Amplified spontaneous emission and random lasing from a fully biocompatible silk inverse opals (Conference Presentation)

2019 ◽  
Author(s):  
Muhammad Umar ◽  
Kyungtaek Min ◽  
Sookyoung Kim ◽  
Sunghwan Kim
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Random Lasing ◽  
Inverse Opals

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.

Amplified spontaneous emission and random lasing using CsPbBr3 quantum dot glass through controlling crystallization

2020 ◽  
Vol 56 (19) ◽  
pp. 2853-2856 ◽  
Author(s):  
Huiling Zhang ◽  
Lin Yuan ◽  
Ya Chen ◽  
Yaqian Zhang ◽  
Yanxia Yu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Random Lasing ◽  
Heat Treated ◽  
Different Temperatures

CsPbBr3 QD glasses heat-treated at different temperatures have different sizes of QDs and lasing properties.

scholarly journals Broadband Amplified Spontaneous Emission and Random Lasing from Wurtzite CdSe/CdS “Giant-Shell” Nanocrystals

ACS Photonics ◽  
2016 ◽  
Vol 3 (11) ◽  
pp. 2083-2088 ◽  
Author(s):  
Francesco Di Stasio ◽  
Anatolii Polovitsyn ◽  
Ilaria Angeloni ◽  
Iwan Moreels ◽  
Roman Krahne
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Random Lasing

scholarly journals Amplified Spontaneous Emission and Random Lasing in MAPbBr 3 Halide Perovskite Single Crystals

2020 ◽  
Vol 8 (17) ◽  
pp. 2000690 ◽  
Author(s):  
Aleksei O. Murzin ◽  
Boris V. Stroganov ◽  
Carsten Günnemann ◽  
Samia Ben Hammouda ◽  
Anna V. Shurukhina ◽  
...  
Keyword(s):  
Single Crystals ◽  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Random Lasing ◽  
Halide Perovskite

Effect of Molecular Morphology on Amplified Spontaneous Emission of Bis-Styrylbenzene Derivatives

2009 ◽  
Vol 21 (40) ◽  
pp. 4034-4038 ◽  
Author(s):  
Ryota Kabe ◽  
Hajime Nakanotani ◽  
Tomo Sakanoue ◽  
Masayuki Yahiro ◽  
Chihaya Adachi
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Molecular Morphology

scholarly journals Origin of Intramolecular Low‐Threshold Amplified Spontaneous Emission

2021 ◽  
pp. 2001956
Author(s):  
Qi Wei ◽  
Ruihong Duan ◽  
Qi Zhang ◽  
Linghai Xie ◽  
Ruidong Xia ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Low Threshold

Conformationally restricted 2,5-diphenyloxazoles: failure of the electromer model for anomalous amplified spontaneous emission spikes

2006 ◽  
Vol 104 (5-7) ◽  
pp. 957-969 ◽  
Author(s):  
J. Saltiel ◽  
R. A. Ivanov ◽  
D. A. Gormin ◽  
T. S. R. Krishna ◽  
R. J. Clark
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Conformationally Restricted
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