Low-Threshold Whispering Gallery Mode Lasing from Self-Assembled Microspheres of Single-Sort Conjugated Polymers

2017 ◽  
Vol 5 (10) ◽  
pp. 1700123 ◽  
Author(s):  
Soh Kushida ◽  
Daichi Okada ◽  
Fumio Sasaki ◽  
Zhan-Hong Lin ◽  
Jer-Shing Huang ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Whispering Gallery Mode ◽  
Whispering Gallery ◽  
Low Threshold ◽  
Self Assembled

Whispering Gallery Resonance from Self-Assembled Microspheres of Highly Fluorescent Isolated Conjugated Polymers

2015 ◽  
Vol 48 (12) ◽  
pp. 3928-3933 ◽  
Author(s):  
Soh Kushida ◽  
Daniel Braam ◽  
Chengjun Pan ◽  
Thang D. Dao ◽  
Kenichi Tabata ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Whispering Gallery ◽  
Self Assembled

Solution-processed whispering-gallery-mode microsphere lasers based on colloidal CsPbBr3 perovskite nanocrystals

2021 ◽  
Author(s):  
Minghong Xie ◽  
Wenxiao Gong ◽  
Lei Kong ◽  
Yang Liu ◽  
Yang Mi ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Single Mode ◽  
Whispering Gallery Mode ◽  
Solution Processed ◽  
Time Resolved ◽  
Perovskite Nanocrystals ◽  
Whispering Gallery ◽  
Low Threshold ◽  
The Stability

Abstract Perovskite nanocrystals (NCs) have emerged as attractive gain materials for solution-processed microlasers. Despite the recent surge of reports in this feld, it is still challenging to develop low-cost perovskite NCbased microlasers with high performance. Herein, we demonstrate low-threshold, spectrally tunable lasing from ensembles of CsPbBr3 NCs deposited on silica microspheres. Multiple whispering-gallery-mode lasing is achieved from individual NC/microspheres with a low threshold of ∼3.1 µJ cm−2 and cavity quality factor of ∼1193. Through time-resolved photoluminescence measurements, electron-hole plasma recombination is elucidated as the lasing mechanism. By tuning the microsphere diameter, the desirable single-mode lasing is successfully achieved. Remarkably, the CsPbBr3 NCs display durable room-temperature lasing under ∼107 shots of pulsed laser excitation, substantially exceeding the stability of conventional colloidal NCs. These CsPbBr3 NC-based microlasers can be potentially useful in photonic applications.

Controlled Outcoupling of Whispering-Gallery-Mode Lasers Based on Self-Assembled Organic Single-Crystalline Microrings

Nano Letters ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 1098-1103 ◽  
Author(s):  
Yuanchao Lv ◽  
Xiao Xiong ◽  
Yingying Liu ◽  
Jiannian Yao ◽  
Yong Jun Li ◽  
...  
Keyword(s):  
Whispering Gallery Mode ◽  
Single Crystalline ◽  
Whispering Gallery ◽  
Self Assembled

Label-Free Pb(II) Whispering Gallery Mode Sensing Using Self-Assembled Glutathione-Modified Gold Nanoparticles on an Optical Microcavity

2014 ◽  
Vol 86 (13) ◽  
pp. 6299-6306 ◽  
Author(s):  
Sirirat Panich ◽  
Kerry A. Wilson ◽  
Philippa Nuttall ◽  
Christopher K. Wood ◽  
Tim Albrecht ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Whispering Gallery Mode ◽  
Label Free ◽  
Optical Microcavity ◽  
Whispering Gallery ◽  
Self Assembled

Polydimethylsiloxane self-assembled whispering gallery mode microbottle resonator for ethanol sensing

2020 ◽  
Vol 107 ◽  
pp. 110024 ◽  
Author(s):  
Naisi Zhu ◽  
Bufan Shi ◽  
Yuyang Guo ◽  
Bo Han ◽  
Ya-nan Zhang
Keyword(s):  
Whispering Gallery Mode ◽  
Whispering Gallery ◽  
Self Assembled ◽  
Ethanol Sensing

High‐Quality Hexagonal Nonlayered CdS Nanoplatelets for Low‐Threshold Whispering‐Gallery‐Mode Lasing

Small ◽  
2019 ◽  
Vol 15 (35) ◽  
pp. 1901364 ◽  
Author(s):  
Yang Mi ◽  
Bao Jin ◽  
Liyun Zhao ◽  
Jie Chen ◽  
Shuai Zhang ◽  
...  
Keyword(s):  
Whispering Gallery Mode ◽  
High Quality ◽  
Whispering Gallery ◽  
Low Threshold

scholarly journals Self-assembled polycarbazole microspheres as single-component, white-colour resonant photoemitters

RSC Advances ◽  
2016 ◽  
Vol 6 (58) ◽  
pp. 52854-52857 ◽  
Author(s):  
Soh Kushida ◽  
Shinnosuke Okabe ◽  
Thang D. Dao ◽  
Satoshi Ishii ◽  
Tadaaki Nagao ◽  
...  
Keyword(s):  
Spectral Range ◽  
Whispering Gallery Mode ◽  
Visible Spectral Range ◽  
Single Component ◽  
Whispering Gallery ◽  
Self Assembled ◽  
White Colour

Self-assembled polycarbazole microspheres exhibit white-colour whispering gallery mode photoluminescence from the whole visible spectral range.

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