Accedi

Bibliografie tematiche / Microscopie Raman / Articoli di riviste

Segui questo link per vedere altri tipi di pubblicazioni sul tema: Microscopie Raman.

Articoli di riviste sul tema "Microscopie Raman"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 maggio 2024

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Vedi i top-50 articoli di riviste per l'attività di ricerca sul tema "Microscopie Raman".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Vedi gli articoli di riviste di molte aree scientifiche e compila una bibliografia corretta.

1

Djaker, Nadia, Didier Marguet, and Hervé Rigneault. "Microscopie Raman stimulée (CARS) : Principes et applications." médecine/sciences 22, no. 10 (2006): 853–58. http://dx.doi.org/10.1051/medsci/20062210853.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Colomban, Philippe, Gérard Sagon, Adnan Louhichi, Housam Binous, and Naceur Ayed. "Identification par microscopie Raman des tessons et pigments de glaçures de céramiques de L'Ifriqiya (Dougga, XI-XVIIIèmes siècles)." Revue d'Archéométrie 25, no. 1 (2001): 101–12. http://dx.doi.org/10.3406/arsci.2001.1005.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Koussinsa, F., F. Bertin, and J. Bouix. "Etude par Microscopie Raman de la Couche Liquide Situee au Contact d'un Cristal de NaNO3 en Cours de Dissolution dans sa Solution Mère." Journal of Raman Spectroscopy 20, no. 4 (1989): 227–32. http://dx.doi.org/10.1002/jrs.1250200406.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Puppels, G. J., M. Grond, and J. Greve. "Direct Imaging Raman Microscope Based on Tunable Wavelength Excitation and Narrow-Band Emission Detection." Applied Spectroscopy 47, no. 8 (1993): 1256–67. http://dx.doi.org/10.1366/0003702934068017.

Testo completo

Abstract (sommario):

A new type of imaging Raman microscope is described. First the advantages and disadvantages of the two possible approaches to Raman microscopy based on signal detection by means of a charge-coupled-device camera (i.e., direct imaging and image reconstruction) are discussed. Arguments are given to show that in most cases direct imaging is to be preferred over image reconstruction, because it provides the desired information in less time. In the direct imaging Raman microscope presented in this communication, detection of scattered light occurs in a narrow interval around a fixed wavelength. Sel

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Govil, Anurag, David M. Pallister, and Michael D. Morris. "Three-Dimensional Digital Confocal Raman Microscopy." Applied Spectroscopy 47, no. 1 (1993): 75–79. http://dx.doi.org/10.1366/0003702934048497.

Testo completo

Abstract (sommario):

We describe an iterative image restoration technique which functions as digital confocal microscopy for Raman images. We deconvolute the lateral and axial components of the microscope point spread function from a series of optical sections, to generate a stack of well-resolved Raman images which describe the three-dimensional topology of a sample. The technique provides an alternative to confocal microscopy for three-dimensional microscopic Raman imaging.

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Wang, Shuang, Jianhua Zhao, Harvey Lui, Qingli He, and Haishan Zeng. "A modular Raman microspectroscopy system for biological tissue analysis." Spectroscopy 24, no. 6 (2010): 577–83. http://dx.doi.org/10.1155/2010/592315.

Testo completo

Abstract (sommario):

Raman spectroscopy has been used as a sensitive tool for studying biological tissue and evaluating disease. In many applications, microscopic level resolution spectral analysis is desirable. And this has been performed mostly by expensive commercial confocal micro-Raman systems. In this research, we present a simple method for building an economical and modular Raman microspectroscopy system that combines a microscope with a Raman spectrometer using an optical fiber bundle. The bundle with a circular collection end is positioned at an image plane of the microscope to collect Raman signals from

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Kawai, N. T., J. Sawatski, and C. Lehner. "Analysis of microsamples with an FT-Raman microscope." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1504–5. http://dx.doi.org/10.1017/s0424820100132157.

Testo completo

Abstract (sommario):

Rapid developments in near-IR filter and detector technology have resulted in FT-Raman spectroscopy emerging as a powerful technique in both research and analytical laboratories. The more recent advances in FT-Raman instrumentation now emphasize the optimization of different sampling accessories, including microsampling techniques. Microscopes attached to conventional Raman spectrometers operating at visible wavelengths have already proven to be applicable to many problems of chemical analysis. However, the optimized combination of an optical microscope and a near-IR FT-Raman spectrometer curr

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Tsuboi, Masamichi, Fumiko Kaneuchi, Teruki Ikeda, and Kiso Akahane. "Infrared and Raman microscopy of fowl feather barb." Canadian Journal of Chemistry 69, no. 11 (1991): 1752–57. http://dx.doi.org/10.1139/v91-257.

