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Relevant bibliographies by topics / AlSb QCLs

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Academic literature on the topic 'AlSb QCLs'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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Journal articles on the topic "AlSb QCLs"

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Nguyen Van, Hoang, Zeineb Loghmari, Hadrien Philip, Michael Bahriz, Alexei Baranov та Roland Teissier. "Long Wavelength (λ > 17 µm) Distributed Feedback Quantum Cascade Lasers Operating in a Continuous Wave at Room Temperature". Photonics 6, № 1 (2019): 31. http://dx.doi.org/10.3390/photonics6010031.

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The extension of the available spectral range covered by quantum cascade lasers (QCL) would allow one to address new molecular spectroscopy applications, in particular in the long wavelength domain of the mid-infrared. We report in this paper the realization of distributed feedback (DFB) QCLs, made of InAs and AlSb, that demonstrated a continuous wave (CW) and a single mode emission at a wavelength of 17.7 µm, with output powers in the mW range. This is the longest wavelength for DFB QCLs, and for any QCLs or semiconductor lasers in general, operating in a CW at room temperature.

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Sun, Rui-Xuan, Shu-Man Liu, Zhe-Yu Song та ін. "13 μm emission InAs/AlSb quantum cascade lasers with high slope efficiency and peak output power enabled by diagonal transition design". AIP Advances 14, № 11 (2024). http://dx.doi.org/10.1063/5.0237315.

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Long wavelength InAs/AlSb quantum cascade lasers (QCLs) emitting at 13 μm, based on a diagonal transition scheme design through band structure engineering, have been grown and fabricated. This band structure engineering focuses on enhancing transition efficiency and suppressing carrier leakage. Our 3-mm-long, 25-μm-wide InAs/AlSb QCL has achieved a slope efficiency of 210 mW/A and a maximum peak power of 515 mW, despite encountering a substantial waveguide loss of 27 cm−1 and a relatively high threshold of 4.8 kA/cm2, due to the elevated residual doping level. Our InAs/AlSb QCL devices have de

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Giparakis, Miriam, Andreas Windischhofer, Stefania Isceri, et al. "Design and performance of GaSb-based quantum cascade detectors." Nanophotonics, January 18, 2024. http://dx.doi.org/10.1515/nanoph-2023-0702.

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Abstract InAs/AlSb quantum cascade detectors (QCDs) grown strain-balanced on GaSb substrates are presented. This material system offers intrinsic performance-improving properties, like a low effective electron mass of the well material of 0.026 m 0, enhancing the optical transition strength, and a high conduction band offset of 2.28 eV, reducing the noise and allowing for high optical transition energies. InAs and AlSb strain balance each other on GaSb with an InAs:AlSb ratio of 0.96:1. To regain the freedom of a lattice-matched material system regarding the optimization of a QCD design, submo

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You Ming-Hui, Li Xue, Li Shi-jun, and Liu Guo-Jun. "Growth of Lattice Matched InAs/AlSb Superlattices by Molecular Beam Epitaxy." Acta Physica Sinica, 2022, 0. http://dx.doi.org/10.7498/aps.72.20221383.

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The InAs/GaSb superlattices (SPLs) was an important component of Quantum Cascade Laser (QCL) and Interband Cascade Laser (ICL). In particular, the upper and lower SPLs waveguide layers and active regions of the ICL were alternately grown from a large number of ultra-film epitaxial layers (nm) by Molecular Beam Epitaxy(MBE). Subtle lattice mismatch may directly lead to the deterioration of material crystal quality, and the thickness, which the composition change of each layer will strongly affect the structural performance of device materials. The optimal growth temperature of InAs/GaSb SPLs we

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Dissertations / Theses on the topic "AlSb QCLs"

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Kinjalk, Kumar. "Long Wavelength QCLs for BTEX and Propane detection through QEPAS." Electronic Thesis or Diss., Université de Montpellier (2022-....), 2023. http://www.theses.fr/2023UMONS079.

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La détection sensible et sélective des BTEX et du propane présente un grand intérêt pour les applications environnementales, biomédicales et pétrochimiques. Cependant, la détection de ces composés est compliquée à cause des interférences potentielles, soit entre eux, soit avec d'autres composés. Ce problème peut être résolu par la spectroscopie laser à de grandes longueurs d'onde (13-15 µm), où ils présentent des caractéristiques d'absorption très discriminantes. Pourtant, cette gamme spectrale est pratiquement inexplorée en raison du manque de sources appropriées. Cette thèse vise à combler c

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Devenson, Jan. "Trumpabangiai InAs/AlSb kvantiniai kaskadiniai lazeriai." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101102_153721-11993.

