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Experimental observation of above billion quality factor in silicon crystalline optical whispering gallery mode resonatorsдоклад на конференции
- Авторы: Shitikov Artem E., Lobanov Valery E., Gorodetsky Michael L., Voloshin Andrey S., Bilenko Igor A., Kondratiev Nikita M.
- Международная Конференция : SPIE Photonics West
- Даты проведения конференции: 2-7 февраля 2019
- Дата доклада: 4 февраля 2019
- Тип доклада: Устный
- Докладчик: не указан
- Место проведения: San Francisco, США
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Аннотация доклада:
Silicon is a widely used material in modern microelectronics and photonics. Extremely low optical losses in near and mid-IR wavelengths made it a promising material for whispering gallery mode (WGM) optical micro-resonators. But, till now its potential was not fully utilized because of the best-obtained quality factor - about 2 x 10^7 - remained orders of magnitude below the material absorption limit. In this work we experimentally demonstrated a quality factor above 10^9 for the WGM in millimetres size crystalline silicon resonators. Materials with different residual conductivity were compared. Application of original semi-spherical silicon coupler allowed to obtain up to 35% resonance peaks contrast.
- Добавил в систему: Шитиков Артем Евгеньевич