Optical switching dynamics of sub-micrometer Sb2Se3 thin films for active photonics
Optical switching dynamics of sub-micrometer Sb2Se3 thin films for active photonics
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用于主动光子学的亚微米 Sb2Se3 薄膜的光学开关动力学
DOI:
10.1117/12.2682125
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Lawson D
中科院分区:
文献类型:
--
作者:
Lawson D
Optical Phase change material (O-PCM) components are rapidly becoming a mainstream implementation for non-volatile active control of photonic integrated circuits, metasurfaces and free-space photonics. In this work we explore the practical limitations of the reversible optical switching of the low-loss antimony-based O-PCM Sb2Se3using a range of static tester and time-resolved techniques and demonstrates cyclability in Sb2Se3beyond 10^6 reversible transitions. We demonstrate that optical pumping at 488nm results in a well-defined depth limit in the crystal to glass transition, which arises from the confinement of the nanosecond thermal excitation in the top region of the Sb2Se3film.