Five-photon absorption upconversion lasing from on-chip whispering gallery mode

Nanoscale ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 6130-6136 ◽  
Author(s):  
Ying Huang ◽  
Hai Zhu ◽  
Huying Zheng ◽  
Ziying Tang ◽  
Jianwen Dong ◽  
...  
Keyword(s):  
Room Temperature ◽  
Whispering Gallery Mode ◽  
Photon Absorption ◽  
Whispering Gallery ◽  
Low Threshold ◽  
On Chip ◽  
First Time

We demonstrated for the first time low-threshold whispering-gallery mode upconversion lasing through five-photon absorption enhanced by on-chip microcavities at room temperature.

Low-Threshold Whispering-Gallery Mode Upconversion Lasing via Simultaneous Six-Photon Absorption

2018 ◽  
Vol 6 (17) ◽  
pp. 1800407 ◽  
Author(s):  
Anqi Chen ◽  
Hai Zhu ◽  
Yanyan Wu ◽  
Decheng Yang ◽  
Jinyu Li ◽  
...  
Keyword(s):  
Whispering Gallery Mode ◽  
Photon Absorption ◽  
Whispering Gallery ◽  
Low Threshold

scholarly journals On-Chip Glass Microspherical Shell Whispering Gallery Mode Resonators

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Chenchen Zhang ◽  
Alexander Cocking ◽  
Eugene Freeman ◽  
Zhiwen Liu ◽  
Srinivas Tadigadapa
Keyword(s):  
Whispering Gallery Mode ◽  
Whispering Gallery ◽  
On Chip

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.

scholarly journals Controllable Polarization of Lasing Emission From a Polymer Microfiber Laser

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Van Duong Ta ◽  
Rui Chen ◽  
Handong Sun
Keyword(s):  
Optical Sensors ◽  
Transverse Magnetic ◽  
Optical Switches ◽  
Pulse Excitation ◽  
Whispering Gallery ◽  
Low Threshold ◽  
Output Laser ◽  
On Chip ◽  
Doped Polymer ◽  
Lasing Modes

AbstractMicrolasers with controllable polarization of output emission are vital for on-chip optical communications, optical sensors and optical switches. In this work, we report a high quality (Q) factor, low-threshold polymer microfiber laser and the possibility of achieving laser emission with a desired polarization. The microfiber is fabricated by direct drawing from a dye-doped polymer solution and it can generate whispering gallery mode (WGM) lasing under optical pulse excitation. When the microfiber is pumped from the side with pumping direction perpendicular to the microfiber’s axis, the polarization direction of the output laser is found to be the same as that of the pump laser. Lasing emission with either transverse electric (TE) or transverse magnetic (TM) modes can be obtained and these two polarization states can be switched over by tuning the pumping laser. Furthermore, emission with both TE and TM modes can also be observed by changing the orientation of the microfiber relatively to pumping direction. Our finding provides an effective approach for achieving microlasers that have high Q lasing modes with anticipated polarization.

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

2019 ◽  
Vol 7 (41) ◽  
pp. 12869-12875 ◽  
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.

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

On-chip single-mode high-Q terahertz whispering gallery mode resonator

2019 ◽  
Vol 44 (11) ◽  
pp. 2835 ◽  
Author(s):  
Ziwei Wang ◽  
Shixing Yuan ◽  
Gaoneng Dong ◽  
Ruolan Wang ◽  
Liao Chen ◽  
...  
Keyword(s):  
Single Mode ◽  
Whispering Gallery Mode ◽  
High Q ◽  
Whispering Gallery ◽  
On Chip ◽  
Whispering Gallery Mode Resonator ◽  
Mode Resonator

scholarly journals Dispersion mapping of a whispering gallery mode robust polariton at room temperature

OSA Continuum ◽  
2020 ◽  
Vol 3 (8) ◽  
pp. 2053
Author(s):  
Zhiyang Chen ◽  
Huying Zheng ◽  
Hai Zhu ◽  
Ying Huang ◽  
Ziying Tang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Whispering Gallery Mode ◽  
Whispering Gallery

Optical Whispering-Gallery Mode Phenomenon as a Composite Sensor With Applications to Direct On-Chip Thermal Sensing

2013 ◽  
Author(s):  
Matthew Frenkel ◽  
Marlon Avellan ◽  
Zhixiong Guo
Keyword(s):  
Composite System ◽  
Whispering Gallery Mode ◽  
Quality Factors ◽  
Pressure Sensing ◽  
Whispering Gallery ◽  
Area Of Interest ◽  
Thermal Sensing ◽  
On Chip ◽  
Wgm Resonators ◽  
Very High

Optical Whispering-Gallery Mode (WGM) resonators can be fabricated with very high quality factors allowing for their use as high resolution sensors in a myriad of fields ranging from quantum electro-dynamics (QED) to pressure sensing. In this paper, we focus on integrating WGM as a dynamic temperature measurement device. The WGM sensors are fabricated onto the heating element, instead of acting as an indirect temperature sensor, allowing for direct monitoring of an area of interest. An adaptation to the WGM theoretical model, to include the thermal expansion of the composite system, is discussed and analyzed.

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