Raman and Photoluminescence Spectroscopy with a Variable Spectral Resolution
Raman and photoluminescence (PL) spectroscopy are important analytic tools in materials science that yield information on molecules’ and crystals’ vibrational and electronic properties. Here, we show results of a novel approach for Raman and PL spectroscopy to exploit variable spectral resolution by...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/23/7951 |
| _version_ | 1797507210409934848 |
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| author | Ivan Pavić Joško Šoda Vlatko Gašparić Mile Ivanda |
| author_facet | Ivan Pavić Joško Šoda Vlatko Gašparić Mile Ivanda |
| author_sort | Ivan Pavić |
| collection | DOAJ |
| description | Raman and photoluminescence (PL) spectroscopy are important analytic tools in materials science that yield information on molecules’ and crystals’ vibrational and electronic properties. Here, we show results of a novel approach for Raman and PL spectroscopy to exploit variable spectral resolution by using zoom optics in a monochromator in the front of the detector. Our results show that the spectral intervals of interest can be recorded with different zoom factors, significantly reducing the acquisition time and changing the spectral resolution for different zoom factors. The smallest spectral intervals recorded at the maximum zoom factor yield higher spectral resolution suitable for Raman spectra. In contrast, larger spectral intervals recorded at the minimum zoom factor yield the lowest spectral resolution suitable for luminescence spectra. We have demonstrated the change in spectral resolution by zoom objective with a zoom factor of 6, but the perspective of such an approach is up to a zoom factor of 20. We have compared such an approach on the prototype Raman spectrometer with the high quality commercial one. The comparison was made on ZrO<sub>2</sub> and TiO<sub>2</sub> nanocrystals for Raman scattering and Al<sub>2</sub>O<sub>3</sub> for PL emission recording. Beside demonstrating that Raman spectrometer can be used for PL and Raman spectroscopy without changing of grating, our results show that such a spectrometer could be an efficient and fast tool in searching for Raman and PL bands of unknown materials and, thereafter, spectral recording of the spectral interval of interest at an appropriate spectral resolution. |
| first_indexed | 2024-03-10T04:45:18Z |
| format | Article |
| id | doaj.art-47116d1316734ff6adb8384307df0613 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T04:45:18Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-47116d1316734ff6adb8384307df06132023-11-23T03:01:40ZengMDPI AGSensors1424-82202021-11-012123795110.3390/s21237951Raman and Photoluminescence Spectroscopy with a Variable Spectral ResolutionIvan Pavić0Joško Šoda1Vlatko Gašparić2Mile Ivanda3Department for Marine Electrical Engineering and Information Technologies, Faculty of Maritime Studies, Ruđera Boškovića 37, 21000 Split, CroatiaDepartment for Marine Electrical Engineering and Information Technologies, Faculty of Maritime Studies, Ruđera Boškovića 37, 21000 Split, CroatiaLaboratory for Molecular Physics and Synthesis of New Materials, Ruđer Bošković Institute, Bijenička Cestra 54, 10000 Zagreb, CroatiaLaboratory for Molecular Physics and Synthesis of New Materials, Ruđer Bošković Institute, Bijenička Cestra 54, 10000 Zagreb, CroatiaRaman and photoluminescence (PL) spectroscopy are important analytic tools in materials science that yield information on molecules’ and crystals’ vibrational and electronic properties. Here, we show results of a novel approach for Raman and PL spectroscopy to exploit variable spectral resolution by using zoom optics in a monochromator in the front of the detector. Our results show that the spectral intervals of interest can be recorded with different zoom factors, significantly reducing the acquisition time and changing the spectral resolution for different zoom factors. The smallest spectral intervals recorded at the maximum zoom factor yield higher spectral resolution suitable for Raman spectra. In contrast, larger spectral intervals recorded at the minimum zoom factor yield the lowest spectral resolution suitable for luminescence spectra. We have demonstrated the change in spectral resolution by zoom objective with a zoom factor of 6, but the perspective of such an approach is up to a zoom factor of 20. We have compared such an approach on the prototype Raman spectrometer with the high quality commercial one. The comparison was made on ZrO<sub>2</sub> and TiO<sub>2</sub> nanocrystals for Raman scattering and Al<sub>2</sub>O<sub>3</sub> for PL emission recording. Beside demonstrating that Raman spectrometer can be used for PL and Raman spectroscopy without changing of grating, our results show that such a spectrometer could be an efficient and fast tool in searching for Raman and PL bands of unknown materials and, thereafter, spectral recording of the spectral interval of interest at an appropriate spectral resolution.https://www.mdpi.com/1424-8220/21/23/7951Raman spectrometerphotoluminescencespectral resolutionzoom lens |
| spellingShingle | Ivan Pavić Joško Šoda Vlatko Gašparić Mile Ivanda Raman and Photoluminescence Spectroscopy with a Variable Spectral Resolution Sensors Raman spectrometer photoluminescence spectral resolution zoom lens |
| title | Raman and Photoluminescence Spectroscopy with a Variable Spectral Resolution |
| title_full | Raman and Photoluminescence Spectroscopy with a Variable Spectral Resolution |
| title_fullStr | Raman and Photoluminescence Spectroscopy with a Variable Spectral Resolution |
| title_full_unstemmed | Raman and Photoluminescence Spectroscopy with a Variable Spectral Resolution |
| title_short | Raman and Photoluminescence Spectroscopy with a Variable Spectral Resolution |
| title_sort | raman and photoluminescence spectroscopy with a variable spectral resolution |
| topic | Raman spectrometer photoluminescence spectral resolution zoom lens |
| url | https://www.mdpi.com/1424-8220/21/23/7951 |
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