Fast Gating for Raman Spectroscopy
Fast gating in Raman spectroscopy is used to reject the fluorescence contribution from the sample and/or the substrate. Several techniques have been set up in the last few decades aiming either to enhance the Raman signal (CARS, SERS or Resonant Raman scattering) or to cancel out the fluorescence co...
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| Format: | Article |
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MDPI AG
2021-04-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/8/2579 |
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| author | Andrea Chiuri Federico Angelini |
| author_facet | Andrea Chiuri Federico Angelini |
| author_sort | Andrea Chiuri |
| collection | DOAJ |
| description | Fast gating in Raman spectroscopy is used to reject the fluorescence contribution from the sample and/or the substrate. Several techniques have been set up in the last few decades aiming either to enhance the Raman signal (CARS, SERS or Resonant Raman scattering) or to cancel out the fluorescence contribution (SERDS), and a number of reviews have already been published on these sub-topics. However, for many reasons it is sometimes necessary to reject fluorescence in traditional Raman spectroscopy, and in the last few decades a variety of papers dealt with this issue, which is still challenging due to the time scales at stake (down to picoseconds). Fast gating (<1 ns) in the time domain allows one to cut off part of the fluorescence signal and retrieve the best Raman signal, depending on the fluorescence lifetime of the sample and laser pulse duration. In particular, three different techniques have been developed to accomplish this task: optical Kerr cells, intensified Charge Coupling Devices and systems based on Single Photon Avalanche Photodiodes. The utility of time domain fast gating will be discussed, and In this work, the utility of time domain fast gating is discussed, as well as the performances of the mentioned techniques as reported in literature. |
| first_indexed | 2024-03-10T12:32:45Z |
| format | Article |
| id | doaj.art-46a85e8bc9d84f30b4ac07c84e0e7177 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T12:32:45Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-46a85e8bc9d84f30b4ac07c84e0e71772023-11-21T14:28:53ZengMDPI AGSensors1424-82202021-04-01218257910.3390/s21082579Fast Gating for Raman SpectroscopyAndrea Chiuri0Federico Angelini1Diagnostic and Metrology Laboratory, FSN-TECFIS-DIM Nuclear Fusion and Safety Technologies Department, ENEA Via Enrico Fermi 45, 00044 Frascati, ItalyDiagnostic and Metrology Laboratory, FSN-TECFIS-DIM Nuclear Fusion and Safety Technologies Department, ENEA Via Enrico Fermi 45, 00044 Frascati, ItalyFast gating in Raman spectroscopy is used to reject the fluorescence contribution from the sample and/or the substrate. Several techniques have been set up in the last few decades aiming either to enhance the Raman signal (CARS, SERS or Resonant Raman scattering) or to cancel out the fluorescence contribution (SERDS), and a number of reviews have already been published on these sub-topics. However, for many reasons it is sometimes necessary to reject fluorescence in traditional Raman spectroscopy, and in the last few decades a variety of papers dealt with this issue, which is still challenging due to the time scales at stake (down to picoseconds). Fast gating (<1 ns) in the time domain allows one to cut off part of the fluorescence signal and retrieve the best Raman signal, depending on the fluorescence lifetime of the sample and laser pulse duration. In particular, three different techniques have been developed to accomplish this task: optical Kerr cells, intensified Charge Coupling Devices and systems based on Single Photon Avalanche Photodiodes. The utility of time domain fast gating will be discussed, and In this work, the utility of time domain fast gating is discussed, as well as the performances of the mentioned techniques as reported in literature.https://www.mdpi.com/1424-8220/21/8/2579time-gatingRamanICCDKerrSPAD |
| spellingShingle | Andrea Chiuri Federico Angelini Fast Gating for Raman Spectroscopy Sensors time-gating Raman ICCD Kerr SPAD |
| title | Fast Gating for Raman Spectroscopy |
| title_full | Fast Gating for Raman Spectroscopy |
| title_fullStr | Fast Gating for Raman Spectroscopy |
| title_full_unstemmed | Fast Gating for Raman Spectroscopy |
| title_short | Fast Gating for Raman Spectroscopy |
| title_sort | fast gating for raman spectroscopy |
| topic | time-gating Raman ICCD Kerr SPAD |
| url | https://www.mdpi.com/1424-8220/21/8/2579 |
| work_keys_str_mv | AT andreachiuri fastgatingforramanspectroscopy AT federicoangelini fastgatingforramanspectroscopy |