Compact and coherent source of widely tunable THz radiation

T. J. Edwards; D. Walsh; M. B. Spurr; P. G. Browne; C. F. Rae; M. H. Dunn

doi:10.1117/12.689621

28 September 2006 Compact and coherent source of widely tunable THz radiation

T. J. Edwards, D. Walsh, M. B. Spurr, P. G. Browne, C. F. Rae, M. H. Dunn

Proceedings Volume 6402, Optics and Photonics for Counterterrorism and Crime Fighting II; 64020C (2006) https://doi.org/10.1117/12.689621
Event: Optics/Photonics in Security and Defence, 2006, Stockholm, Sweden

Abstract

We report a THz radiation source based on the technique of non-collinear phasematched parametric generation. The source, which is compact and operable at room temperature, generates nanosecond pulses of peak power and energy greater than 3 W and 17 nJ respectively. The radiation is continuously tunable over the range 1.2-3.05 THz and is of narrow spectral bandwidth (<100 GHz). The use of intersecting pump and parametric wave cavities results in minimum threshold pump pulse energies below 1 mJ (from a Nd:YAG laser excited at 20 W, 500 μsec by a quasi-CW diode-laser) and close to 50% down-conversion efficiency when operated at twice threshold.

Citation Download Citation

T. J. Edwards, D. Walsh, M. B. Spurr, P. G. Browne, C. F. Rae, and M. H. Dunn "Compact and coherent source of widely tunable THz radiation", Proc. SPIE 6402, Optics and Photonics for Counterterrorism and Crime Fighting II, 64020C (28 September 2006); https://doi.org/10.1117/12.689621

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