Testo completo

Abstract (sommario):

A fowl feather barb 10 μm in thickness was subjected to a polarized infrared spectroscopic measurement by the use of a microscopic device. Nearly 50% of its peptide groups were found to give the 1633 and 1684 cm−1 bands characteristic of the antiparallel-chain pleated sheet structure, and the remaining 50% gave the 1659 cm−1 band assignable to unordered polypeptide chains. The orientation of the pleated sheet was determined to be on average θ = 52° and χ = 39°, where θ and χ are the angles for the transformation of the XYZ coordinate system fixed on the pleated sheet and the abc coordinate sys

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Frost, Ray L., and Matt Weier. "Raman microscopy of selected autunite minerals." Neues Jahrbuch für Mineralogie - Monatshefte 2004, no. 12 (2004): 575–94. http://dx.doi.org/10.1127/0028-3649/2004/2004-0575.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Koussinsa, F., F. Bertin, and J. Bouix. "Etude par Microscopie Raman de la Couche Liquide Située au Contact d'un Cristal en Cours de Dissolution dans sa Solution Mère: Systèmes LiNO3H2O et KNO3H2O." Journal of Raman Spectroscopy 20, no. 11 (1989): 707–15. http://dx.doi.org/10.1002/jrs.1250201102.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

11

Christensen, Kenneth A., Nancy L. Bradley, Michael D. Morris, and Robert V. Morrison. "Raman Imaging Using a Tunable Dual-Stage Liquid Crystal Fabry-Perot Interferometer." Applied Spectroscopy 49, no. 8 (1995): 1120–25. http://dx.doi.org/10.1366/0003702953965155.

Testo completo

Abstract (sommario):

A 11 12 cm−1 bandpass electronically tunable liquid crystal dual-stage Fabry-Perot filter (DFPF) has been developed for use in Raman and fluorescence microscopic imaging. The imaging performance of the filter was demonstrated in the fluorescence and Raman modes. In the fluorescence mode, the filter was shown to give sharpened images using the nearest-neighbors deblurring algorithm. In the Raman imaging mode, background subtraction was shown to be useful for removal of the fluorescence from Raman images. With the use of a 100 × /1.25 objective, no significant decrease in the spatial resolution

Gli stili APA, Harvard, Vancouver, ISO e altri

12

Ao Jianpeng, 敖建鹏, 黄静 Huang Jing та 季敏标 Ji Minbiao. "受激拉曼散射显微技术及其应用". Laser & Optoelectronics Progress 59, № 4 (2022): 0400001. http://dx.doi.org/10.3788/lop202259.0400001.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

13

Feng Gong, 冯巩, 行霆燕 Xing Tingyan, 王楠 Wang Nan, 曾琦 Zeng Qi, 谢晖 Xie Hui та 陈雪利 Chen Xueli. "三维拉曼显微成像技术研究进展（特邀）". Laser & Optoelectronics Progress 61, № 6 (2024): 0618010. http://dx.doi.org/10.3788/lop232625.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

14

Yushina, A. A., V. A. Aseev, and A. D. Levin. "Development of measures for metrological support of Raman spectroscopy." Measurement Standards. Reference Materials 19, no. 1 (2023): 51–64. http://dx.doi.org/10.20915/2077-1177-2023-19-1-51-64.

Testo completo

Abstract (sommario):

The method of Raman spectroscopy (RS) is widely used for timely metrological support of technological lines of the industrial sector in the chemical, medical and pharmaceutical, food, as well as criminalistics and forensic examinations. The wide application of the Raman spectroscopy method requires the use of specific metrological support tools, namely, measures for calibrating Raman spectrometers and microscopes according to the spectrum shape (i. e. relative spectral sensitivity).The purpose of the research was to develop prototype measures designed to calibrate Raman spectrometers and micro

Gli stili APA, Harvard, Vancouver, ISO e altri

15

Eo, Hye-Jin, and Byung-Ha Lee. "Analysis of the Coloration Characteristics of Copper Red Glaze Using Raman Microscope." Journal of the Korean Ceramic Society 50, no. 6 (2013): 518–22. http://dx.doi.org/10.4191/kcers.2013.50.6.518.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

16

Reffner, John A. "Molecular Microspectroscopy: Where are we and where are we going ?" Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 250–51. http://dx.doi.org/10.1017/s042482010016371x.

