapov, et al. "Visible to Mid-IR Supercontinuum Generation in Cascaded PCF-Germanate Fiber Using Femtosecond Yb-Fiber Pump." Fibers 11, no. 9 (2023): 72. http://dx.doi.org/10.3390/fib11090072.

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Broadband supercontinuum (SC) fiber sources covering the mid-IR range have many significant applications, largely due to their compactness, reliability, and ease of use. However, most of the existing SC fiber sources cannot boast of either high reliability or a wide bandwidth. Thus, supercontinuum sources based on silica fibers are robust, but are not capable of generating SC in the mid-IR range. Sources based on soft glasses (tellurite, chalcogenide, etc.) generate broadband SC in the mid-IR range but are not used commercially, due to the poor mechanical and chemical characteristics of such f

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GEORGANTOPOULOS, I. "RECENT DEVELOPMENTS IN THE SEARCH FOR COMPTON-THICK AGN." International Journal of Modern Physics: Conference Series 23 (January 2013): 1–10. http://dx.doi.org/10.1142/s2010194513010994.

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I present a review of X-ray and mid-IR surveys for Compton-thick Active Galactic Nuclei (AGN). These are the most highly obscured sources having hydrogen column densities > 1.5 × 1024 cm-2. Key surveys in the local Universe are presented including the high energy SWIFT/BAT and INTEGRAL surveys, mid-IR and also optical surveys. Recently, deep X-ray surveys with Chandra and XMM-Newton have produced a number of candidate Compton-thick AGN at higher redshift primarily in the Chandra Deep Field South region. In addition, mid-IR surveys with Spitzer have helped to develop novel complementary tech

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Skinner, C. J., G. Hawkins, M. M. Meixner, J. G. Jernigan та J. F. Arens. "10μM Images of AGB Stars & Supergiants". Symposium - International Astronomical Union 155 (1993): 320. http://dx.doi.org/10.1017/s0074180900171086.

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We present mid-IR and far-IR images of a variety of AGB stars and red supergiants. The mid-IR images were all taken with the Berkeley/Livermore mid-IR array camera, which employs a 10 × 64 pixel Hughes photoconductor. All the images reported here were taken using a 10% bandpass CVF, at various wavelengths in the 10μm atmospheric window. These were supplemented by IRAS images, some constructed from survey scans, others made as Additional Observations during the pointed phase of the IRAS mission. We have so far observed 11 such sources with our mid-IR camera, and report here that only two of the

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Jaturaphagorn, Pawaphat, Papichaya Chaisakul, Nattaporn Chattham, and Pichet Limsuwan. "Investigation on optical integration between LED Mid-IR light sources and Si-based waveguides for sensing applications." Journal of Physics: Conference Series 2145, no. 1 (2021): 012056. http://dx.doi.org/10.1088/1742-6596/2145/1/012056.

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Abstract Research on mid-IR silicon-based waveguides has recently received strong interest. Particularly, this paper focuses on one of the critical issues in micron-scale photonic integrated circuits, which is to efficiently couple a mid-IR LED (light emitting diode) light source to an external micron-scale waveguide. The optical coupling scheme is crucial for the exploitation of LED light sources in waveguide-based spectroscopic sensing applications. This paper reports optical coupling scheme between an LED mid-IR light source and a silicon rich silicon nitride (SiN) waveguide that could enab

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15

Hegenbarth, R., A. Steinmann, S. Mastel, et al. "High-power femtosecond mid-IR sources for s-SNOM applications." Journal of Optics 16, no. 9 (2014): 094003. http://dx.doi.org/10.1088/2040-8978/16/9/094003.

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Pushkin, Andrey, Ekaterina Migal, Dina Suleimanova, Evgeniy Mareev, and Fedor Potemkin. "High-Power Solid-State Near- and Mid-IR Ultrafast Laser Sources for Strong-Field Science." Photonics 9, no. 2 (2022): 90. http://dx.doi.org/10.3390/photonics9020090.

