Ultralow‐Threshold and High‐Quality Whispering‐Gallery‐Mode Lasing from Colloidal Core/Hybrid‐Shell Quantum Wells

We have achieved single-mode whispering-gallery-mode lasing in CdS microflakes with sharp linewidth (∼0.12 nm) and high quality factor (∼4200). Such lasers are superior to previous CdS lasers in these lasing parameters. Through time-resolved photoluminescence measurements, electron–hole plasma recombination is established to be the lasing mechanism. The radiative recombination rate of CdS microflakes is enhanced by a factor of ∼4.7 due to the Purcell effect.

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High quality two-photon pumped whispering-gallery-mode lasing from ultrathin CdS microflakes

Journal of Materials Chemistry C ◽

10.1039/c9tc02640a ◽

2019 ◽

Vol 7 (41) ◽

pp. 12869-12875 ◽

Cited By ~ 4

Author(s):

Liyun Zhao ◽

Qiuyu Shang ◽

Yan Gao ◽

Bao Jin ◽

Tianyou Zhai ◽

...

Keyword(s):

Cadmium Sulfide ◽

Room Temperature ◽

Whispering Gallery Mode ◽

High Quality ◽

Green Color ◽

Whispering Gallery ◽

Two Photon

Room temperature two-photon pumped green-color whispering-gallery-mode lasing from cadmium sulfide microflakes with dimensions below 60 nm.

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High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets

Advanced Functional Materials ◽

10.1002/adfm.201601690 ◽

2016 ◽

Vol 26 (34) ◽

pp. 6238-6245 ◽

Cited By ~ 294

Author(s):

Qing Zhang ◽

Rui Su ◽

Xinfeng Liu ◽

Jun Xing ◽

Tze Chien Sum ◽

...

Keyword(s):

Whispering Gallery Mode ◽

High Quality ◽

Whispering Gallery ◽

Halide Perovskite ◽

Lead Halide

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

Small ◽

10.1002/smll.201901364 ◽

2019 ◽

Vol 15 (35) ◽

pp. 1901364 ◽

Cited By ~ 10

Author(s):

Yang Mi ◽

Bao Jin ◽

Liyun Zhao ◽

Jie Chen ◽

Shuai Zhang ◽

...

Keyword(s):

Whispering Gallery Mode ◽

High Quality ◽

Whispering Gallery ◽

Low Threshold

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Design of X-Cut and Z-Cut Lithium Niobate Whispering-Gallery-Mode Disk-Resonators With High Quality Factors

IEEE Photonics Journal ◽

10.1109/jphot.2017.2727286 ◽

2017 ◽

Vol 9 (4) ◽

pp. 1-8 ◽

Cited By ~ 2

Author(s):

Yu Pan ◽

Guoping Lin ◽

Souleymane Diallo ◽

Xianmin Zhang ◽

Yanne K. Chembo

Keyword(s):

Lithium Niobate ◽

Whispering Gallery Mode ◽

Quality Factors ◽

High Quality ◽

Whispering Gallery ◽

Disk Resonators

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Finite element realization of ultra-high quality factor frequency-temperature compensated sapphire-rutile whispering gallery mode resonators

1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282) ◽

10.1109/mwsym.1999.779631 ◽

2003 ◽

Cited By ~ 7

Author(s):

M.E. Tobar ◽

D. Cros ◽

P. Blondy ◽

J.G. Hartnett ◽

P. Guillon

Keyword(s):

Finite Element ◽

Quality Factor ◽

Whispering Gallery Mode ◽

High Quality Factor ◽

High Quality ◽

Whispering Gallery ◽

Factor Frequency ◽

Frequency Temperature

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Fine Temperature Measurement and Fabrication of On-Chip Whispering-Gallery Mode Micro-Sensors

ASME 2013 4th International Conference on Micro/Nanoscale Heat and Mass Transfer ◽

10.1115/mnhmt2013-22003 ◽

2013 ◽

Author(s):

Matthew Frenkel ◽

Marlon Avellan ◽

Zhixiong Guo

Keyword(s):

High Sensitivity ◽

Whispering Gallery Mode ◽

Heat Transfer Analysis ◽

Fabrication Technique ◽

Quality Factors ◽

High Quality ◽

Whispering Gallery ◽

Thermal Measurements ◽

On Chip

Whispering-Gallery mode based optical micro-devices have been demonstrated to have extremely high sensitivity to changes in local temperature owing to their high quality factors and frequency-based measurements. In this paper, we first examine different fabrication techniques for integrating whispering-gallery mode sensors directly onto heating components to realize on-chip in-situ dynamic temperature measurements and monitoring. The merits and drawbacks of each fabrication technique are discussed. Then, the capability of the fabricated on-chip micro-sensors to perform precise real-time thermal measurements was tested, and the findings are discussed. Finally, the advantages of such on-chip sensors are established through heat transfer analysis.

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