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Disertaciniame darbe nagrinėjamas InAs/AlSb medžiagų sistemos panaudojimas trumpabangių tarppajuostinių lazerių kūrimui. Buvo išplėtota molekulinių pluoštelių epitaksijos technologija, leidžianti auginti daugiaperiodines neįtemptas InAs/AlSb heterosandūras su mažu 1-2 atominių sluoksnių šiurkštumu. Buvo parodyta, jog InAs/AlSb medžiagų sistema yra tinkama kurti trumpabangiams kvantiniams kaskadiniams lazeriams, veikiantiems žemiau 4 µm bangos ilgio ribos. Buvo ištirtas kvantinių kaskadinių lazerių, turinčių tiek plazmoninius bangolaidžius su stipriai legiruotais InAs apdariniais sluoksniais, t

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Devenson, Jan. "InAs/AlSb short wavelength quantum cascade lasers." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101102_153710-37964.

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Application of InAs/AlSb materials system for development of short-wavelength quantum cascade lasers is explored. Molecular beam epitaxy (MBE) technology allowing to grow multiperiodical unstrained InAs/AlSb heterostructures with roughness of 1-2 monolayers is developed. It is demonstrated that InAs/AlSb materials system is well-suitable for development of short-wavelength quantum cascade lasers operating below 4 µm wavelength. Lasers containing plasmon-enhanced waveguides as well as the short period InAs/AlSb superlattices as waveguides were designed, MBE-grown and studied. The effect of wave

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Books on the topic "AlSb QCLs"

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Marovich, Robert M. Postwar Gospel Quartets. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252039102.003.0012.

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This chapter focuses on the rise of Chicago's gospel quartets, hailed as the “rock stars of religious music” by music historian Al Young, after World War II. The postwar migration to Chicago coincided with the rise to national prominence of the male gospel quartet. Quartets such as the Soul Stirrers, the Pilgrim Travelers, and the Harmonizing Four were packing auditoriums with exciting live performances, singing on hundreds of radio stations, and sellling records by the tens of thousands. This chapter first takes a look at the gospel music of the Soul Stirrers before turning to churches and ve

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Book chapters on the topic "AlSb QCLs"

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Igor, Vurgaftman. "Quantum Cascade Lasers." In Bands and Photons in III-V Semiconductor Quantum Structures. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198767275.003.0013.

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This chapter describes the most commonly used approaches for computing the band structure of active materials with intersubband optical transitions. The physics of quantum cascade lasers (QCLs) is discussed in detail, including the mechanisms that limit the threshold current density, threshold voltage, wall-plug efficiency, and temperature sensitivity of state-of-the-art devices. The important roles of phonon and interface roughness scattering in determining threshold are emphasized. The chapter also compares the performance of QCLs to other mid-IR lasers in considerable detail and makes some

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Mahdi, Fahad Parvez, Pandian Vasant, Vish Kallimani, M. Abdullah-Al-Wadud, and Junzo Watada. "Quantum-Inspired Computational Intelligence for Economic Emission Dispatch Problem." In Handbook of Research on Soft Computing and Nature-Inspired Algorithms. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-2128-0.ch015.

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Economic emission dispatch (EED) problems are one of the most crucial problems in power systems. Growing energy demand, limited reserves of fossil fuel and global warming make this topic into the center of discussion and research. In this chapter, we will discuss the use and scope of different quantum inspired computational intelligence (QCI) methods for solving EED problems. We will evaluate each previously used QCI methods for EED problem and discuss their superiority and credibility against other methods. We will also discuss the potentiality of using other quantum inspired CI methods like

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Mahdi, Fahad Parvez, Pandian Vasant, Vish Kallimani, M. Abdullah-Al-Wadud, and Junzo Watada. "Quantum-Inspired Computational Intelligence for Economic Emission Dispatch Problem." In Foreign Direct Investments. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2448-0.ch027.

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Economic emission dispatch (EED) problems are one of the most crucial problems in power systems. Growing energy demand, limited reserves of fossil fuel and global warming make this topic into the center of discussion and research. In this chapter, we will discuss the use and scope of different quantum inspired computational intelligence (QCI) methods for solving EED problems. We will evaluate each previously used QCI methods for EED problem and discuss their superiority and credibility against other methods. We will also discuss the potentiality of using other quantum inspired CI methods like

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Flarend, Alice, and Bob Hilborn. "Introduction." In Quantum Computing: From Alice to Bob. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780192857972.003.0001.

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We meet our hosts, Alice and Bob, and an undergraduate student, Cardy. Alice and Bob tell Cardy why QC is “the next big thing.” They give a brief introduction to quantum information science (QIS) and its relation to quantum computing (QC). They also provide an overview of the rest of the book and how the book should be used to come to grips with quantum ideas that allow QCs to do things unimaginable for traditional computers. Alice and Bob emphasize that with perseverance everyone can understand the fundamentals of QC and how quantum physics enables entirely new ways of thinking about computat

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Conference papers on the topic "AlSb QCLs"

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Lin°, Tsung-Tse, Wataru Terashima, and Hideki Hirayama. "250 mW output power operation of GaAs-based THz quantum cascade lasers." In JSAP-OSA Joint Symposia. Optica Publishing Group, 2017. http://dx.doi.org/10.1364/jsap.2017.7a_a409_6.