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This review highlights the development of ultrafast sources in the near- and middle-IR range, developed in the laboratory of Nonlinear Optics and Superstrong Laser Fields at Lomonosov Moscow State University. The design of laser systems is based on a powerful ultrafast Cr:Forsterite system as a front-end and the subsequent nonlinear conversion of radiation into the mid-IR, THz, and UV spectral range. Various schemes of optical parametric amplifiers based on oxide and non-oxide crystals pumped with Cr:Forsterite laser can receive pulses in the range of 4–6 µm with gigawatt peak power. Alternati

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Sarajedini, Vicki L. "Using AGN Variability Surveys to explore the AGN-Galaxy Connection." Proceedings of the International Astronomical Union 9, S304 (2013): 385–90. http://dx.doi.org/10.1017/s1743921314004372.

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AbstractVariability is a successful technique used to identify active galactic nuclei in both ground and space-based galaxy surveys. Optical variability surveys using HST have uncovered a number of AGN in deep extragalactic fields extending to z ~ 3 and probing intrinsically faint sources. Mid-IR variability surveys using Spitzer have identified a significant number of AGN and are particularly sensitive to obscured sources. Many variability-detected AGN are not strong X-ray sources or lack the characteristic colors of AGN and would thus be unidentified using other selection techniques. In this

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Conti, Peter S., Jeonghee Rho, James Furness, and Paul A. Crowther. "UCHII Regions and Newly Born O-type Stars." Proceedings of the International Astronomical Union 3, S250 (2007): 285–92. http://dx.doi.org/10.1017/s1743921308020607.

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AbstractWe have obtainedSpitzerIRAC and MIPS mid-IR images of a sample of 43 radio selected UCHII region sources to ascertain (a) whether the newly born O stars within are found with other stars in their birthplaces and (b) the nature of the surroundings. 37 of the sources appear to be in small clusters, and 33 are found in connection with other hot star formation activity. Thus, for the most part, O stars are not born in isolation. Here we give examples of the mid-IR images of the various types of UCHII regions.

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19

Way, Brandyn, Ravinder K. Jain, and Mani Hossein-Zadeh. "High-Q microresonators for mid-IR light sources and molecular sensors." Optics Letters 37, no. 21 (2012): 4389. http://dx.doi.org/10.1364/ol.37.004389.

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Cancio, P., S. Bartalini, S. Borri, et al. "Frequency-comb-referenced mid-IR sources for next-generation environmental sensors." Applied Physics B 102, no. 2 (2010): 255–69. http://dx.doi.org/10.1007/s00340-010-4216-2.

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21

Inami, Hanae, Jason Surace, Lee Armus, et al. "GOALS-JWST: Unveiling Dusty Compact Sources in the Merging Galaxy IIZw096." Astrophysical Journal Letters 940, no. 1 (2022): L6. http://dx.doi.org/10.3847/2041-8213/ac9389.

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Abstract We have used the Mid-InfraRed Instrument (MIRI) on the James Webb Space Telescope (JWST) to obtain the first spatially resolved, mid-infrared images of IIZw096, a merging luminous infrared galaxy (LIRG) at z = 0.036. Previous observations with the Spitzer Space Telescope suggested that the vast majority of the total IR luminosity (L IR) of the system originated from a small region outside of the two merging nuclei. New observations with JWST/MIRI now allow an accurate measurement of the location and luminosity density of the source that is responsible for the bulk of the IR emission.

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Lin, Hongtao, Zhengqian Luo, Tian Gu, et al. "Mid-infrared integrated photonics on silicon: a perspective." Nanophotonics 7, no. 2 (2017): 393–420. http://dx.doi.org/10.1515/nanoph-2017-0085.

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AbstractThe emergence of silicon photonics over the past two decades has established silicon as a preferred substrate platform for photonic integration. While most silicon-based photonic components have so far been realized in the near-infrared (near-IR) telecommunication bands, the mid-infrared (mid-IR, 2–20-μm wavelength) band presents a significant growth opportunity for integrated photonics. In this review, we offer our perspective on the burgeoning field of mid-IR integrated photonics on silicon. A comprehensive survey on the state-of-the-art of key photonic devices such as waveguides, li

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Vorontsov, K. V., S. G. Garanin, N. A. Egorov, et al. "Nonlinear frequency conversion of a Ho :YAG laser beam." Quantum Electronics 52, no. 3 (2022): 262–68. http://dx.doi.org/10.1070/qel18007.

