Regular Article

Nonlinear optical detection of terahertz-frequency radiation in crystals with periodic domain structure

S.P. Kovalev$^1$, G.Kh. Kitaeva$^1$, N.A. Ilyin$^2$, I.E. Ilyakov$^3$, E.D. Mishina$^2$, A.N. Penin$^1$, A.S. Sigov$^2$

Moscow University Physics Bulletin 2011. 66. N 1. P. 12

Article

Annotation

The temporal and spectral characteristics of the terahertz response are measured for crystals of doped lithium niobate with an as-grown domain structure. It is shown that the crystals can be used for narrow-band generation and detection of terahertz waves in the processes of nonlinear-optical conversion of the laser radiation frequency. Frequency tuning in the range from 0.5 to 2.5 THz can be performed, due to both variations in the domain structure period and changes in the nonlinear-optical interaction geometry.

Received: 2010 September 29

Approved: 2011 April 13

PACS:

42.65.Ky Frequency conversion; harmonic generation, including higher-order harmonic generation
42.79.Nv Optical frequency converters

Authors

S.P. Kovalev$^1$, G.Kh. Kitaeva$^1$, N.A. Ilyin$^2$, I.E. Ilyakov$^3$, E.D. Mishina$^2$, A.N. Penin$^1$, A.S. Sigov$^2$
$^1$Faculty of Physics, Moscow State University, Moscow, 119991, Russia
$^2$Moscow State Institute of Radioengineering, Electronics, and Automation, Moscow, 117454, Russia
$^3$Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod, 603950, Russia

Issue 1, 2011

Moscow University Physics Bulletin

Science News of the Faculty of Physics, Lomonosov Moscow State University

This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.