scholarly journals Tailoring Whispering Gallery Lasing and Random Lasing in A Compound Cavity

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 656 ◽  
Author(s):  
Zhiyang Xu ◽  
Junhua Tong ◽  
Xiaoyu Shi ◽  
Jinxiang Deng ◽  
Tianrui Zhai
Keyword(s):  
Chemical Etching ◽  
Optical Pumping ◽  
Whispering Gallery Mode ◽  
Random Structure ◽  
Light Sources ◽  
Random Lasing ◽  
Laser Device ◽  
Whispering Gallery ◽  
Sensing Applications ◽  
Metal Assisted Chemical Etching

A compound cavity was proposed to achieve both whispering gallery mode (WGM) lasing and random lasing. The WGM-random compound cavity consisted of a random structure with an annular boundary, which was fabricated by a method combining both inkjet printing and metal-assisted chemical etching methods. An ultrathin polymer membrane was attached to the WGM-random compound cavity, forming a polymer laser device. A transformation from WGM lasing to random lasing was observed under optical pumping conditions. The laser performance could be easily tailored by changing the parameter of the WGM-random compound cavity. These results provide a new avenue for the design of integrated light sources for sensing applications.

scholarly journals Whispering-Gallery-Mode for Coherent Random Lasing in a Dye-Doped Polystyrene Encapsulated Silica-Glass Capillary

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1578
Author(s):  
Kai Nie ◽  
Yueqi Wang ◽  
Zhenzhen Zhang ◽  
Gang Zou ◽  
Xiaolong Xu ◽  
...  
Keyword(s):  
Quality Factor ◽  
Silica Glass ◽  
Whispering Gallery Mode ◽  
Photonic Devices ◽  
Full Width ◽  
Random Lasing ◽  
Glass Capillary ◽  
New Approach ◽  
Whispering Gallery ◽  
532 Nm

Dye-doped polystyrene (DDPS) encapsulated in a silica-glass capillary with a diameter of 300 μm was fabricated through radical polymerization of styrene within the capillary. The coherent random lasing (RL) with full width at half maximum (FWHM) of 0.36 nm and a quality factor of 1608 was produced in the DDPS with the capillary when pumping at 532 nm. However, the incoherent RL with FWHM of 6.62 nm and a quality factor of 92 was produced in the DDPS without the capillary. A detailed investigation on this phenomenon by changing the diameter of the capillary and core refractive index (RI) reveals that there exists a strong whispering gallery mode (WGM) resonance in the capillary, which helps generate the coherent RL. The findings may open up a new approach for the fabrication of highly efficient photonic devices.

scholarly journals Wavelength tuning of the spirally drawn whispering gallery mode microfiber lasers and the perspectives for sensing applications

2017 ◽  
Vol 25 (3) ◽  
pp. 2618 ◽  
Author(s):  
Shancheng Yang ◽  
Tay Yong Kang Eugene ◽  
Yue Wang ◽  
Xin Zhao ◽  
Hilmi Volkan Demir ◽  
...  
Keyword(s):  
Whispering Gallery Mode ◽  
Wavelength Tuning ◽  
Whispering Gallery ◽  
Sensing Applications

Whispering Gallery Mode Optical Microresonators: Structures and Sensing Applications

2020 ◽  
Vol 217 (6) ◽  
pp. 1900825 ◽  
Author(s):  
Lu Cai ◽  
Junyao Pan ◽  
Yong Zhao ◽  
Jin Wang ◽  
Shiyuan Xiao
Keyword(s):  
Whispering Gallery Mode ◽  
Optical Microresonators ◽  
Whispering Gallery ◽  
Sensing Applications

Enhancing detection limit of whispering gallery mode microcavity for intracellular sensing applications

2021 ◽  
Author(s):  
Jinsong Lu ◽  
Yaping Wang ◽  
Marion C. Lang ◽  
Mingqian Suo ◽  
Shijia Wang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Whispering Gallery Mode ◽  
Whispering Gallery ◽  
Sensing Applications ◽  
Intracellular Sensing

On-chip whispering-gallery-mode lasers for sensing applications

2012 ◽  
Author(s):  
Lina He ◽  
Sahin K. Ozdemir ◽  
Jiangang Zhu ◽  
Woosung Kim ◽  
Lan Yang
Keyword(s):  
Whispering Gallery Mode ◽  
Whispering Gallery ◽  
Sensing Applications ◽  
On Chip

scholarly journals Whispering Gallery Mode Optical Microresonators: Structures and Sensing Applications

2020 ◽  
Vol 217 (6) ◽  
pp. 2070022
Author(s):  
Lu Cai ◽  
Junyao Pan ◽  
Yong Zhao ◽  
Jin Wang ◽  
Shiyuan Xiao
Keyword(s):  
Whispering Gallery Mode ◽  
Optical Microresonators ◽  
Whispering Gallery ◽  
Sensing Applications

scholarly journals Whispering gallery mode micro resonators for multi-parameter sensing applications

2018 ◽  
Vol 26 (24) ◽  
pp. 31829 ◽  
Author(s):  
Arun Kumar Mallik ◽  
Gerald Farrell ◽  
Manjusha Ramakrishnan ◽  
Vishnu Kavungal ◽  
Dejun Liu ◽  
...  
Keyword(s):  
Whispering Gallery Mode ◽  
Whispering Gallery ◽  
Sensing Applications
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