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Abstract We report the results of experiments on frequency conversion of a Ho : YAG laser beam (wavelength λ ∼ 2.1 μm) into the near-, mid-, and far-IR regions, aimed at expanding the spectral composition of compact multispectral sources of coherent radiation. The experimentally found laser conversion efficiency into the second harmonic reaches 32 % and 54 % in the cw and repetitively pulsed regimes, respectively. The parametric conversion efficiency into the mid-IR range (λ = 3.5 – 5.0 μm) reaches 55 %, while for the far-IR range (λ = 8 – 8.2 μm) it turns out to be 10.5 %.

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Iani, Edoardo, Karina I. Caputi, Pierluigi Rinaldi та Vasily I. Kokorev. "A First Look into the Nature of JWST/MIRI 7.7 μm Sources from SMACS 0723". Astrophysical Journal Letters 940, № 1 (2022): L24. http://dx.doi.org/10.3847/2041-8213/aca014.

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Abstract Until now, our knowledge of the extragalactic universe at mid-infrared (mid-IR) wavelengths (>5 μm) was limited to rare active galactic nuclei and the brightest normal galaxies up to z ∼ 3. The advent of JWST with its Mid-Infrared Instrument (MIRI) will revolutionize the ability of the mid-IR regime as a key wavelength domain to probe the high-z universe. In this work we present a first study of JWST MIRI 7.7 μm sources selected with >3σ significance from the lensing cluster field SMACS J0723.3-7327. We model their spectral energy distribution (SED) fitting with 13 JWST and Hubb

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Stallard, Brian R. "Near-IR versus Mid-IR: Separability of Three Classes of Organic Compounds." Applied Spectroscopy 51, no. 5 (1997): 625–30. http://dx.doi.org/10.1366/0003702971941025.

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Recently there has been a surge of interest in spectroscopic sensors operating in the near-IR, although it is recognized that the mid-IR contains more spectral information. The general question addressed in this paper is, How much specificity is lost in choosing the near-IR over the mid-IR for sensor applications? The example considered is the separability among three classes of organic compounds: alkanes, alcohols, and ketones/aldehydes. We use spectra from two sources: the Hummel polymer library (mid-IR) and the library of Buback and Vögele (near-IR). This is the first paper on class separab

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Peña-Herazo, H. A., F. Massaro, V. Chavushyan, N. Masetti, A. Paggi, and A. Capetti. "Turin-SyCAT: A multifrequency catalog of Seyfert galaxies." Astronomy & Astrophysics 659 (March 2022): A32. http://dx.doi.org/10.1051/0004-6361/202038752.

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Aims. We present the first release of Turin-SyCAT, a multifrequency catalog of Seyfert galaxies. Methods. We selected Seyfert galaxies considering criteria based on radio, infrared, and optical properties and starting from sources belonging to hard X-ray catalogs and surveys. We visually inspected optical spectra available for all selected sources. We adopted homogeneous and stringent criteria in the source selection aiming at reducing the possible contamination from other source classes. Results. Our final catalog includes 351 Seyfert galaxies distinguished in 233 type 1 and 118 type 2. Type

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Singh, S. P., V. Mishra, P. K. Datta, and Shailendra K. Varshney. "Dispersion Engineered Capillary-Assisted Chalcogenide Optical Fiber Based Mid-IR Parametric Sources." Journal of Lightwave Technology 33, no. 1 (2015): 55–61. http://dx.doi.org/10.1109/jlt.2014.2371471.

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Kirkpatrick, Allison, Guang Yang, Aurélien Le Bail, et al. "CEERS Key Paper. VII. JWST/MIRI Reveals a Faint Population of Galaxies at Cosmic Noon Unseen by Spitzer." Astrophysical Journal Letters 959, no. 1 (2023): L7. http://dx.doi.org/10.3847/2041-8213/ad0b14.

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Abstract The Cosmic Evolution Early Release Science program observed the Extended Groth Strip (EGS) with the Mid-Infrared Instrument (MIRI) on the James Webb Space Telescope (JWST) in 2022. In this paper, we discuss the four MIRI pointings that observed with longer-wavelength filters, including F770W, F1000W, F1280W, F1500W, F1800W, and F2100W. We compare the MIRI galaxies with the Spitzer/MIPS 24 μm population in the EGS field. We find that MIRI can observe an order of magnitude deeper than MIPS in significantly shorter integration times, attributable to JWST's much larger aperture and MIRI’s

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Stern, Daniel. "Multi-Wavelength AGN from Ground and Space, from Far-IR to High-Energy." Proceedings of the International Astronomical Union 9, S304 (2013): 187. http://dx.doi.org/10.1017/s174392131400372x.