Testo completo

Abstract (sommario):

Molecular microspectroscopy is the application of infrared or Raman spectroscopy, combined with light microscopy, for chemical analysis on the microscopic scale. For over a decade infrared microspectroscopy (IMS) has been an expanding technology both scientifically and commercially. Micro-Raman spectroscopy has a long history of scientific accomplishments with limited commercial success. Both of these techniques give spectral data that can be related to the bonding, crystalline state, isotopic content and molecular orientation of a material, but not its elemental composition. In this regards,

Gli stili APA, Harvard, Vancouver, ISO e altri

17

Di Yameng, 邸亚盟, 刘硕 Liu Shuo, 白振旭 Bai Zhenxu, 邓岩岩 Deng Yanyan, 吕志伟 Zhiwei Lü та 夏元钦 Xia Yuanqin. "三聚氰胺晶体的相干反斯托克斯拉曼散射显微成像研究". Laser & Optoelectronics Progress 59, № 10 (2022): 1018001. http://dx.doi.org/10.3788/lop202259.1018001.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

18

BARIK, T. K., P. BANDYOPADHYAY, and A. ROY. "PROBING INTERNAL STRESS AND CRYSTALLINITY IN WET FOAM VIA RAMAN SPECTROSCOPY." International Journal of Modern Physics B 23, no. 19 (2009): 3913–24. http://dx.doi.org/10.1142/s0217979209052364.

Testo completo

Abstract (sommario):

In this paper, we correlate the internal stress and the characteristics of a vibrational mode in wet foam. Using microscope images, we estimate the average size of the bubbles in wet foam, at specific time intervals, over a duration of 24 h. Raman spectra are also recorded at the same time intervals, over the same time frame. We show that the internal stress, originated from the microscopic structural change of foam with aging, can be related to the observed Raman shift of the low-frequency methylene rocking mode of the constituent surfactant molecules in foam. In this paper, we also show the

Gli stili APA, Harvard, Vancouver, ISO e altri

19

Matsuoka, D., H. Yamamoto, Shigehiro Nishino, Noriyuki Hasuike, Kenji Kisoda, and Hiroshi Harima. "Raman Scattering Study of Stress Distribution around Dislocation in SiC." Materials Science Forum 600-603 (September 2008): 337–40. http://dx.doi.org/10.4028/www.scientific.net/msf.600-603.337.

Testo completo

Abstract (sommario):

We have presented a combined method of microscopic measurements between Raman scattering and polarizing optical microscope to characterize inhomogeneous residual stress distributions around dislocations in 4H- and 6H-SiC wafers. First, stressed portions were found in wafers by an optical polarizing microscope under a crossed Nicole arrangement. Then, the portions were examined by Raman-imaging technique for lateral variations of phonon spectra. The residual stresses were quantified from the phonon-peak frequency shift using a known frequency-shift rate for 6H-SiC. Characterization to the depth

Gli stili APA, Harvard, Vancouver, ISO e altri

20

Tatarov, Boyan, Detlef Müller, Matthias Tesche, and Sung-Kyun Shin. "Lidar Innovations for Technologies and Environmental Sciences (LITES) – An Remote Sensing Infrastructure Facility: Setup and Measurements Examples." EPJ Web of Conferences 237 (2020): 07017. http://dx.doi.org/10.1051/epjconf/202023707017.

Testo completo

Abstract (sommario):

At the University of Hertfordshire, we have been developing a new remote sensing facility (LITES) to explore the feasibility of using Raman and/or fluorescence backscattering for chemical aerosol profiling. This paper provides an overview of the instruments of the facility and measurement examples. LITES includes a ultra-high-energy Nd:YAG/OPO setup, spectroscopic equipment with high spectral resolution, several imaging and single detectors that allow for time-resolved (lidar) signal detection, a Raman/fluorescence microscope, and a suite of gas and aerosol chambers. We present examples of ela

Gli stili APA, Harvard, Vancouver, ISO e altri

21

Meier, Robert J. "Micro-Raman spectroscopy applied to polymers." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1508–9. http://dx.doi.org/10.1017/s0424820100132170.

Testo completo

Abstract (sommario):

Over the last years micro-Raman spectroscopy has developed to a mature subdiscipline within the field of Raman spectroscopy. Its potential power seems obvious: (a) fluorescence suppression, a major obstacle in many Raman spectra; (b) micro-analysis of samples down to 1 μm lateral resolution yielding molecular information; (c) when using a confocal arrangement with the microscope, in addition to lateral resolution the depth resolution can be enhanced up to the 1 μm level.We applied micro-Raman spectroscopy over the last few years and recently developed a confocal Raman microscopic set-up. Our m

Gli stili APA, Harvard, Vancouver, ISO e altri

22

Rigneault, Hervé, and Romain Appay. "L’histologie Raman stimulée." Photoniques, no. 123 (2023): 40–44. http://dx.doi.org/10.1051/photon/202312340.

