TY - JOUR AU - Angeluts, A. A. AU - Bezotosnyi, V. V. AU - Cheshev, E. A. AU - Goltsman, G. N. AU - Finkel, M. I. AU - Seliverstov, S. V. AU - Evdokimov, M. N. AU - Gorbunkov, M. V. AU - Kitaeva, G. Kh AU - Koromyslov, A. L. AU - Kostryukov, P. V. AU - Krivonos, M. S. AU - Lobanov, Yu V. AU - Shkurinov, A. P. AU - Sarkisov, S. Yu AU - Tunkin, V. G. PY - 2014 DA - 2014// TI - Compact 1.64 THz source based on a dual-wavelength diode end-pumped Nd:YLF laser with a nearly semiconfocal cavity JO - Laser Phys. Lett. SP - 015004 (1 to 4) VL - 11 IS - 1 KW - HEB applications KW - HEB detector applications KW - short THz pulses detection AB - We describe a compact dual-wavelength (1.047 and 1.053 μm) 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. UR - https://doi.org/10.1088/1612-2011/11/1/015004 DO - 10.1088/1612-2011/11/1/015004 N1 - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1076), last updated on Thu, 13 May 2021 14:38:20 -0500 ID - Angeluts_etal2014 ER -