Terahertz pulse generation by the method of optical rectification of few-cycle laser pulses propagating in GaAs crystal

D. L. Hovhannisyan; V. O. Chaltykyan; A. S. Martirosyan; K. G. Stepanyan

doi:10.1117/12.819787

21 May 2009 Terahertz pulse generation by the method of optical rectification of few-cycle laser pulses propagating in GaAs crystal

D. L. Hovhannisyan, V. O. Chaltykyan, A. S. Martirosyan, K. G. Stepanyan

Author Affiliations +

Proceedings Volume 7354, Nonlinear Optics and Applications III; 735412 (2009) https://doi.org/10.1117/12.819787
Event: SPIE Optics + Optoelectronics, 2009, Prague, Czech Republic

Abstract

We present the results of theoretical studies of the generation process of terahertz radiation arising via interaction of fewcycle laser pulses propagating in an isotropic nonlinear medium. Numerical time-integration by the finite-difference method of the system of nonlinear Maxwell equations has been performed. We consider the interaction of mutuallyorthogonal linearly polarized pulses, both having the central wavelength of 1.98 μm, duration of 30 fs and the energies of 30 nJ, propagating along the normal to the <110> plane in the 1 mm-thickness GaAs crystal. The process of formation of a terahertz pulse arising via spectral filtration of supercontinuum formed in the spectra of pump pulses at the output of nonlinear crystal is studied. The dependences of both current frequency of the pump pulses on time for different lengths of nonlinear crystal and of pump pulse durations on the crystal length are obtained.

Citation Download Citation

D. L. Hovhannisyan, V. O. Chaltykyan, A. S. Martirosyan, and K. G. Stepanyan "Terahertz pulse generation by the method of optical rectification of few-cycle laser pulses propagating in GaAs crystal", Proc. SPIE 7354, Nonlinear Optics and Applications III, 735412 (21 May 2009); https://doi.org/10.1117/12.819787

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available