Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy
Abstract Raising the interest in remote chemical analysis, in particular through Raman and fluorescence spectroscopy, the opportunity of increasing the exposure represents an important step for an easier and more reliable spectrum analysis. However, the European directive 2006/25/EC defines the maxi...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2019-03-01
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| Series: | Journal of the European Optical Society-Rapid Publications |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s41476-019-0099-y |
| _version_ | 1819125493180399616 |
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| author | Federico Angelini Francesco Colao |
| author_facet | Federico Angelini Francesco Colao |
| author_sort | Federico Angelini |
| collection | DOAJ |
| description | Abstract Raising the interest in remote chemical analysis, in particular through Raman and fluorescence spectroscopy, the opportunity of increasing the exposure represents an important step for an easier and more reliable spectrum analysis. However, the European directive 2006/25/EC defines the maximum permitted exposure (MPE) to artificial radiations according to exposure duration, wavelength, coherence of the radiation and beam divergence. Though the Raman cross section scales in general according to the fourth power of the excitation wavelength, promoting the use of deep UV radiation, a synergy between wavelength and exposure time can raise the Raman signal in the near UV or in the near IR if compliance to eye-safety directives is requested. In this work we will analyze the possibilities offered by commercially available components for enhancing the Raman scattering under eye-safe conditions. |
| first_indexed | 2024-12-22T07:41:01Z |
| format | Article |
| id | doaj.art-f1d1582289034ad8bb6d6c3d07a693fa |
| institution | Directory Open Access Journal |
| issn | 1990-2573 |
| language | English |
| last_indexed | 2024-12-22T07:41:01Z |
| publishDate | 2019-03-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Journal of the European Optical Society-Rapid Publications |
| spelling | doaj.art-f1d1582289034ad8bb6d6c3d07a693fa2022-12-21T18:33:45ZengEDP SciencesJournal of the European Optical Society-Rapid Publications1990-25732019-03-011511810.1186/s41476-019-0099-yOptimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopyFederico Angelini0Francesco Colao1ENEA FSN-TECFIS-DIMENEA FSN-TECFIS-DIMAbstract Raising the interest in remote chemical analysis, in particular through Raman and fluorescence spectroscopy, the opportunity of increasing the exposure represents an important step for an easier and more reliable spectrum analysis. However, the European directive 2006/25/EC defines the maximum permitted exposure (MPE) to artificial radiations according to exposure duration, wavelength, coherence of the radiation and beam divergence. Though the Raman cross section scales in general according to the fourth power of the excitation wavelength, promoting the use of deep UV radiation, a synergy between wavelength and exposure time can raise the Raman signal in the near UV or in the near IR if compliance to eye-safety directives is requested. In this work we will analyze the possibilities offered by commercially available components for enhancing the Raman scattering under eye-safe conditions.http://link.springer.com/article/10.1186/s41476-019-0099-yRaman spectroscopyStandoff identificationSafety directivesLaser exposureEye-safe |
| spellingShingle | Federico Angelini Francesco Colao Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy Journal of the European Optical Society-Rapid Publications Raman spectroscopy Standoff identification Safety directives Laser exposure Eye-safe |
| title | Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy |
| title_full | Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy |
| title_fullStr | Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy |
| title_full_unstemmed | Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy |
| title_short | Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy |
| title_sort | optimization of laser wavelength power and pulse duration for eye safe raman spectroscopy |
| topic | Raman spectroscopy Standoff identification Safety directives Laser exposure Eye-safe |
| url | http://link.springer.com/article/10.1186/s41476-019-0099-y |
| work_keys_str_mv | AT federicoangelini optimizationoflaserwavelengthpowerandpulsedurationforeyesaferamanspectroscopy AT francescocolao optimizationoflaserwavelengthpowerandpulsedurationforeyesaferamanspectroscopy |