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THz quantum cascade lasers (QCLs) [1,2] are promising high output power semiconductor THz sources to over Watt order peak power [3] with narrow bandwidth. It is still quite limited for the THz applications caused by the large cryogenic system and low duty cycle with low output power at high operation temperature. Output power is one of the most critical parameters for real applications. We demonstrated a 77 K liquid nitrogen Dewar condenser as a compromised compact portable THz source unit with our fabricated QCLs. They showed a stable few ten mW peak power with sub mW average power operation.

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Chemla, Daniel S. "Trends in Ultrafast Physics of Quantum Confined Systems." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/up.1994.tue.1.

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In the last decade, quantum confined semiconductor structures (QCSS) have attracted much attention because of their novel properties and their potential for electronic and photonic applications [1]. Quantum size effects appear in a semiconductor structure when one of its dimensions is in the range 10Å <L<500 Å. In these materials the typical values of group and phase velocities of elementary excitations are such that the corresponding times are in the range 10fs<t<500fs. Therefore reduced dimensionality also implies ultrafast dynamics. In this talk we review the most significant re

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Bernreiter, Michael, Jan Maly, and Stefan Woltran. "Choice Logics and Their Computational Properties." In Thirtieth International Joint Conference on Artificial Intelligence {IJCAI-21}. International Joint Conferences on Artificial Intelligence Organization, 2021. http://dx.doi.org/10.24963/ijcai.2021/247.

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Qualitative Choice Logic (QCL) and Conjunctive Choice Logic (CCL) are formalisms for preference handling, with especially QCL being well established in the field of AI. So far, analyses of these logics need to be done on a case-by-case basis, albeit they share several common features. This calls for a more general choice logic framework, with QCL and CCL as well as some of their derivatives being particular instantiations. We provide such a framework, which allows us, on the one hand, to easily define new choice logics and, on the other hand, to examine properties of different choice logics in

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Kondo, Yosuke, Shota Hamauchi, Yoshihito Kowada, Kyoji Shibuya, and Yoshinori Otsuki. "Development Of On-board Multi-component Gas Analyzer Toward Euro 7." In 2023 JSAE/SAE Powertrains, Energy and Lubricants International Meeting. Society of Automotive Engineers of Japan, 2023. http://dx.doi.org/10.4271/2023-32-0026.

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<div class="section abstract"><div class="htmlview paragraph">The Euro 7 emission regulations currently under consideration by the EU will adopt on-road emissions test as the main Type Approval procedure, and it has been proposed that the number of gas components to be measured will be increased. Therefore, the Portable Emissions Measurement System (PEMS) used for on- road emissions testing must be able to simultaneously measure more components with higher precision while maintaining the same compact and lightweight structure as in the existing PEMS. The authors have applied a rela

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AlOudah, Yahya. "Waste Management Control by Applying Novel Method for HPLC Technique to Replace SKALAR Cadmium Reduction Method for Nitrate and Nitrite in Water Analysis." In International Petroleum Technology Conference. IPTC, 2022. http://dx.doi.org/10.2523/iptc-22291-ea.

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Abstract A new method was developed on High Performance Liquid Chromatography (HPLC) instrument equipped with a Photodiode Array UV detector to determine the Nitrite-Nitrogen and Nitrate-Nitrogen in seawater, industrial wastewater, and groundwater at very low concentrations. This HPLC used a reverse phase system with polar mobile phase and nonpolar C-18 Column. The split mechanism of the HPLC Chromatography was accomplished by employing acetonitrile and acidified water with pH 2.5, at 55:45 ACN: H2O v/v as a mobile phase, long HPLC Column (C-18, 0.5 μm, 250 × 4.6 mm) and at 1 mL/min flow rate.

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Reports on the topic "AlSb QCLs"

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McHale, Yalin, and Olsen. PR-179-13203-R01 Real Time Laser Sensor for Nitrogen Oxides and Carbon Monoxide. Pipeline Research Council International, Inc. (PRCI), 2014. http://dx.doi.org/10.55274/r0010020.

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Performance of current NOx sensors is problematic, in particular drift and cross-sensitivity to other species. Many lean burn engines are operated based on earlier calibrations. Operators must allow for drift and use large margins to meet emissions. Laser sensors (based on absorption at target wavelengths) are self-calibrating and immune to interferences. In particular, recently developed Quantum Cascade Lasers (QCLs) allow measurements at mid-infrared (MIR) wavelengths thereby allowing stronger signals, better schemes to mitigate interferences, and fast time response. This project evaluated a

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