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AbstractI will discuss multi-wavelength AGN studies, with a focus on mid-IR and radio selected obscured AGN. Obscured AGN, which are robustly identified across the full sky by WISE, are the dominant AGN population. I will discuss several aspects of the mid-IR obscured AGN population, ranging from detailed studies of extreme sources, the so-called WISE ultraluminous ‘hot dust-obscured galaxy’ or ‘hot DOG’ sample, as well as more general studies comparing obscured and unobscured AGN identified in wide-area surveys.

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Kuo, C. Y., C. Y. Tai, A. Constantin, et al. "The Detection of H₂O Maser Emission from Mid-IR Red Galaxies." Astrophysical Journal 983, no. 2 (2025): 96. https://doi.org/10.3847/1538-4357/adbe3a.

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Abstract We report the detection of H2O maser emission in 4 out of 77 (5.2%) mid-IR red galaxies that meet the color criteria of W1 − W2 > 0.5 and W1 − W4 > 7 and are classified as Type 2 active galactic nuclei (AGNs) based on optical, near-IR, and mid-IR spectral energy distribution (SED) fitting. Here, W1, W2, and W4 represent the IR magnitudes at 3.4, 4.6, and 22 μm, respectively, as measured by the Wide-field Infrared Survey Explorer. Three of the four newly identified maser galaxies are classified as either Seyfert 2 or low-ionization nuclear emission-line region systems, but none a

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Marton, G., L. V. Tóth, L. G. Balázs, et al. "A selection of AKARI FIS BSC extragalactic objects." Proceedings of the International Astronomical Union 11, S319 (2015): 101. http://dx.doi.org/10.1017/s1743921315010297.

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AbstractThe point sources in the Bright Source Catalogue (BSC) of the AKARI Far–Infrared Surveyor (FIS) were classified based on their far–IR and mid–IR fluxes and colours using Quadratic Discriminant Analysis method (QDA) and Support Vector Machines (SVM). The reliability of our results show that we can successfully separate galactic and extragalactic AKARI point sources in the multidimensional space of fluxes and colours. However, differentiating among the extragalactic sub–types needs further information.

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Ramos-Larios, G., M. A. Guerrero, H. Mata, et al. "Spitzer IRS spectroscopy of planetary nebulae." Proceedings of the International Astronomical Union 12, S323 (2016): 335–36. http://dx.doi.org/10.1017/s1743921317000898.

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AbstractWe present Spitzer Space Telescope archival mid-infrared (mid-IR) spectroscopy of a sample of eleven planetary nebulae (PNe). The observations, acquired with the Spitzer Infrared Spectrograph (IRS), cover the spectral range 5.2-14.5 μm that includes the H2 0-0 S(2) to S(7) rotational emission lines. This wavelength coverage has allowed us to derive the Boltzmann distribution and calculate the H2 rotational excitation temperature (Tex). The derived excitation temperatures have consistent values ≃ 900 ±70 K for different sources despite their different structural components. We also repo

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Bailleul, Damien, Esteban Serrano, David Le Coq, et al. "Mid-infrared supercontinuum source and evanescent wave spectroscopy based on multiple tapered sections of a singleoptical chalcogenide glass rod." EPJ Web of Conferences 287 (2023): 10010. http://dx.doi.org/10.1051/epjconf/202328710010.

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Mid-infrared supercontinuum sources are particularly important for identifying and characterizing molecules and materials through spectroscopy, thus enabling key applications. We here demonstrate the possibility of combining both mid-IR supercontinuum generation and evanescent wave spectroscopy in a single chalcogenide fiber device by means of heat-and-draw processes to manage linear and nonlinear wave-guiding properties.

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Tsibidis, George D., and Emmanuel Stratakis. "Ionization dynamics and damage conditions in fused silica irradiated with mid-infrared femtosecond pulses." Applied Physics Letters 122, no. 4 (2023): 043501. http://dx.doi.org/10.1063/5.0130934.

