Time-resolved detection of far-field THz-radiation patterns: spatially restricted coherence of surface field THz emitters

F. Hilbk-Kortenbruck; Peter Haring Bolivar; Rainer Martini; Henricus P. M. Pellemans; Heinrich Kurz

doi:10.1117/12.361051

9 September 1999 Time-resolved detection of far-field THz-radiation patterns: spatially restricted coherence of surface field THz emitters

F. Hilbk-Kortenbruck, Peter Haring Bolivar, Rainer Martini, Henricus P. M. Pellemans, Heinrich Kurz

Author Affiliations +

Proceedings Volume 3828, Terahertz Spectroscopy and Applications II; (1999) https://doi.org/10.1117/12.361051
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany

Abstract

The measurements of the spatial coherence of a macroscopic ensemble of carriers excited coherently by femtosecond laser pulses is presented. The spatial coherence of the excited ensemble is derived from time- and spatially resolved measurements of the far-field THz-emission pattern. The analysis concentrates on surface field emitters, which are widespread broadband sources of coherent THz-radiation. We find that these emitters are fully spatially coherent for emission frequencies up to 1.6 THz, above which frequency the spatial coherence starts to decrease. For frequencies above 2.5 THz the spatial coherence of the emitter is limited to one THz wavelength.

Citation Download Citation

F. Hilbk-Kortenbruck, Peter Haring Bolivar, Rainer Martini, Henricus P. M. Pellemans, and Heinrich Kurz "Time-resolved detection of far-field THz-radiation patterns: spatially restricted coherence of surface field THz emitters", Proc. SPIE 3828, Terahertz Spectroscopy and Applications II, (9 September 1999); https://doi.org/10.1117/12.361051

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