Compact 1.64 THz source based on a dual-wavelength diode end-pumped Nd:YLF laser with a nearly semiconfocal cavity

被引：17

作者：

Angeluts, A. A. ^{[1
,2
]}

Bezotosnyi, V. V. ^{[3
]}

Cheshev, E. A. ^{[3
]}

Goltsman, G. N. ^{[4
,5
]}

Finkel, M. I. ^{[4
]}

Seliverstov, S. V. ^{[4
]}

Evdokimov, M. N. ^{[1
,2
]}

Gorbunkov, M. V. ^{[3
]}

Kitaeva, G. Kh ^{[1
,2
]}

Koromyslov, A. L. ^{[3
]}

Kostryukov, P. V. ^{[1
,2
]}

Krivonos, M. S. ^{[3
]}

Lobanov, Yu V. ^{[4
,6
]}

Shkurinov, A. P. ^{[1
,2
]}

Sarkisov, S. Yu ^{[7
]}

Tunkin, V. G. ^{[1
,2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119991, Russia

[3] PN Lebedev Phys Inst, Moscow 119991, Russia

[4] Moscow State Pedag Univ, Moscow 119991, Russia

[5] Natl Res Univ, Higher Sch Econ, Moscow 101000, Russia

[6] State Univ, Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia

[7] Tomsk State Univ, Siberian Phys & Tech Inst, Tomsk 634034, Russia

来源：

LASER PHYSICS LETTERS | 2014年 / 11卷 / 01期

关键词：

dual-wavelength lasers; difference frequency THz generation;

D O I：

10.1088/1612-2011/11/1/015004

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a compact dual-wavelength (1.047 and 1.053 mu m) diode end-pumped Q-switched Nd:YLE laser source which has a number of applications in demand. In order to achieve its dual-wavelength operation it is suggested for the first time to use essentially nonmonotonous dependences of the threshold pump powers at these wavelengths on the cavity length in the region of the cavity semiconfocal configuration under a radius of the pump beam smaller than the radius of the zero Gaussian mode. Here we demonstrate one of the most interesting applications for this laser: difference frequency generation in a GaSe crystal at a frequency of 1.64 THz. A superconducting hot-electron bolometer is used to detect the THz power generated and to measure its pulse characteristics.

引用

页数：4

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