Angular Spectra Tunable Random Lasing for High Contrast Imaging
Abstract Random lasers with low spatial coherence have important potential applications in speckle‐free imaging and displaying. Here, an angular spectra (AS) tunable random laser is proposed through directly coupling a microcavity with a commercial optical fiber. The local in‐plane AS distributions...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-03-01
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| Series: | Advanced Physics Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/apxr.202200054 |
| _version_ | 1797775113269018624 |
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| author | Huihui Shen Hongyu Yuan Yaoxing Bian Junyan Li Weinian Liu Hanyi Xue Zhaona Wang |
| author_facet | Huihui Shen Hongyu Yuan Yaoxing Bian Junyan Li Weinian Liu Hanyi Xue Zhaona Wang |
| author_sort | Huihui Shen |
| collection | DOAJ |
| description | Abstract Random lasers with low spatial coherence have important potential applications in speckle‐free imaging and displaying. Here, an angular spectra (AS) tunable random laser is proposed through directly coupling a microcavity with a commercial optical fiber. The local in‐plane AS distributions of the random lasing can be separately tuned by selectively using coupling filtering, free transmission, and intensity modulation. The obtained random lasing has the characteristics of non‐polarization and ring AS with distribution tunability. The unique properties endow the lasing as a promising illumination source for biological imaging. An excellent image with speckle‐free and high contrast is thus achieved with a maximal contrast improvement factor of 638% relative to that under the common white lighting. The results indicate that the designed AS‐tunable random laser has great application values in the fields of biological imaging, display, integration optics, and optical physics. |
| first_indexed | 2024-03-12T22:29:59Z |
| format | Article |
| id | doaj.art-d96aec654e0d4e3a995f667b3a2b466d |
| institution | Directory Open Access Journal |
| issn | 2751-1200 |
| language | English |
| last_indexed | 2024-03-12T22:29:59Z |
| publishDate | 2023-03-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Physics Research |
| spelling | doaj.art-d96aec654e0d4e3a995f667b3a2b466d2023-07-21T15:30:26ZengWiley-VCHAdvanced Physics Research2751-12002023-03-0123n/an/a10.1002/apxr.202200054Angular Spectra Tunable Random Lasing for High Contrast ImagingHuihui Shen0Hongyu Yuan1Yaoxing Bian2Junyan Li3Weinian Liu4Hanyi Xue5Zhaona Wang6Department of Physics Applied Optics Beijing Area Major Laboratory Beijing Normal University Beijing 100875 ChinaDepartment of Physics Applied Optics Beijing Area Major Laboratory Beijing Normal University Beijing 100875 ChinaDepartment of Physics Applied Optics Beijing Area Major Laboratory Beijing Normal University Beijing 100875 ChinaDepartment of Physics Applied Optics Beijing Area Major Laboratory Beijing Normal University Beijing 100875 ChinaDepartment of Physics Applied Optics Beijing Area Major Laboratory Beijing Normal University Beijing 100875 ChinaDepartment of Physics Applied Optics Beijing Area Major Laboratory Beijing Normal University Beijing 100875 ChinaDepartment of Physics Applied Optics Beijing Area Major Laboratory Beijing Normal University Beijing 100875 ChinaAbstract Random lasers with low spatial coherence have important potential applications in speckle‐free imaging and displaying. Here, an angular spectra (AS) tunable random laser is proposed through directly coupling a microcavity with a commercial optical fiber. The local in‐plane AS distributions of the random lasing can be separately tuned by selectively using coupling filtering, free transmission, and intensity modulation. The obtained random lasing has the characteristics of non‐polarization and ring AS with distribution tunability. The unique properties endow the lasing as a promising illumination source for biological imaging. An excellent image with speckle‐free and high contrast is thus achieved with a maximal contrast improvement factor of 638% relative to that under the common white lighting. The results indicate that the designed AS‐tunable random laser has great application values in the fields of biological imaging, display, integration optics, and optical physics.https://doi.org/10.1002/apxr.202200054random lasingangular spectra tunableimage contrastspeckle freerandom laser |
| spellingShingle | Huihui Shen Hongyu Yuan Yaoxing Bian Junyan Li Weinian Liu Hanyi Xue Zhaona Wang Angular Spectra Tunable Random Lasing for High Contrast Imaging Advanced Physics Research random lasing angular spectra tunable image contrast speckle free random laser |
| title | Angular Spectra Tunable Random Lasing for High Contrast Imaging |
| title_full | Angular Spectra Tunable Random Lasing for High Contrast Imaging |
| title_fullStr | Angular Spectra Tunable Random Lasing for High Contrast Imaging |
| title_full_unstemmed | Angular Spectra Tunable Random Lasing for High Contrast Imaging |
| title_short | Angular Spectra Tunable Random Lasing for High Contrast Imaging |
| title_sort | angular spectra tunable random lasing for high contrast imaging |
| topic | random lasing angular spectra tunable image contrast speckle free random laser |
| url | https://doi.org/10.1002/apxr.202200054 |
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