Laser Raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy
This article was published in the Journal of Spectroscopy [© 2015 Hindawi Publishing Corporation] and the definite version is available at : 10.1155/2015/895317
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10361-80062017-04-17T04:59:22Z Laser Raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy Wahadoszamen, Md Haider, A F M Yusuf Rahaman, Arifur Hoque, Nabil Md. Rakinul Talukder, Aminul I Abedin, Kazi Monowar Department of Mathematics and Natural Sciences, BRAC University Argon lasers Fluorescence Metal nanoparticles Nanoparticles Raman spectroscopy Signal detection Silver Spectrometers This article was published in the Journal of Spectroscopy [© 2015 Hindawi Publishing Corporation] and the definite version is available at : 10.1155/2015/895317 A dispersive Raman spectrometer was used with three different excitation sources (Argon-ion, He-Ne, and Diode lasers operating at 514.5 nm, 633 nm, and 782 nm, resp.). The system was employed to a variety of Raman active compounds. Many of the compounds exhibit very strong fluorescence while being excited with a laser emitting at UV-VIS region, hereby imposing severe limitation to the detection efficiency of the particular Raman system. The Raman system with variable excitation laser sources provided us with a desired flexibility toward the suppression of unwanted fluorescence signal. With this Raman system, we could detect and specify the different vibrational modes of various hazardous organic compounds and some typical dyes (both fluorescent and nonfluorescent). We then compared those results with the ones reported in literature and found the deviation within the range of ±2 cm-1, which indicates reasonable accuracy and usability of the Raman system. Then, the surface enhancement technique of Raman spectrum was employed to the present system. To this end, we used chemically prepared colloidal suspension of silver nanoparticles as substrate and Rhodamine 6G as probe. We could observe significant enhancement of Raman signal from Rhodamine 6G using the colloidal solution of silver nanoparticles the average magnitude of which is estimated to be 103. Published 2017-04-09T08:52:11Z 2017-04-09T08:52:11Z 2015 Article Wahadoszamen, M., Rahaman, A., Hoque, N. M. R., I Talukder, A., Abedin, K. M., & Haider, A. F. M. Y. (2015). Laser raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy. Journal of Spectroscopy, 2015 doi:10.1155/2015/895317 23144920 http://hdl.handle.net/10361/8006 en https://www.hindawi.com/journals/jspec/2015/895317/ © 2015 Hindawi Publishing Corporation |
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Brac University |
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Institutional Repository |
language |
English |
topic |
Argon lasers Fluorescence Metal nanoparticles Nanoparticles Raman spectroscopy Signal detection Silver Spectrometers |
spellingShingle |
Argon lasers Fluorescence Metal nanoparticles Nanoparticles Raman spectroscopy Signal detection Silver Spectrometers Wahadoszamen, Md Haider, A F M Yusuf Rahaman, Arifur Hoque, Nabil Md. Rakinul Talukder, Aminul I Abedin, Kazi Monowar Laser Raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy |
description |
This article was published in the Journal of Spectroscopy [© 2015 Hindawi Publishing Corporation] and the definite version is available at : 10.1155/2015/895317 |
author2 |
Department of Mathematics and Natural Sciences, BRAC University |
author_facet |
Department of Mathematics and Natural Sciences, BRAC University Wahadoszamen, Md Haider, A F M Yusuf Rahaman, Arifur Hoque, Nabil Md. Rakinul Talukder, Aminul I Abedin, Kazi Monowar |
format |
Article |
author |
Wahadoszamen, Md Haider, A F M Yusuf Rahaman, Arifur Hoque, Nabil Md. Rakinul Talukder, Aminul I Abedin, Kazi Monowar |
author_sort |
Wahadoszamen, Md |
title |
Laser Raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy |
title_short |
Laser Raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy |
title_full |
Laser Raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy |
title_fullStr |
Laser Raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy |
title_full_unstemmed |
Laser Raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy |
title_sort |
laser raman spectroscopy with different excitation sources and extension to surface enhanced raman spectroscopy |
publisher |
© 2015 Hindawi Publishing Corporation |
publishDate |
2017 |
url |
http://hdl.handle.net/10361/8006 |
work_keys_str_mv |
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