Highly efficient photon upconversion based on triplet-triplet annihilation from bichromophoric annihilators

2021 ◽  
Author(s):  
Wenjing Sun ◽  
Alessandra Ronchi ◽  
Tonghan Zhao ◽  
Jianlei Han ◽  
Angelo Monguzzi ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Unique Feature ◽  
High Energy ◽  
Low Energy ◽  
High Conversion ◽  
High Conversion Efficiency ◽  
Highly Efficient ◽  
Promising Strategy ◽  
Triplet Triplet Annihilation

Owing to the unique feature of the high conversion efficiency from low-energy photons to high-energy photons, triplet-triplet annihilation (TTA) based photon upconversion is a promising strategy for harvesting the low-energy...

scholarly journals High conversion efficiency, high energy terahertz pulses by optical rectification in cryogenically cooled lithium niobate

2013 ◽  
Vol 38 (5) ◽  
pp. 796 ◽  
Author(s):  
Shu-Wei Huang ◽  
Eduardo Granados ◽  
Wenqian Ronny Huang ◽  
Kyung-Han Hong ◽  
Luis E. Zapata ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Conversion Efficiency ◽  
High Energy ◽  
Optical Rectification ◽  
High Conversion ◽  
High Conversion Efficiency ◽  
Terahertz Pulses

High Energy and High Conversion Efficiency 355 nm UV Laser

2018 ◽  
Vol 39 (12) ◽  
pp. 1730-1734
Author(s):  
崔建丰 CUI Jian-feng ◽  
李福玖 LI Fu-jiu ◽  
邬小娇 WU Xiao-jiao ◽  
岱 钦 DAI Qin ◽  
李业秋 LI Ye-qiu ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
High Energy ◽  
High Conversion ◽  
Uv Laser ◽  
High Conversion Efficiency

scholarly journals Design and experimental demonstration of a high conversion efficiency OPCPA pre-amplifier for petawatt laser facility

2018 ◽  
Vol 6 ◽  
Author(s):  
Xiao Liang ◽  
Xinglong Xie ◽  
Jun Kang ◽  
Qingwei Yang ◽  
Hui Wei ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Nonlinear Crystal ◽  
Beam Quality ◽  
Pump Energy ◽  
High Conversion ◽  
Signal Pulse ◽  
High Conversion Efficiency ◽  
Optical Parametric ◽  
Good Beam Quality ◽  
Laser Facility

We present the design and experiment of a broadband optical parametric chirped-pulse amplifier (OPCPA) which provides high conversion efficiency and good beam quality at 808 nm wavelength. Using a three-dimensional spatial and temporal numerical model, several design considerations necessary to achieve high conversion efficiency, good beam quality and good output stability are discussed. To improve the conversion efficiency and broaden the amplified signal bandwidth simultaneously, the nonlinear crystal length and OPCPA parameters are analyzed and optimized with the concept of dissipating amplified idler between optical parametric amplification (OPA) of two crystals configuration. In the experiment, an amplifier consisting of two OPCPA stages of ‘L’ type configuration was demonstrated by using the optimized parameters. An amplified signal energy of 160 mJ was achieved with a total pump-to-signal efficiency of 35% (43% efficiency for the OPCPA stage 2). The output bandwidth of signal pulse reached 80 nm and the signal pulse was compressed to 24 fs. The energy stability reached 1.67% RMS at 3% pump energy variation. The optimized OPCPA amplifier operates at a repetition rate of 1 Hz and is used as a front-end injection for the main amplifier of SG-II 5PW laser facility.

Realizing high-efficiency power generation in low-cost PbS-based thermoelectric materials

2020 ◽  
Vol 13 (2) ◽  
pp. 579-591 ◽  
Author(s):  
Binbin Jiang ◽  
Xixi Liu ◽  
Qi Wang ◽  
Juan Cui ◽  
Baohai Jia ◽  
...  
Keyword(s):  
Power Generation ◽  
Conversion Efficiency ◽  
Thermoelectric Materials ◽  
High Efficiency ◽  
Low Cost ◽  
Thermoelectric Module ◽  
High Conversion ◽  
High Conversion Efficiency

A high conversion efficiency of 11.2% was realized in a low-cost PbS-based segmented thermoelectric module.

Mechanically Stacked GaAs/GaInAsP Dual-Junction Solar Cell with High Conversion Efficiency of More than 31%

2005 ◽  
Vol 44 (No. 31) ◽  
pp. L988-L990 ◽  
Author(s):  
Takashi Yamada ◽  
Akihiro Moto ◽  
Yasuhiro Iguchi ◽  
Mitsuo Takahashi ◽  
So Tanaka ◽  
...  
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
High Conversion ◽  
High Conversion Efficiency ◽  
Junction Solar Cell
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