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- W3127799430 endingPage "2006819" @default.
- W3127799430 startingPage "2006819" @default.
- W3127799430 abstract "Continuous-wave (CW) room-temperature (RT) laser operation with low energy consumption is an ultimate goal for electrically driven lasers. A monolithically integrated perovskite laser in a chip-level fiber scheme is ideal. However, because of the well-recognized air and thermal instabilities of perovskites, laser action in a perovskite has mostly been limited to either pulsed or cryogenic-temperature operations. Most CW laser operations at RT have had poor durability. Here, crystal fibers that have robust and high-heat-load nature are shown to be the key to enabling the first demonstration of ultralow-threshold CW RT laser action in a compact, monolithic, and inexpensive crystal fiber/nanoperovskite hybrid architecture that is directly pumped with a 405 nm diode laser. Purcell-enhanced light–matter coupling between the atomically smooth fiber microcavity and the perovskite nanocrystallites gain medium enables a high Q (≈1500) and a high β (0.31). This 762 nm laser outperforms previously reported structures with a record-low threshold of 132 nW and an optical-to-optical slope conversion efficiency of 2.93%, and it delivers a stable output for CW and RT operation. These results represent a significant advancement toward monolithic all-optical integration." @default.
- W3127799430 created "2021-02-15" @default.
- W3127799430 creator A5030151872 @default.
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- W3127799430 date "2021-02-11" @default.
- W3127799430 modified "2023-10-08" @default.
- W3127799430 title "Ultralow‐Threshold Continuous‐Wave Room‐Temperature Crystal‐Fiber/Nanoperovskite Hybrid Lasers for All‐Optical Photonic Integration" @default.
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- W3127799430 doi "https://doi.org/10.1002/adma.202006819" @default.
- W3127799430 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33576143" @default.
- W3127799430 hasPublicationYear "2021" @default.
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