Testo completo

Abstract (sommario):

L’anatomopathologie est une spécialité médicale qui s’attache à examiner la structure microscopique des tissus et des cellules qui les composent afin de repérer des anomalies liées à une situation pathologique. Cet examen nécessite de réaliser un prélèvement tissulaire à partir duquel est effectué une section de quelques micromètres d’épaisseur qui est déposée sur une lame de verre et colorée pour pouvoir être examiné au microscope. Ce processus nécessite que du matériel biologique soit consommé car déposé sur une lame de verre, prend de 20 minutes (en version accélérée) à 24h et nécessite un

Gli stili APA, Harvard, Vancouver, ISO e altri

23

Lim, Seong-Ho, Young-Bum Kim, and Byung-Ha Lee. "Image Cut Raman Microscope Study of the Geryong Mountain Chulwha Buncheong Ware." Journal of the Korean Ceramic Society 47, no. 4 (2010): 312–18. http://dx.doi.org/10.4191/kcers.2010.47.4.312.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

24

Chen, Zeyu, and Chunmin Zhang. "Full-Stokes Polarization Raman Microscope." Journal of Physics: Conference Series 2597, no. 1 (2023): 012014. http://dx.doi.org/10.1088/1742-6596/2597/1/012014.

Testo completo

Abstract (sommario):

Abstract Polarization Raman spectroscopy (PRS) can provide additional information regarding molecular orientation and symmetry compared to Raman spectroscopy, while traditional PRS only records parallel and perpendicular components of Raman scattered light. Recently, a channelled polarization Raman microscope was developed to acquire the linear-Stokes polarization Raman spectra. Since the circular polarization Raman spectra may contain important information related to molecular structure, a full-Stokes polarization Raman microscope (FPRM) is presented in this paper. A polarization modulator co

Gli stili APA, Harvard, Vancouver, ISO e altri

25

Sage, Linda. "Raman Microscopes." Analytical Chemistry 81, no. 9 (2009): 3222–26. http://dx.doi.org/10.1021/ac900366y.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

26

Barbillat, J., M. Delhaye, and P. Dhamelincourt. "Confocal Raman mapping." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1514–15. http://dx.doi.org/10.1017/s0424820100132200.

Testo completo

Abstract (sommario):

Raman mapping, with a spatial resolution close to the diffraction limit, can help to reveal the distribution of chemical species at the surface of an heterogeneous sample.As early as 1975,three methods of sample laser illumination and detector configuration have been proposed to perform Raman mapping at the microscopic level (Fig. 1),:- Point illumination:The basic design of the instrument is a classical Raman microprobe equipped with a PM tube or either a linear photodiode array or a two-dimensional CCD detector. A laser beam is focused on a very small area ,close to the diffraction limit.In

Gli stili APA, Harvard, Vancouver, ISO e altri

27

Whitley, Andrew, Bob Bennett, and Brian Smith. "The Use Of Encoders To Improve Both The Spectral And SpatialPrecision M Raman Microscope Mapping Experiments." Microscopy and Microanalysis 5, S2 (1999): 52–53. http://dx.doi.org/10.1017/s1431927600013581.

Testo completo

Abstract (sommario):

With the introduction of high efficiency short acquisition time Raman microscopes at the beginning of the 1990's Raman mapping experiments became more realistic for many different materials. Previous to this time Raman maps of any useful size would take far too long for all but the strongest of Raman scatterers. A typical Raman spectrum used to take 30 minutes or more, a relatively small map of 50μ × 50μ using a step size of 1μ, would take over 50 days to acquire. Today the same map can be obtained in less than 4 hours. The use of an xyz mapping stage in conjunction with a Raman microscope is

Gli stili APA, Harvard, Vancouver, ISO e altri

28

Brenan, Colin J. H., and Ian W. Hunter. "Confocal Image Properties of a Confocal Scanning Laser Visible Light FT-Raman Microscope." Applied Spectroscopy 49, no. 7 (1995): 971–76. http://dx.doi.org/10.1366/0003702953964714.

Testo completo

Abstract (sommario):

The confocal Raman microscope is an instrument designed for acquisition of high-contrast volumetric Raman spectral images of three-dimensional chemical structures. Little effort, however, has gone into the investigation of the spatial imaging properties of this class of confocal microscope. In this paper we present experimental results, obtained with a confocal scanning laser visible light FT-Raman microscope we built, that demonstrates the high depth resolution and enhanced Raman image contrast intrinsic to the confocal Raman microscope design. We explore these microscope properties through a

Gli stili APA, Harvard, Vancouver, ISO e altri

29

Dobrzańska-Danikiewicz, Anna D., Weronika Wolany, Dariusz Łukowiec, Karolina Jurkiewicz, and Paweł Niedziałkowski. "Characteristics of multiwalled carbon nanotubes-rhenium nanocomposites with varied rhenium mass fractions." Nanomaterials and Nanotechnology 7 (January 1, 2017): 184798041770717. http://dx.doi.org/10.1177/1847980417707173.

Testo completo

Abstract (sommario):

The purpose of the article is to discuss the process of oxidation of carbon nanotubes subsequently subjected to the process of decoration with rhenium nanoparticles. The influence of functionalization in an oxidizing medium is presented and the results of investigations using Raman spectroscopy and infrared spectroscopy are discussed. Multiwalled carbon nanotubes rhenium-type nanocomposites with the weight percentage of 10%, 20% and 30% of rhenium are also presented in the article. The structural components of such nanocomposites are carbon nanotubes decorated with rhenium nanoparticles. Micro

Gli stili APA, Harvard, Vancouver, ISO e altri

30

Cherney, Daniel P. "Chemical Mapping of Rubbers and Polymers via Confocal Raman Spectroscopic Imaging." Rubber Chemistry and Technology 82, no. 4 (2009): 418–29. http://dx.doi.org/10.5254/1.3548255.

Testo completo

Abstract (sommario):

Abstract Confocal Raman Spectroscopic Imaging has been demonstrated as a non-destructive technique to determine the spatial and chemical content of rubbers and polymers. Raman spectroscopy is a particularly useful tool for characterizing chemicals and mixtures because each chemically-distinct species has a unique Raman spectrum. The addition of confocal optics to the microscope greatly improves both the lateral and axial spatial resolution of the instrument. The lateral resolution of the instrument is less than one-third of a micron. The axial resolution, the resolution in the direction of inc

Gli stili APA, Harvard, Vancouver, ISO e altri

31

ADACHI, Mariko. "Laser Scanning Raman Microscope." Journal of The Surface Finishing Society of Japan 72, no. 3 (2021): 154–58. http://dx.doi.org/10.4139/sfj.72.154.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

32

Heintz, Annabell, Sebastian Sold, Felix Wühler, et al. "Design of a Multimodal Imaging System and Its First Application to Distinguish Grey and White Matter of Brain Tissue. A Proof-of-Concept-Study." Applied Sciences 11, no. 11 (2021): 4777. http://dx.doi.org/10.3390/app11114777.

Testo completo

Abstract (sommario):

Multimodal imaging gains increasing popularity for biomedical applications. This article presents the design of a novel multimodal imaging system. The centerpiece is a light microscope operating in the incident and transmitted light mode. Additionally, Raman spectroscopy and VIS/NIR reflectance spectroscopy are adapted. The proof-of-concept is realized to distinguish between grey matter (GM) and white matter (WM) of normal mouse brain tissue. Besides Raman and VIS/NIR spectroscopy, the following optical microscopy techniques are applied in the incident light mode: brightfield, darkfield, and p

Gli stili APA, Harvard, Vancouver, ISO e altri

33

Kowalska, E., J. Radomska, P. Byszewski, et al. "Morphology and electronic properties of carbon nanotubes grown with Fe catalyst." Journal of Materials Research 18, no. 10 (2003): 2451–58. http://dx.doi.org/10.1557/jmr.2003.0341.

Testo completo

Abstract (sommario):

We describe the synthesis and characterization of aligned carbon nanotubes deposited on quartz substrates by pyrolysis of a xylene–ferrocene mixture at 700 °C at atmospheric pressure. For microscopic characterization of the pyrolyzed products, scanning and transmission electron microscopies and scanning tunneling microcopy were used, and properties of bulk samples were characterized by Raman spectroscopy and x-ray powder diffraction methods. The nanotubes have topological defects and many contain metal particles. Scanning tunneling spectroscopy proved that the nanotubes had a metallic electric

Gli stili APA, Harvard, Vancouver, ISO e altri

34

Wang, Yuan, and Liping Huang. "A Simplified Method of Microscopic Polarizability Tensor Differential of Hyper-Raman Spectroscopy Based on the Bond Additivity Model." International Journal of Optics 2022 (March 10, 2022): 1–6. http://dx.doi.org/10.1155/2022/2710506.

Testo completo

Abstract (sommario):

Coherent anti-Stokes Raman spectroscopy (CARS) and Ccherent anti-Stokes hyper-Raman spectroscopy (CAHRS), as other high-order nonlinear spectroscopy techniques, are widely exploited in many research fields, such as dynamic processes, gene expression spectrum screening, high-resolution spectroscopy, and nonlinear high-resolution imaging. However, it is difficult to make a quantitative analysis of the spectral signals that involve a large number of high-order micropolarizability tensors. It is reported that the CARS and CAHRS microscopic hyperpolarizability tensor elements can be decomposed into

Gli stili APA, Harvard, Vancouver, ISO e altri

35

Ajito, Katsuhiro, and Keiichi Torimitsu. "Single Nanoparticle Trapping Using a Raman Tweezers Microscope." Applied Spectroscopy 56, no. 4 (2002): 541–44. http://dx.doi.org/10.1366/0003702021955015.

Testo completo

Abstract (sommario):

We have obtained a Raman spectrum of single nanometer-sized particles (nano-particles) trapped by laser tweezers for the first time. The microscope used in this study is a new version of our Raman tweezers microscope (RTM); it contains an oil-immersed objective lens with high numerical aperture to increase the force of the optical radiation pressure of the near-infrared laser beam to trap single organic and biological nanoparticles and provides sufficient sensitivity for the Raman measurement of the trapped nano-particles. The confocal arrangement in the system completely eliminates the Raman

Gli stili APA, Harvard, Vancouver, ISO e altri

36

Torres Filho, Ivo P., James Terner, Roland N. Pittman, Leonardo G. Somera, and Kevin R. Ward. "Hemoglobin oxygen saturation measurements using resonance Raman intravital microscopy." American Journal of Physiology-Heart and Circulatory Physiology 289, no. 1 (2005): H488—H495. http://dx.doi.org/10.1152/ajpheart.01171.2004.

Testo completo

Abstract (sommario):

A system is described for in vivo noninvasive measurements of hemoglobin oxygen saturation (HbO2Sat) at the microscopic level. The spectroscopic basis for the application is resonant Raman enhancement of Hb in the violet/ultraviolet region, allowing simultaneous identification of oxy- and deoxyhemoglobin with the same excitation wavelength. The heme vibrational bands are well known, but the technique has never been used to determine microvascular HbO2Sat in vivo. A diode laser light (power: 0.3 mW) was focused onto sample areas 15–30 μm in diameter. Raman spectra were obtained in backscatterin

Gli stili APA, Harvard, Vancouver, ISO e altri

37

Manser, Steffen, Shaun Keck, Mario Vitacolonna, Felix Wuehler, Ruediger Rudolf, and Matthias Raedle. "Innovative Imaging Techniques: A Conceptual Exploration of Multi-Modal Raman Light Sheet Microscopy." Micromachines 14, no. 9 (2023): 1739. http://dx.doi.org/10.3390/mi14091739.

Testo completo

Abstract (sommario):

Advances in imaging of microscopic structures are supported and complemented by adaptive visualization tools. These tools enable researchers to precisely capture and analyze complex three-dimensional structures of different kinds such as crystals, microchannels and electronic or biological material. In this contribution, we focus on 3D cell cultures. The new possibilities can play a particularly important role in biomedical research, especially here in the study of 3D cell cultures such as spheroids in the field of histology. By applying advanced imaging techniques, detailed information about

Gli stili APA, Harvard, Vancouver, ISO e altri

38

Brenan, Colin J. H., and Ian W. Hunter. "Design and Characterization of a Visible-Light Fourier Transform Raman Spectrometer." Applied Spectroscopy 49, no. 8 (1995): 1086–93. http://dx.doi.org/10.1366/0003702953965074.

Testo completo

Abstract (sommario):

We demonstrate the feasibility of Fourier transform (FT) Raman spectroscopy with visible wavelength excitation through design, construction, and characterization of a visible-light FT-Raman spectrometer. Our motivation to explore this approach stemmed from the need for a versatile Raman spectrometer for use in a confocal scanning laser Raman microscope we built. We discuss the spectrometer design features which contribute to efficient and reliable microscope operation and evaluate the spectrometer performance on the basis of a series of measurements chosen because of their impact on confocal m

Gli stili APA, Harvard, Vancouver, ISO e altri

39

Messerschmidt, Robert G., and D. Bruce Chase. "FT-Raman Microscopy: Discussion and Preliminary Results." Applied Spectroscopy 43, no. 1 (1989): 11–15. http://dx.doi.org/10.1366/0003702894201761.

Testo completo

Abstract (sommario):

This paper reports on the first spectra obtained using a microscope apparatus to perform FT-Raman spectroscopy. It is considered desirable to use a standard FT-IR microscope for these measurements, since this approach may lead to the attainment of both FT-IR and FT-Raman microscope data from a single instrument. The relative performance of the microscope apparatus compared to that of a previously designed macro-apparatus is studied. The described micro-apparatus is then used to measure the FT-Raman spectrum of a single crystal of bis-methyl-styry I benzene and of a single fiber of Kevlar®. The

Gli stili APA, Harvard, Vancouver, ISO e altri

40

LI Runfeng, 李润丰, 董大山 DONG Dashan та 施可彬 SHI Kebin. "光场调控在相干拉曼散射光谱与成像中的应用（特邀）". ACTA PHOTONICA SINICA 51, № 1 (2022): 0151108. http://dx.doi.org/10.3788/gzxb20225101.0151108.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

41

Ozeki, Yasuyuki. "Molecular vibrational imaging by stimulated Raman scattering microscopy: principles and applications [Invited]." Chinese Optics Letters 18, no. 12 (2020): 121702. http://dx.doi.org/10.3788/col202018.121702.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

42

Lv, J. G., S. Liu, J. M. Feng, Y. Liu, S. D. Zhou, and R. Chen. "Effective identification of paints pigments in hit-and-run cases with confocal Raman microscope." Pigment & Resin Technology 45, no. 4 (2016): 294–300. http://dx.doi.org/10.1108/prt-05-2015-0044.

Testo completo

Abstract (sommario):

Purpose The purpose of this paper is to identify different automotive coatings using Confocal Raman microscope which could hardly be differentiated with Fourier transform infrared microscope (FTIR). Design/methodology/approach Raman spectroscopy was used to provide extra vibration information to infrared spectroscopy. Paints preparation was not necessary, and only 30 s was needed for each sample in an optimised method. Paints were first analysed by FTIR and then compared with Raman microscope. Findings Raman microscope was used to address the lack of ability of FTIR in discriminating four grou

Gli stili APA, Harvard, Vancouver, ISO e altri

43

Egawa, Mariko. "Raman microscopy for skin evaluation." Analyst 146, no. 4 (2021): 1142–50. http://dx.doi.org/10.1039/d0an02039g.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

44

Ranjan, Rajeev, Maria Antonietta Ferrara, and Luigi Sirleto. "Stimulated Raman Microscopy Implemented by Three Femtosecond Laser Sources." EPJ Web of Conferences 255 (2021): 06003. http://dx.doi.org/10.1051/epjconf/202125506003.

Testo completo

Abstract (sommario):

In this work, the implementation of a femtosecond Stimulated Raman Scattering microscope, equipped with three femtosecond laser sources: a Titanium-Sapphire (Ti:Sa), an optical parametric oscillator (OPO), and a second harmonic generator (SHG); is presented. Our microscope is designed so that it can cover all the regions of Raman spectra, taking advantage of two possible laser combinations. The first, Ti:Sa and OPO laser beams, which cover the C-H region (>2800 cm-1 ) in stimulated Raman gain (SRG) modality, whereas the second, Ti:Sa and SHG laser beams, covering the C-H region and the fing

Gli stili APA, Harvard, Vancouver, ISO e altri

45

Sijtsema, Nanna M., Siddi D. Wouters, Cees J. De Grauw, Cees Otto, and Jan Greve. "Confocal Direct Imaging Raman Microscope: Design and Applications in Biology." Applied Spectroscopy 52, no. 3 (1998): 348–55. http://dx.doi.org/10.1366/0003702981943806.

Testo completo

Abstract (sommario):

A confocal direct imaging Raman microscope (CDIRM) based on two synchronized scanning mirrors, a monochromator, and two charge-coupled device (CCD) cameras has been developed. With this system it is possible to make both Raman spectra of a small measurement volume and images of a larger sample area in one specific Raman band. The spatial resolution of the system was determined for two limiting situations: a small sphere and a thin layer. The image of a 0.282 μm sphere appeared to have a full width at half-maximum (FWHM) of 1.2 μm in the axial and 0.37 μm in the lateral direction, whereas the i

Gli stili APA, Harvard, Vancouver, ISO e altri

46

Ahmed, Aftab, Yuanjie Pang, Ghazal Hajisalem, and Reuven Gordon. "Antenna Design for Directivity-Enhanced Raman Spectroscopy." International Journal of Optics 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/729138.

