Journal
OPTICS LETTERS
Volume 43, Issue 3, Pages 611-614Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.43.000611
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Funding
- Directorate for Engineering (ENG) [CBET-1606141, ECCS-0955027]
- Welch Foundation [AT-1617]
- Texas Photonics Center
- UT Dallas Faculty Start-up Fund
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We report a directly patterned perovskite distributed feedback (DFB) resonator and show narrow amplified spontaneous emission (ASE) at pump powers as low as 0.1 W/cm(2) under continuous-wave (CW) optical pumping conditions at room temperature. Compared to the pristine thin film photoluminescence spectrum, a 16-fold reduction in emission linewidth in the MAPbI(3) DFB cavity was observed. The direct nanostructuring of perovskites was achieved by thermal nanoimprint lithography. Our findings pave the way toward realizing CW pumped perovskite lasers at room temperature and energy-efficient perovskite light sources. (C) 2018 Optical Society of America
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