scholarly journals Low Threshold Microlasers Based on Organic-Conjugated Polymers

2021 ◽  
Vol 9 ◽  
Author(s):  
Hong-xu Chen ◽  
Meng-dan Qian ◽  
Kun Yu ◽  
Yu-fang Liu
Keyword(s):  
Conjugated Polymers ◽  
Optical Feedback ◽  
Laser Materials ◽  
Practical Applications ◽  
Design And Optimization ◽  
Organic Conjugated Polymers ◽  
Laser Sensing ◽  
New Ideas ◽  
Specific Geometry ◽  
Low Threshold

Conjugated polymers have emerged as ideal organic laser materials for the excellent optoelectrical properties and facile processability. During a typical lasing process, resonator configurations with specific geometry are essential to provide optical feedback and then amplified light. Herein, we summarized the geometry and working mechanism of several typical resonator configurations formed with conjugated polymers. Meanwhile, recent advances in fabrication techniques and lasing performance are also discussed to provide new ideas for the design and optimization of microcavity geometries. Followed by the advances of practical applications in fields of laser sensing, bioimaging, and laser illumination/display, we make a summary of the existing bottlenecks and future perspectives of electrically driven organic lasers toward laser display and illumination.

scholarly journals Advances in Conjugated Polymer Lasers

Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 443 ◽  
Author(s):  
Hongyan Xia ◽  
Chang Hu ◽  
Tingkuo Chen ◽  
Dan Hu ◽  
Muru Zhang ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Cross Sections ◽  
Conjugated Polymer ◽  
Low Cost ◽  
Research Direction ◽  
Stimulated Emission ◽  
Laser Materials ◽  
Radiation Mechanism ◽  
The Subject ◽  
Low Cost Manufacturing

This paper provides a review of advances in conjugated polymer lasers. High photoluminescence efficiencies and large stimulated emission cross-sections coupled with wavelength tunability and low-cost manufacturing processes make conjugated polymers ideal laser gain materials. In recent years, conjugated polymer lasers have become an attractive research direction in the field of organic lasers and numerous breakthroughs based on conjugated polymer lasers have been made in the last decade. This paper summarizes the recent progress of the subject of laser processes employing conjugated polymers, with a focus on the photoluminescence principle and excitation radiation mechanism of conjugated polymers. Furthermore, the effect of conjugated polymer structures on the laser threshold is discussed. The most common polymer laser materials are also introduced in detail. Apart from photo-pumped conjugated polymer lasers, a direction for the future development of electro-pumped conjugated polymer lasers is proposed.

scholarly journals Recent Progress in Thermoelectric Materials Based on Conjugated Polymers

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 107 ◽  
Author(s):  
Chang-Jiang Yao ◽  
Hao-Li Zhang ◽  
Qichun Zhang
Keyword(s):  
Thermal Conductivity ◽  
Energy Harvesting ◽  
Conjugated Polymers ◽  
Recent Progress ◽  
Inorganic Compounds ◽  
Lead Telluride ◽  
Practical Applications ◽  
Tin Selenide ◽  
Properties Of Materials ◽  
High Flexibility

Organic thermoelectric (TE) materials can directly convert heat to electricity, and they are emerging as new materials for energy harvesting and cooling technologies. The performance of TE materials mainly depends on the properties of materials, including the Seebeck coefficient, electrical conductivity, thermal conductivity, and thermal stability. Traditional TE materials are mostly based on low-bandgap inorganic compounds, such as bismuth chalcogenide, lead telluride, and tin selenide, while organic materials as promising TE materials are attracting more and more attention because of their intrinsic advantages, including cost-effectiveness, easy processing, low density, low thermal conductivity, and high flexibility. However, to meet the requirements of practical applications, the performance of organic TE materials needs much improvement. A variety of efforts have been made to enhance the performance of organic TE materials, including the modification of molecular structure, and chemical or electrochemical doping. In this review, we summarize recent progress in organic TE materials, and discuss the feasible strategies for enhancing the properties of organic TE materials for future energy-harvesting applications.

Ultrafast Spectroscopic Study of Donor–Acceptor Benzodithiophene Light Harvesting Organic Conjugated Polymers

2016 ◽  
Vol 120 (17) ◽  
pp. 9088-9096 ◽  
Author(s):  
Bradley Keller ◽  
Alan McLean ◽  
Bong-Gi Kim ◽  
Kyeongwoon Chung ◽  
Jinsang Kim ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Spectroscopic Study ◽  
Light Harvesting ◽  
Organic Conjugated Polymers ◽  
Donor Acceptor

π-Conjugated Polymers Composed of BODIPY or Aza-BODIPY Derivatives Exhibiting High Electron Mobility and Low Threshold Voltage in Electron-Only Devices

2014 ◽  
Vol 47 (7) ◽  
pp. 2316-2323 ◽  
Author(s):  
Ryousuke Yoshii ◽  
Honami Yamane ◽  
Atsushi Nagai ◽  
Kazuo Tanaka ◽  
Hideo Taka ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Threshold Voltage ◽  
Electron Mobility ◽  
High Electron ◽  
High Electron Mobility ◽  
Low Threshold

scholarly journals Electrochemical Sensors Based on Organic Conjugated Polymers

Sensors ◽  
2008 ◽  
Vol 8 (1) ◽  
pp. 118-141 ◽  
Author(s):  
Md. Rahman ◽  
Pankaj Kumar ◽  
Deog-Su Park ◽  
Yoon-Bo Shim
Keyword(s):  
Conjugated Polymers ◽  
Electrochemical Sensors ◽  
Organic Conjugated Polymers

Conjugated polymers as solid-state laser materials

1997 ◽  
Vol 91 (1-3) ◽  
pp. 35-40 ◽  
Author(s):  
Fumitomo Hide ◽  
Benjamin J. Schwartz ◽  
María A. Díaz-García ◽  
Alan J. Heeger
Keyword(s):  
Solid State ◽  
Conjugated Polymers ◽  
Solid State Laser ◽  
Laser Materials ◽  
State Laser

scholarly journals Advanced Classical Optical Filters with Three Waveguide Coupled Sagnac Loop Reflectors

2021 ◽  
Author(s):  
Hamed Arianfard ◽  
Jiayang Wu ◽  
Saulius Juodkazis ◽  
David Moss
Keyword(s):  
High Performance ◽  
Structural Parameters ◽  
Spectral Response ◽  
Optical Filters ◽  
Practical Applications ◽  
Design And Optimization ◽  
Fabrication Tolerances ◽  
Spectral Ranges ◽  
The Impact ◽  
Mode Interference

Abstract We theoretically investigate advanced multi-functional integrated photonic filters formed by three waveguide coupled Sagnac loop reflectors (3WC-SLRs). By tailoring the coherent mode interference, the spectral response of the 3WC-SLR resonators is engineered to achieve diverse filtering functions with high performance. These include optical analogues of Fano resonances that yield ultrahigh spectral extinction ratios (ERs) and slope rates, resonance mode splitting with high ERs and low free spectral ranges, and classical Butterworth, Bessel, Chebyshev, and elliptic filters. A detailed analysis of the impact of the structural parameters and fabrication tolerances is provided to facilitate device design and optimization. The requirements for practical applications are also considered. These results theoretically verify the effectiveness of using 3WC-SLR resonators as multi-functional integrated photonic filters for flexible spectral engineering in diverse applications.

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