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The employment of ultrashort laser sources at the mid-infrared (mid-IR) spectral region for dielectrics is expected to open innovative routes for laser patterning and a wealth of exciting applications in optics and photonics. To elucidate the material response to irradiation with mid-IR laser sources, a consistent analysis of the interaction of long wavelength femtosecond pulses with dielectric materials is presented. The influence of the pulse duration is particularly emphasized in specifying the laser parameters for which photoionization and impact ionization are important. Simulation result

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López, Fernando M., Carlos Guillermo Giménez de Castro, Cristina H. Mandrini, et al. "A solar flare driven by thermal conduction observed in mid-infrared." Astronomy & Astrophysics 657 (January 2022): A51. http://dx.doi.org/10.1051/0004-6361/202141967.

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Context. The mid-infrared (mid-IR) range has been mostly unexplored for the investigation of solar flares. It is only recently that new mid-IR flare observations have begun opening a new window into the response and evolution of the solar chromosphere. These new observations have been mostly performed by the AR30T and BR30T telescopes that are operating in Argentina and Brazil, respectively. Aims. We present the analysis of SOL2019-05-15T19:24, a GOES class C2.0 solar flare observed at 30 THz (10 μm) by the ground-based telescope AR30T. Our aim is to characterize the evolution of the flaring a

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Thakkar, Pooja, Clément Fleury, Gerald Stocker, et al. "Coupled Strip-Array Waveguides for Integrated Mid-IR Gas Sensing." Photonics 10, no. 1 (2023): 55. http://dx.doi.org/10.3390/photonics10010055.

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Non-dispersive infrared (NDIR) absorption spectroscopy is a widespread approach to gas sensing due to its selectivity and conceptual simplicity. One of the main challenges towards the development of fully integrated NDIR sensors is the design and fabrication of microstructures, typically waveguides, that can combine high sensitivity with the ease of integrability of other sensor elements (sources, filters, detectors). Here, we investigate theoretically and experimentally a class of coupled strip-array (CSA) waveguides realized on a SiO2/Si3N4 platform with mass semiconductor fabrication proces

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ISHII, Nobuhisa, Keisuke KANESHIMA, Peiyu XIA,, Nariyuki SAITO, Teruto KANAI, and Jiro ITATANI. "Polarization Analysis of High Harmonic Generation in Solids Using Intense Mid-IR Sources." Review of Laser Engineering 48, no. 4 (2020): 168. http://dx.doi.org/10.2184/lsj.48.4_168.

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MANDAL, KRISHNA C., SUNG H. KANG, MICHAEL CHOI, and R. DAVID RAUH. "RARE-EARTH DOPED POTASSIUM LEAD BROMIDE MID-IR LASER SOURCES FOR STANDOFF DETECTION." International Journal of High Speed Electronics and Systems 18, no. 03 (2008): 735–45. http://dx.doi.org/10.1142/s0129156408005709.

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The single crystal growth of KPb 2 Br 5 by vertical Bridgman technique using in-house processed zone refined PbBr 2 and KBr with rare-earth terbium doping has been studied. The grown moisture resistant crystals (1.5 cm diameter and 10 cm length) have shown high promise for low phonon energy room temperature solid-state laser applications in the longer side of mid-IR (4-15 µm) due to their high storage lifetimes, wide tunability, and excellent optical quality. The processed crystals are highly transparent ( T = ≥80%) in the 0.4-25 µm spectral region. Repeated melting-freezing cycles during diff

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Kundys, Dmytro, Francesco Graffitti, Richard A. McCracken, Alessandro Fedrizzi, and Bohdan Kundys. "Numerical Study of Reconfigurable Mid‐IR Single Photon Sources Based on Functional Ferroelectrics." Advanced Quantum Technologies 3, no. 3 (2020): 1900092. http://dx.doi.org/10.1002/qute.201900092.

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Pushkin, Andrey, and Fedor Potemkin. "Refining the Performance of mid-IR CPA Laser Systems Based on Fe-Doped Chalcogenides for Nonlinear Photonics." Photonics 10, no. 12 (2023): 1375. http://dx.doi.org/10.3390/photonics10121375.

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The chirped pulse amplification (CPA) systems based on transition-metal-ion-doped chalcogenide crystals are promising powerful ultrafast laser sources providing access to sub-TW laser pulses in the mid-IR region, which are highly relevant for essential scientific and technological tasks, including high-field physics and attosecond science. The only way to obtain high-peak power few-cycle pulses is through efficient laser amplification, maintaining the gain bandwidth ultrabroad. In this paper, we report on the approaches for mid-IR broadband laser pulse energy scaling and the broadening of the

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Takagi, Toshinobu, Hideo Matsuhara, Takehiko Wada, and Youichi Ohyama. "Photometric studies of PAH emission from distant infrared galaxies." Proceedings of the International Astronomical Union 7, S284 (2011): 456–59. http://dx.doi.org/10.1017/s1743921312009611.

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AbstractUsing extensive mid-IR datasets from AKARI, i.e. 9 band photometry covering the wavelength range from 2 μm to 24 μm and the unbiased spectroscopic survey for sources with Sν (9μm)>0.3 mJy, we investigated the PAHs emission features in distant starburst galaxies. PAH-selected galaxies, selected with an extremely red mid-IR colour due to PAHs, are found to have a peculiar rest-frame 11-to-8 μm flux ratio, which is systematically smaller than nearby starburst/AGN spectral templates. This may indicate a systematic difference in the physical condition of the ISM between nearby and distan

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Marris-Morini, Delphine, Vladyslav Vakarin, Joan Manel Ramirez, et al. "Germanium-based integrated photonics from near- to mid-infrared applications." Nanophotonics 7, no. 11 (2018): 1781–93. http://dx.doi.org/10.1515/nanoph-2018-0113.

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AbstractGermanium (Ge) has played a key role in silicon photonics as an enabling material for datacom applications. Indeed, the unique properties of Ge have been leveraged to develop high performance integrated photodectors, which are now mature devices. Ge is also very useful for the achievement of compact modulators and monolithically integrated laser sources on silicon. Interestingly, research efforts in these domains also put forward the current revolution of mid-IR photonics. Ge and Ge-based alloys also present strong advantages for mid-infrared photonic platform such as the extension of

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Kostyukova, Nadezhda, Evgenii Erushin, Andrey Boyko, Galina Shevyrdyaeva, and Dmitry Badikov. "Barium Chalcogenide Crystals: A Review." Photonics 11, no. 3 (2024): 281. http://dx.doi.org/10.3390/photonics11030281.

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In recent decades, new nonlinear optical materials have been actively developed to create coherent tunable light sources in the mid-infrared (mid-IR) part of the spectrum used in a variety of scientific fields. In the present review, the main attention is focused on barium chalcogenide crystals, including their linear and nonlinear optical properties, laser-induced damage threshold (LIDT), and frequency down-conversion.

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Kim, Seong Jin, Nagisa Oi, Tomotsugu Goto, et al. "Identification of AKARI infrared sources by the Deep HSC Optical Survey: construction of a new band-merged catalogue in the North Ecliptic Pole Wide field." Monthly Notices of the Royal Astronomical Society 500, no. 3 (2020): 4078–94. http://dx.doi.org/10.1093/mnras/staa3359.

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ABSTRACT The North Ecliptic Pole field is a natural deep-field location for many satellite observations. It has been targeted many times since it was surveyed by the AKARI space telescope with its unique wavelength coverage from the near- to mid-infrared (mid-IR). Many follow-up observations have been carried out, making this field one of the most frequently observed areas with a variety of facilities, accumulating abundant panchromatic data from the X-ray to the radio wavelength range. Recently, a deep optical survey with the Hyper Suprime-Cam (HSC) at the Subaru telescope covered the NEP-Wid

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Csanaková, Bianka, Ondřej Novák, Lukáš Roškot, et al. "Double-pass optical parametric generator pumped by Yb thin-disk laser for efficient 1.4–2.9 µm mid-IR radiation generation." Laser Physics 33, no. 2 (2023): 025005. http://dx.doi.org/10.1088/1555-6611/acb353.

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Abstract Many different fields benefit from the usage of light sources emitting in the mid-infrared wavelength range (2–10 µm). A rising need for precise and fast sources in the mid infrared (mid-IR) is reflected in the development of a high-power, picosecond mid-IR source capable of generation at high repetition rates. In this work, we present the optimization of an optical parametric generator, pumped by a 3 W portion of total power of the Yb:YAG thin-disk laser (1.3 ps, 90 kHz, 90 W) by comparing a single-pass and double-pass arrangement output parameters in terms of output power dependence

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Pierściński, Kamil, Dorota Pierścińska, Grzegorz Sobczak, et al. "Monolithic, Optically Coupled, Multi-Section Mid-IR Quantum Cascade Lasers." Photonics 8, no. 12 (2021): 583. http://dx.doi.org/10.3390/photonics8120583.

