Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

High-power tunable, 0.5 3 THz radiation source based on nonlinear difference frequency mixing of C O 2 laser lines

Not Accessible

Your library or personal account may give you access

Abstract

Terahertz (THz) pulses with a peak power of 2kW were generated in a noncollinear phase-matched GaAs crystal at room temperature. Two 200ns pulses from a dual-beam TEA CO2 laser were used for difference frequency mixing in the crystal. A comb of narrow lines (Δνν104) was obtained in the 0.53THz range with a step of 40GHz. By comparing the effective nonlinearity of GaSe with that of GaAs for THz generation, the electro-optic nonlinear coefficient for GaSe was measured to be deo=24.3±10%pmV. Using simulations we show that a 1kWTHz pulse could be amplified by a factor of 2×104 to a 10MW level in a 2m long single-pass free-electron laser.

© 2007 Optical Society of America

Full Article  |  PDF Article
More Like This
Efficient, tunable, and coherent 0.18–5.27-THz source based on GaSe crystal

Wei Shi, Yujie J. Ding, Nils Fernelius, and Konstantin Vodopyanov
Opt. Lett. 27(16) 1454-1456 (2002)

Tunable coherent infrared source from 5-16 µm based on difference-frequency mixing in an indium-doped GaSe crystal

Subhasis Das, Chittaranjan Ghosh, Sudipta Gangopadhyay, Udit Chatterjee, Gopal C. Bhar, Valeriy G. Voevodin, and Olga G. Voevodina
J. Opt. Soc. Am. B 23(2) 282-288 (2006)

External-cavity difference-frequency source near 3.2 μm, based on combining a tunable diode laser with a diode-pumped Nd:YAG laser in AgGaS2

U. Simon, S. Waltman, I. Loa, F. K. Tittel, and L. Hollberg
J. Opt. Soc. Am. B 12(2) 323-327 (1995)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved