Academic literature on the topic 'Raman Laser Spectrometer (RLS)'
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Journal articles on the topic "Raman Laser Spectrometer (RLS)"
Lopez‐Reyes, Guillermo, Marco Veneranda, Jose Antonio Manrique, Álvaro González Martín, Andoni Moral, Carlos Perez‐Canora, Jose Antonio Rodríguez Prieto, et al. "The Raman laser spectrometer ExoMars simulator (RLS Sim): A heavy‐duty Raman tool for ground testing on ExoMars." Journal of Raman Spectroscopy 53, no. 3 (November 21, 2021): 382–95. http://dx.doi.org/10.1002/jrs.6281.
Full textLopez‐Reyes, Guillermo, Cedric Pilorget, Andoni G. Moral, Jose Antonio Manrique, Aurelio Sanz, Alicia Berrocal, Marco Veneranda, et al. "Raman Laser Spectrometer (RLS) calibration target design to allow onboard combined science between the RLS and MicrOmega instruments on the ExoMars rover." Journal of Raman Spectroscopy 51, no. 9 (January 23, 2020): 1718–30. http://dx.doi.org/10.1002/jrs.5832.
Full textRamos, Gonzalo, Miguel Sanz‐Palomino, Andoni G. Moral, Carlos Pérez, Tomás Belenguer, Rosario Canchal, José A. R. Prieto, et al. "RLS iOH: ExoMars Raman laser spectrometer optical head bread board to flight model design and performance evolutions." Journal of Raman Spectroscopy 51, no. 9 (November 26, 2019): 1761–70. http://dx.doi.org/10.1002/jrs.5765.
Full textBandyopadhyay, A. K., Nita Dilawar, Arun Vijayakumar, Deepak Varandani, and Dharambir Singh. "A low cost laser-raman spectrometer." Bulletin of Materials Science 21, no. 5 (October 1998): 433–38. http://dx.doi.org/10.1007/bf02744931.
Full textSirleto, Luigi. "Micro and Nano Raman Lasers." Micromachines 12, no. 1 (December 25, 2020): 15. http://dx.doi.org/10.3390/mi12010015.
Full textFu, Yao, Jincheng Cao, Kaoru Yamanouchi, and Huailiang Xu. "Air-Laser-Based Standoff Coherent Raman Spectrometer." Ultrafast Science 2022 (August 3, 2022): 1–9. http://dx.doi.org/10.34133/2022/9867028.
Full textKato, Ryoei, and Kun'ichi Miyazawa. "Raman Laser Polymerization ofC60Nanowhiskers." Journal of Nanotechnology 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/101243.
Full textTAKEDA, Shigeto, Hisako URABE, Ryosuke SHIMIZU, Motowo TSUKAKOSHI, and Takahiro KASUYA. "Development of a UV-Laser Excited Micro-Raman Spectrometer." Review of Laser Engineering 20, no. 6 (1992): 406–10. http://dx.doi.org/10.2184/lsj.20.6_406.
Full textSparrow, Mark C., John F. Jackovitz, Calum H. Munro, William F. Hug, and Sanford A. Asher. "New 224 nm Hollow Cathode Laser-UV Raman Spectrometer." Applied Spectroscopy 55, no. 1 (January 2001): 66–70. http://dx.doi.org/10.1366/0003702011951263.
Full textWang, Mingchang, Zaitong Lu, Lifen Zhang, Jizhong Chen, Bibo Feng, and Zhijiang Wang. "A grating spectrometer for Raman free electron laser diagnostics." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 331, no. 1-3 (July 1993): 667–69. http://dx.doi.org/10.1016/0168-9002(93)90133-3.
Full textDissertations / Theses on the topic "Raman Laser Spectrometer (RLS)"
Everall, Neil John. "Design and performance analysis of a picosecond-pulsed laser Raman spectrometer for fluorescence rejection in Raman spectroscopy." Thesis, Durham University, 1986. http://etheses.dur.ac.uk/6869/.
Full textEdwards, Peter Henry. "In-situ spectroscopy on Mars : ChemCam activities and preparations for the Raman Laser Spectrometer on ExoMars." Thesis, University of Leicester, 2018. http://hdl.handle.net/2381/42750.
Full textLloret, Patricia Ramos. "\"Avaliação da resistência flexural, microinfiltração e grau de conversão de uma resina composta fotoativada com luz halógena e laser de argônio\"." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/23/23134/tde-23052007-143833/.
Full textIn the research was evaluated the flexural strength, the microleakage and the degree of conversion of a micro-hybrid composite resin photocured with argon laser and halogen lamp. For both flexural test and degree of conversion analysis five bar samples of composite resin (25 X 2 X 2mm) were prepared and polymerized following the ISO 4049. The light cured unit halogen was used with 500mW/cm2 for 20 seconds and the argon laser with 250mW for 10 and 20 seconds. After curing, samples were removed from the molds, polished using silicon carbide paper up to 4000 grit-number and stored in distilled water in dark environment at 37oC for 24 hours. The flexural property was quantified by a three-point loading test (Model 4411, Instron Corp., Canton, MA) with a cross-head speed of 1,0mm/min. To microleakage test sixty bovine incisors were used to prepare standardized class V cavities that were restored and polished. The specimens were stored in water for 24 hours at 37oC and thermocycled 500 times between water baths kept at 5 oC and 55 oC. After thermocycling, specimens were immersed in a aqueous solution of basic fuchsin for 24 hours. Longitudinal sections of each restoration were obtained and examined with a stereomicroscope for qualitive evaluation of microleakage. FTRaman RFS 100/S spectrometer (Bruker) was used to analyse the degree of conversion. The ANOVA test showed that there were no statistically significant difference of the flexural setrength between the photo-activation types evaluated in the flexural study. Microleakage data was statistically analysed by Mann-Whitney and Kruskall-Wallis tests. Enamel margins resulted in statistical lower degree of leakage than dentin margins. There was no statistically significant difference between the three types of photo-curing studied. The ANOVA test also showed that there were no statistically significant difference of the degree of conversion between the studied groups. According to the methodology used in this research it was concluded that the argon laser is a posible alternative for photocuring, providing the same quality of polymerization as do the halogen lamp. None of the photocured units tested in this study completely eliminated microleakage.
Pereira, Alexandra Reis. "Initial development of a Raman Spectrometer for melanoma diagnosis applications." Master's thesis, 2021. http://hdl.handle.net/10316/98095.
Full textO melanoma é o cancro da pele mais agressivo e letal. Em 2020, o número estimado de novos casos foi de 324 635 e 57 043 pessoas de ambos os sexos e todas as idades morreram em todo o mundo da doença. A elevada letalidade deve se (i) ao facto de o melanoma ser de difícil distinção em relação a outras lesões melanocíticas benignas, (ii) ao seu diagnóstico ser apenas baseado em aspetos morfológicos, e (iii) à sua alta probabilidade de metastização. Consequentemente, o processo de diagnóstico de melanoma leva a: excisões desnecessárias de lesões benignas e, mais grave, à não identificação de lesões em estado inicial, ou seja, melanomas in situ (MIS). O diagnóstico de MIS é de extrema importância uma vez que ainda são lesões não invasivas que podem ser tratadas através de uma excisão completa da lesão, com uma taxa de sucesso de cura de 97% a 5 anos. A espetroscopia Raman é uma técnica ótica de espetroscopia vibracional objetiva, não-invasiva e não-destrutiva que fornece informação da composição bioquímica de uma amostra. Como consequência do seu grande potencial, tem sido cada vez mais usada em aplicações biomédicas para complementar o diagnóstico clínico de doenças em fase inicial ou para assistir na orientação da cirurgia oncológica.O objetivo principal apresentado nesta dissertação é desenvolver um espetrómetro Raman inicial, simples, com aquisições rápidas, independente do operador e que permita detetar lesões MIS, assistindo clínicos no diagnóstico em ambiente de consulta. O espetrómetro irá incluir um laser na zona do infravermelho próximo e analisar a região espetral de elevados números de onda, de forma a evitar a influência da autofluorescência dos tecidos pigmentados no sinal adquirido. Esta região espetral já provou ser suficiente para distinguir lesões MIS e lesões melanocíticas benignas. Nesta Dissertação,todos os componentes necessários foram selecionados e, em seguida, a montagem do espetrómetro Raman foi simulada no software 3DOptix. Considerando o conhecimento adquirido durante a simulação, o protótipo foi implementado na mesa ótica. Em seguida, foram realizados procedimentos de alinhamento e calibração, usando lâmpadas de elementos químicos (halogéneo, neon e mercúrio (Hg)). Finalmente, o espetrómetro Raman desenvolvido foi testado com uma amostra de ciclohexano.A calibração do espetrómetro foi realizada com sucesso, tendo sido obtida uma região de deteção entre os 487 e 1110 nm e uma resolução experimental de menos de 3 nm com a lâmpada de Hg. Embora o espetrómetro desenvolvido tenha detetado com sucesso o espetro da lâmpada de Hg, o mesmo não foi possível com o sinal Raman de uma amostra de ciclohexano. Assim, concluiu-se que o sistema de deteção utilizado (sensor CMOS) terá de ser substituído por um detetor mais sensível, como um detetor de InGaAs, que adquire sinais com comprimentos de onda acima de 1100nm, a fim de detetar sinais fracos como o sinal Raman.
Melanoma is the most aggressive and lethal form of skin cancer. In 2020, there were 324 635 estimated new cases of the disease and 57 043 deaths worldwide for both sexes and all ages. The high mortality rate associated with melanoma is due to (i) its difficult distinction between benign melanocytic lesions (BML), (ii) the currently standard diagnosis for the disease being solely morphology-based, and (iii) its high metastatic propensity. Consequently, clinical diagnosis of melanoma often leads to unnecessary resections of benign lesions and worse, missing early stage lesions, melanoma in situ (MIS). Diagnosis of MIS lesions is extremely important since they are non-invasive melanomas that can be treated by a complete resection of the lesion, with a success rate of 97% 5-years. Raman Spectroscopy (RS) is an objective, non-invasive and non-destructive optical vibrational spectroscopic technique that gives insight into the biochemical composition of the sample. As a consequence of its great potential, it has been increasingly employed in biomedical applications to complement the clinical diagnosis of early stage diseases or to assist oncological surgery guidance. The main objective of the presented dissertation is the initial development of a Raman Spectrometer that can detect early stage melanomas, providing a simple, fast and operator-independent diagnosis to assist clinicians in the clinical setting. This spectrometer will use a near-infrared (NIR) laser and operate in the high-wavenumber (HWVN) region of the spectrum to avoid tissue autofluorescence. This region has effectively proved to distinguish MIS from BML in the past. In this work, all the components needed were selected, and then the Raman Spectrometer was simulated using the 3DOptix software. Considering the knowledge acquired during the simulation, the prototype was assembled in the optical table. Then, alignment and calibration procedures were carried out using several element lamps (halogen, neon and mercury (Hg)). Finally, the built-in Raman spectrometer was tested with a cyclohexane sample. The calibration was fully accomplished with a detection range from 487 to 1100 nm and an experimental resolution of less than 3 nm with the Hg lamp. However, although the built-in spectrometer has successfully detected the Hg lamp’s spectrum, it was not sensitive to the Raman signal of a sample of Cyclohexane. Hence, it was concluded that the detection system (CMOS sensor) used needs to be replaced by a more sensitive detector, such as InGaAs array detector, which acquires signals with longer wavelengths (above 1100nm), in order to detect weak signals such as Raman signals.
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Universidade de Coimbra - Centro-01-0145-FEDER-029956
Books on the topic "Raman Laser Spectrometer (RLS)"
Wardlaw, Graeme M. Kr-Ar laser Raman spectrometer for low temperature measurements. St. Catharines, Ont: Brock University, Dept. of Physics, 2004.
Find full textConference papers on the topic "Raman Laser Spectrometer (RLS)"
Petrov, Georgi, Vladislav Yakovlev, and Vladislav Shcheslavskiy. "Raman spectroscopy without spectrometer." In Quantum Electronics and Laser Science Conference. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/qels.2011.pdpb6.
Full textRull, F., A. Sansano, E. Díaz, C. P. Canora, A. G. Moral, C. Tato, M. Colombo, et al. "ExoMars Raman laser spectrometer overview." In SPIE Optical Engineering + Applications, edited by Richard B. Hoover, Gilbert V. Levin, Alexei Y. Rozanov, and Paul C. W. Davies. SPIE, 2010. http://dx.doi.org/10.1117/12.868159.
Full textBazalgette Courrèges-Lacoste, Gregory, Berit Ahlers, Erik Boslooper, Fernando Rull-Perez, and Sylvestre Maurice. "Combined raman spectrometer/laser-induced breakdown spectrometer design concept." In International Conference on Space Optics 2006, edited by Errico Armandillo, Josiane Costeraste, and Nikos Karafolas. SPIE, 2017. http://dx.doi.org/10.1117/12.2308176.
Full textDíaz, E., A. G. Moral, C. P. Canora, G. Ramos, O. Barcos, J. A. R. Prieto, I. B. Hutchinson, et al. "ExoMars Raman laser spectrometer breadboard overview." In SPIE Optical Engineering + Applications, edited by Richard B. Hoover, Paul C. W. Davies, Gilbert V. Levin, and Alexei Y. Rozanov. SPIE, 2011. http://dx.doi.org/10.1117/12.896182.
Full textRull, F., A. Sansano, E. Díaz, C. P. Canora, A. G. Moral, C. Tato, M. Colombo, et al. "ExoMars Raman laser spectrometer for Exomars." In SPIE Optical Engineering + Applications, edited by Richard B. Hoover, Paul C. W. Davies, Gilbert V. Levin, and Alexei Y. Rozanov. SPIE, 2011. http://dx.doi.org/10.1117/12.896787.
Full textBeasley, Gary B., and Chrysanthos A. Panayiotou. "CCCC and LASER-TEC educational Raman spectrometer demo." In 15th Conference on Education and Training in Optics and Photonics, ETOP 2019, edited by Anne-Sophie Poulin-Girard and Joseph A. Shaw. SPIE, 2019. http://dx.doi.org/10.1117/12.2523866.
Full textRodriguez, Pablo, Marina Benito, César Quintana, Carlos Pérez, and Andoni Moral. "Flight laser module monitoring during ExoMars Raman laser spectrometer environmental testing." In International Conference on Space Optics — ICSO 2021, edited by Zoran Sodnik, Bruno Cugny, and Nikos Karafolas. SPIE, 2021. http://dx.doi.org/10.1117/12.2599446.
Full textSantiago, Amaia, Gonzalo Ramos Zapata, Cecilia Gordillo, Juan F. Cabrero, Andoni Moral Inza, José A. Rodriguez, Miguel Sanz, et al. "Raman laser spectrometer optical head: flight model performance verification." In Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, edited by Howard A. MacEwen, Makenzie Lystrup, Giovanni G. Fazio, Natalie Batalha, Edward C. Tong, and Nicholas Siegler. SPIE, 2018. http://dx.doi.org/10.1117/12.2313462.
Full textKaras, Boris, and Alexandr Grishkanich. "Portable Raman dual-laser spectrometer for oil and gas." In Environmental Effects on Light Propagation and Adaptive Systems III, edited by Karin Stein and Szymon Gladysz. SPIE, 2020. http://dx.doi.org/10.1117/12.2574603.
Full textIngley, R., I. B. Hutchinson, H. G. M. Edwards, A. G. Moral, E. Diaz, G. Ramos, O. Barcos, et al. "ExoMars Raman laser spectrometer breadboard: detector design and performance." In SPIE Optical Engineering + Applications, edited by Richard B. Hoover, Paul C. W. Davies, Gilbert V. Levin, and Alexei Y. Rozanov. SPIE, 2011. http://dx.doi.org/10.1117/12.899541.
Full textReports on the topic "Raman Laser Spectrometer (RLS)"
Benn, D., R. Linnen, and T. Martins. Evaluating white mica as an indicator mineral for lithium bearing pegmatites, Wekusko Lake pegmatite field, Manitoba, Canada. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328982.
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