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Mid-infrared (mid-IR λ ≈ 3–12 μm), single-mode-emission Quantum Cascade Lasers (QCLs) are of significant interest for a wide range of applications, especially as the laser sources are chosen for laser absorption spectroscopy. In this work, we present the design, fabrication and characterization of multi-section, coupled-cavity, mid-IR quantum cascade lasers. The purpose of this work is to propose a design modification for a coupled-cavity device, yielding a single-mode emission with a longer range of continuous tuning during the pulse, in contrast to a 2-section device. This effect was obtaine

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Rivera, Nicholas, Gilles Rosolen, John D. Joannopoulos, Ido Kaminer, and Marin Soljačić. "Making two-photon processes dominate one-photon processes using mid-IR phonon polaritons." Proceedings of the National Academy of Sciences 114, no. 52 (2017): 13607–12. http://dx.doi.org/10.1073/pnas.1713538114.

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Phonon polaritons are guided hybrid modes of photons and optical phonons that can propagate on the surface of a polar dielectric. In this work, we show that the precise combination of confinement and bandwidth offered by phonon polaritons allows for the ability to create highly efficient sources of polariton pairs in the mid-IR/terahertz frequency ranges. Specifically, these polar dielectrics can cause emitters to preferentially decay by the emission of pairs of phonon polaritons, instead of the previously dominant single-photon emission. We show that such two-photon emission processes can occ

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Kim, Soocheol, Soyoung Park, and Kangbok Lee. "Method for Aerosol Particle and Gas Analyses based on Dual-channel Mid-infrared Sensor." International Journal of Fire Science and Engineering 36, no. 1 (2022): 1–6. http://dx.doi.org/10.7731/kifse.3d1404d5.

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Although researchers are actively investigating methods to improve fire detector performance, few studies have investigated fire detectors that detect the type of fire. Fire type detection serves a key role in quickly extinguishing fires and preventing their spread. We present a non-dispersive infrared (NDIR)-based dual-channel mid-infrared (mid-IR) method that can detect and classify aerosol particles and gases. 4.2 μm and 4.7 μm mid-IR light emitting diodes (LEDs) light sources with strong absorption for CO2 and CO are employed. and, and the mid-IR LEDs are modulated with 900 Hz and 1,000 Hz

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Seymour, Nick, D. Stern, and C. De Breuck. "The Stellar Mass Distribution of Powerful Radio Galaxies Across 1 < z < 5.2." Proceedings of the International Astronomical Union 2, S235 (2006): 427. http://dx.doi.org/10.1017/s1743921306010544.

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AbstractWe present the results of a comprehensive Spitzer survey of 70 radio galaxies across 1 < z < 5.2. Using IRAC (3.6–8.0μm), IRS (16 μm) and MIPS (24–160 μm) imaging, we decompose the rest-frame optical to infrared spectral energy distributions into stellar, AGN, and dust components and determine the contribution of host galaxy stellar emission at rest-frame 1.6 μm (H-band). We find that the fraction of emitted light at rest-frame 1.6 μm from stars is >80% for over half the high redshift radio galaxies. The other radio galaxies have 1.6 μm stellar fractions spanning the range 20–

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Kolker, D. B., I. V. Sherstov, A. A. Boyko, et al. "Tunable mid-infrared laser sources for trace-gas analysis." Journal of Physics: Conference Series 2067, no. 1 (2021): 012013. http://dx.doi.org/10.1088/1742-6596/2067/1/012013.

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Abstract We demonstrate advanced experimental approaches to photoacoustic gas detection with tunable mid-infrared (mid-IR) laser sources of different types. A gas analyzer for registration of various gas components based on a tunable narrow-linewidth optical parametric oscillator (OPO) was designed and investigated. Using this OPO, the possibility of measuring the trace concentration (∼2÷3 ppm) of methane (CH4) in air was experimentally shown. The gas detection capability was enhanced by introducing injection seeding into the OPO. Another gas analyzer was based on a quantum cascade laser (tuna

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