Testo completo

Abstract (sommario):

Antenna performance can be described by two fundamental parameters: directivity and radiation efficiency. Here, we demonstrate nanoantenna designs in terms of improved directivity. Performance of the antennas is demonstrated in Raman scattering experiments. The radiated beam is directed out of the plane by using a ground plane reflector for easy integration with commercial microscopes. Parasitic elements and parabolic and waveguide nanoantennas with a ground plane are explored. The nanoantennas were fabricated by a series of electron beam evaporation steps and focused ion beam milling. As we h

Gli stili APA, Harvard, Vancouver, ISO e altri

47

Kuzmin, Andrey N., Artem Pliss, Alex Rzhevskii, Adrian Lita, and Mioara Larion. "BCAbox Algorithm Expands Capabilities of Raman Microscope for Single Organelles Assessment." Biosensors 8, no. 4 (2018): 106. http://dx.doi.org/10.3390/bios8040106.

Testo completo

Abstract (sommario):

Raman microspectroscopy is a rapidly developing technique, which has an unparalleled potential for in situ proteomics, lipidomics, and metabolomics, due to its remarkable capability to analyze the molecular composition of live cells and single cellular organelles. However, the scope of Raman spectroscopy for bio-applications is limited by a lack of software tools for express-analysis of biomolecular composition based on Raman spectra. In this study, we have developed the first software toolbox for immediate analysis of intracellular Raman spectra using a powerful biomolecular component analysi

Gli stili APA, Harvard, Vancouver, ISO e altri

48

Morris, Hannah R., Clifford C. Hoyt, Peter Miller, and Patrick J. Treado. "Liquid Crystal Tunable Filter Raman Chemical Imaging." Applied Spectroscopy 50, no. 6 (1996): 805–11. http://dx.doi.org/10.1366/0003702963905655.

Testo completo

Abstract (sommario):

A Lyot-type liquid crystal tunable filter (LCTF) suitable for high-definition Raman chemical imaging has been developed. The LCTF has been incorporated into an efficient Raman imaging system that provides significant performance advantages relative to any previous approach to Raman microscopy. The LCTF and associated optical path is physically compact, which accommodates integration of the LCTF within an infinity-corrected optical microscope. The LCTF simultaneously provides diffraction-limited spatial resolution and 7.6-cm-1 spectral bandpass across the full free spectral range of the imaging

Gli stili APA, Harvard, Vancouver, ISO e altri

49

Guo, Li Na, Zhi Lie Tang, and Da Xing. "Microscopic Three-Dimensional Imaging Theory Based on RIKES." Key Engineering Materials 364-366 (December 2007): 1089–94. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.1089.

Testo completo

Abstract (sommario):

A novel nonlinear confocal microscopic imaging system based on Raman induced Kerr effect spectroscopy (RIKES) is presented in this paper. The three-dimensional (3-D) microscopic imaging theory is derived with the Fourier imaging theory and nonlinear optical principle. The impact of RIKES on the spatial resolution and imaging properties of confocal microscopic imaging system has been analyzed in detail by the imaging theory. It’s proved that the RIKES nonlinear microscopic imaging system can effectively improve the imaging contrast and provide more characteristic information on Raman spectrum a

Gli stili APA, Harvard, Vancouver, ISO e altri

50

Murthy, M. Narasimha, S. Anusha, G. Ravinder, and C. J Sreelatha. "IMPACT OF BLENDING OF SOLVENTS ON CRYSTAL STRUCTURAL AND SURFACE MORPHOLOGICAL CHARACTERISTICS OF WET CHEMICAL SOL-GEL SYNTHESIZED ZnONANO-THIN FILMS." RASAYAN Journal of Chemistry 16, no. 02 (2023): 680–85. http://dx.doi.org/10.31788/rjc.2023.1628291.

Testo completo

Abstract (sommario):

The nature of the solvent used to synthesize nanomaterial is one of the key factors that can influence the properties of nanomaterials. In this study, seed solutions containing various solventsblending were prepared at 0.2M concentration to fabricate Zinc oxide (ZnO) nano-thin films by the dip coating technique. Organic solvents such as methanol, ethanol and 2-Methoxyethanol were used to prepare the solvent blending. Various characterization techniques such as XRD diffraction, surface morphology studies using an electronic microscope (FESEM), Raman spectrum analysis, and double beam optical sp

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!