Low-Threshold Surface-Emitting Whispering-Gallery Mode Microlasers
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arXiv
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| Autores principales: | , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| author | Babichev, Andrey Makhov, Ivan Kryzhanovskaya, Natalia Troshkov, Sergey Zadiranov, Yuriy Salii, Yulia Kulagina, Marina Bobrov, Mikhail Vasilev, Alexey Blokhin, Sergey Maleev, Nikolay Karachinsky, Leonid Novikov, Innokenty Egorov, Anton |
| author_facet | Babichev, Andrey Makhov, Ivan Kryzhanovskaya, Natalia Troshkov, Sergey Zadiranov, Yuriy Salii, Yulia Kulagina, Marina Bobrov, Mikhail Vasilev, Alexey Blokhin, Sergey Maleev, Nikolay Karachinsky, Leonid Novikov, Innokenty Egorov, Anton |
| contents | We report on microlasers based on high-quality micropillars with lasing on whispering-gallery modes. Usage of low-absorbing Al$\scriptsize 0.2$Ga$\scriptsize 0.8$As\Al$\scriptsize 0.9$Ga$\scriptsize 0.1$As distributed Bragg reflectors as well as the smooth pillar sidewalls allows us to realize whispering-gallery modes lasing by excitation and collection of emission in the pillar axis direction. As a result, simultaneous whispering gallery modes lasing (comb-like structure) in the wavelength range of 930-970 nm is observed for 3-7 $μ$m pillar diameters. Increase the temperature up to 130 K results single-mode lasing for 5 $μ$m pillars with about 8000 cold cavity quality-factor and 240 $μ$W estimated threshold excitation power. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_02196 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Low-Threshold Surface-Emitting Whispering-Gallery Mode Microlasers Babichev, Andrey Makhov, Ivan Kryzhanovskaya, Natalia Troshkov, Sergey Zadiranov, Yuriy Salii, Yulia Kulagina, Marina Bobrov, Mikhail Vasilev, Alexey Blokhin, Sergey Maleev, Nikolay Karachinsky, Leonid Novikov, Innokenty Egorov, Anton Mesoscale and Nanoscale Physics Optics We report on microlasers based on high-quality micropillars with lasing on whispering-gallery modes. Usage of low-absorbing Al$\scriptsize 0.2$Ga$\scriptsize 0.8$As\Al$\scriptsize 0.9$Ga$\scriptsize 0.1$As distributed Bragg reflectors as well as the smooth pillar sidewalls allows us to realize whispering-gallery modes lasing by excitation and collection of emission in the pillar axis direction. As a result, simultaneous whispering gallery modes lasing (comb-like structure) in the wavelength range of 930-970 nm is observed for 3-7 $μ$m pillar diameters. Increase the temperature up to 130 K results single-mode lasing for 5 $μ$m pillars with about 8000 cold cavity quality-factor and 240 $μ$W estimated threshold excitation power. |
| title | Low-Threshold Surface-Emitting Whispering-Gallery Mode Microlasers |
| topic | Mesoscale and Nanoscale Physics Optics |
| url | https://arxiv.org/abs/2407.02196 |