Efficient generation of THz pulses with 0.4 mJ energy

被引：216
|
作者：
Fueloep, J. A. [1 ,5 ]
Ollmann, Z. [2 ,5 ]
Lombosi, Cs. [2 ]
Skrobol, C. [3 ,4 ]
Klingebiel, S. [3 ]
Palfalvi, L. [2 ]
Krausz, F. [3 ,4 ]
Karsch, S. [3 ,4 ]
Hebling, J. [1 ,2 ,5 ]
机构：
[1] MTA PTE High Field Terahertz Res Grp, H-7624 Pecs, Hungary
[2] Univ Pecs, Inst Phys, H-7624 Pecs, Hungary
[3] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
[4] Univ Munich, Dept Phys, D-85748 Garching, Germany
[5] Univ Pecs, Szentagothai Res Ctr, H-7624 Pecs, Hungary
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 17期
基金：
匈牙利科学研究基金会;
关键词：
HZ REPETITION RATE; OPTICAL RECTIFICATION; TERAHERTZ PULSES; ELECTRON ACCELERATION; LITHIUM-NIOBATE; CRYSTALS; DESIGN;
D O I：
10.1364/OE.22.020155
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Efficient generation of THz pulses with high energy was demonstrated by optical rectification of 785-fs laser pulses in lithium niobate using tilted-pulse-front pumping. The enhancement of conversion efficiency by a factor of 2.4 to 2.7 was demonstrated up to 186 mu J THz energy by cryogenic cooling of the generating crystal and using up to 18.5 mJ/cm(2) pump fluence. Generation of THz pulses with more than 0.4 mJ energy and 0.77% efficiency was demonstrated even at room temperature by increasing the pump fluence to 186 mJ/cm(2). The spectral peak is at about 0.2 THz, suitable for charged-particle manipulation. (C) 2014 Optical Society of America
引用
收藏
页码：20155 / 20163
页数：9
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