Electrically pumped ultraviolet random lasing from ZnO films: Compensation between optical gain and light scattering

2010 ◽  
Vol 97 (25) ◽  
pp. 251115 ◽  
Author(s):  
Ye Tian ◽  
Xiangyang Ma ◽  
Lu Jin ◽  
Deren Yang
Keyword(s):  
Light Scattering ◽  
Optical Gain ◽  
Zno Films ◽  
Random Lasing ◽  
Electrically Pumped

Electrically pumped random lasing from hydrothermal ZnO films of large grains

2015 ◽  
Vol 332 ◽  
pp. 620-624 ◽  
Author(s):  
Canxing Wang ◽  
Chen Zhu ◽  
Chunyan Lv ◽  
Dongsheng Li ◽  
Xiangyang Ma ◽  
...  
Keyword(s):  
Zno Films ◽  
Random Lasing ◽  
Electrically Pumped

A chemical strategy to reinforce electrically pumped ultraviolet random lasing from ZnO films

2012 ◽  
Vol 22 (33) ◽  
pp. 16738 ◽  
Author(s):  
Yunpeng Li ◽  
Xiangyang Ma ◽  
Lu Jin ◽  
Deren Yang
Keyword(s):  
Zno Films ◽  
Random Lasing ◽  
Electrically Pumped ◽  
Chemical Strategy

Optically and electrically pumped random lasing from ZnO films annealed at different temperatures

2012 ◽  
Vol 285 (24) ◽  
pp. 5323-5326 ◽  
Author(s):  
Ye Tian ◽  
Xiangyang Ma ◽  
Luelue Xiang ◽  
M.V. Ryzhkov ◽  
A.A. Borodkin ◽  
...  
Keyword(s):  
Zno Films ◽  
Random Lasing ◽  
Electrically Pumped ◽  
Different Temperatures

scholarly journals Fabry-Perot resonance enhanced electrically pumped random lasing from ZnO films

2015 ◽  
Vol 107 (23) ◽  
pp. 231108 ◽  
Author(s):  
P. N. Ni ◽  
C. X. Shan ◽  
S. P. Wang ◽  
Y. J. Lu ◽  
B. H. Li ◽  
...  
Keyword(s):  
Zno Films ◽  
Random Lasing ◽  
Fabry Perot ◽  
Electrically Pumped

Electrically pumped random lasing with an onset voltage of sub-3 V from ZnO-based light-emitting devices featuring nanometer-thick MoO3interlayers

Nanoscale ◽  
2015 ◽  
Vol 7 (20) ◽  
pp. 9164-9168 ◽  
Author(s):  
Can-Xing Wang ◽  
Chun-Yan Lv ◽  
Chen Zhu ◽  
Zhi-Fei Gao ◽  
Dong-Sheng Li ◽  
...  
Keyword(s):  
Random Lasing ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Electrically Pumped ◽  
Onset Voltage

scholarly journals Electrically pumped random lasing from FTO/porous insulator/n-ZnO/p^+-Si devices

2013 ◽  
Vol 21 (9) ◽  
pp. 10483 ◽  
Author(s):  
Yanjun Fang ◽  
Yewu Wang ◽  
Xi Ding ◽  
Ren Lu ◽  
Lin Gu ◽  
...  
Keyword(s):  
Random Lasing ◽  
Electrically Pumped

Electrically pumped ultraviolet random lasing from island-like polycrystalline ZnO film

2018 ◽  
Vol 47 (12) ◽  
pp. 1220002
Author(s):  
刘春阳 Liu Chunyang ◽  
鞠 莹 Ju Ying ◽  
王 帅 Wang Shuai ◽  
母一宁 Mu Yining
Keyword(s):  
Random Lasing ◽  
Zno Film ◽  
Electrically Pumped

scholarly journals Random lasing and amplified spontaneous emission from silk inverse opals: Optical gain enhancement via protein scatterers

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Muhammad Umar ◽  
Kyungtaek Min ◽  
Sookyoung Kim ◽  
Sunghwan Kim
Keyword(s):  
Spontaneous Emission ◽  
High Surface ◽  
Optical Gain ◽  
Amplified Spontaneous Emission ◽  
Biological Tissues ◽  
Light Sources ◽  
Inverse Opal ◽  
Random Lasing ◽  
Protein Film ◽  
Gain Enhancement

Abstract Gain amplification and coherent lasing lines through random lasing (RL) can be produced by a random distribution of scatterers in a gain medium. If these amplified light sources can be seamlessly integrated into biological systems, they can have useful bio-optical applications, such as highly accurate sensing and high-resolution imaging. In this paper, a fully biocompatible light source showing RL and amplified spontaneous emission (ASE) with a reduced threshold is reported. Random cavities were induced in a biocompatible silk protein film by incorporating an inverse opal with an inherent disorder and a biocompatible dye for optical gain into the film. By choosing the appropriate air-sphere diameters, clear RL spikes in the emission spectra that were clearly distinguished from those of the ASE were observed in the silk inverse opal (SIO) with optical gain. Additionally, the RL output exhibited spatial coherence; however, the ASE did not. The high surface-to-volume ratio and amplification of the SIO led to highly efficient chemosensing in the detection of hydrogen chloride vapor. Moreover, SIO could be miniaturized to be made suitable for injection into biological tissues and obtain RL signals. Our results, which open the way for the development of a new generation of miniaturized bio-lasers, may be considered as the first example of engineered RL with biocompatible materials.

Origin of light scattering in dye doped polymeric waveguides and the dependence of excitation geometry on coherent random lasing

2020 ◽  
Vol 53 (24) ◽  
pp. 245104 ◽  
Author(s):  
Priyanka S Choubey ◽  
Subhashree Ojha N N ◽  
Subhabrata Ghosh ◽  
Shailendra K Varshney ◽  
Shivakiran Bhaktha B N
Keyword(s):  
Light Scattering ◽  
Random Lasing ◽  
Excitation Geometry
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