DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples
Spectral depth-profiling of optically turbid samples is of high interest to a broad range of applications. We present a method for measuring spatially-offset Raman spectroscopy (SORS) over a range of length scales by incorporating a digital micro-mirror device (DMD) into a sample-conjugate plane in...
| Main Authors: | , , , , |
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| Format: | Article |
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Optical Society of America
2016
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| Online Access: | https://eprints.nottingham.ac.uk/32974/ |
| _version_ | 1848794531904880640 |
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| author | Liao, Zhiyu Sinjab, Faris Gibson, Graham Padgett, Miles Notingher, Ioan |
| author_facet | Liao, Zhiyu Sinjab, Faris Gibson, Graham Padgett, Miles Notingher, Ioan |
| author_sort | Liao, Zhiyu |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Spectral depth-profiling of optically turbid samples is of high interest to a broad range of applications. We present a method for measuring spatially-offset Raman spectroscopy (SORS) over a range of length scales by incorporating a digital micro-mirror device (DMD) into a sample-conjugate plane in the detection optical path. The DMD can be arbitrarily programmed to collect/reject light at spatial positions in the 2D sample-conjugate plane, allowing spatially offset Raman measurements. We demonstrate several detection geometries, including annular and simultaneous multi-offset modalities, for both macro- and micro-SORS measurements, all on the same instrument. Compared to other SORS modalities, DMD-based SORS provides more flexibility with only minimal additional experimental complexity for subsurface Raman collection. |
| first_indexed | 2025-11-14T19:17:41Z |
| format | Article |
| id | nottingham-32974 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:17:41Z |
| publishDate | 2016 |
| publisher | Optical Society of America |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-329742020-05-04T17:41:13Z https://eprints.nottingham.ac.uk/32974/ DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples Liao, Zhiyu Sinjab, Faris Gibson, Graham Padgett, Miles Notingher, Ioan Spectral depth-profiling of optically turbid samples is of high interest to a broad range of applications. We present a method for measuring spatially-offset Raman spectroscopy (SORS) over a range of length scales by incorporating a digital micro-mirror device (DMD) into a sample-conjugate plane in the detection optical path. The DMD can be arbitrarily programmed to collect/reject light at spatial positions in the 2D sample-conjugate plane, allowing spatially offset Raman measurements. We demonstrate several detection geometries, including annular and simultaneous multi-offset modalities, for both macro- and micro-SORS measurements, all on the same instrument. Compared to other SORS modalities, DMD-based SORS provides more flexibility with only minimal additional experimental complexity for subsurface Raman collection. Optical Society of America 2016-03-20 Article PeerReviewed Liao, Zhiyu, Sinjab, Faris, Gibson, Graham, Padgett, Miles and Notingher, Ioan (2016) DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples. Optics Express . ISSN 1094-4087 (In Press) |
| spellingShingle | Liao, Zhiyu Sinjab, Faris Gibson, Graham Padgett, Miles Notingher, Ioan DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples |
| title | DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples |
| title_full | DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples |
| title_fullStr | DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples |
| title_full_unstemmed | DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples |
| title_short | DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples |
| title_sort | dmd-based software-configurable spatially-offset raman spectroscopy for spectral depth-profiling of optically turbid samples |
| url | https://eprints.nottingham.ac.uk/32974/ |