Ultrabroadband polarization analysis of terahertz pulses | Zendy

Amjad Hussain | Zendy; S. R. Andrews | Zendy

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Ultrabroadband polarization analysis of terahertz pulses

Author(s) -

Amjad Hussain,

S. R. Andrews

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.007251

Subject(s) - terahertz radiation , optical rectification , optics , electric field , birefringence , polarization (electrochemistry) , optoelectronics , photoconductivity , materials science , detector , terahertz spectroscopy and technology , pockels effect , terahertz gap , physics , nonlinear optics , terahertz metamaterials , laser , far infrared laser , chemistry , quantum mechanics

We describe the characteristics of a sensitive photoconductive detector that simultaneously measures orthogonal electric field components of electromagnetic transients with bandwidths up to 30 THz. The device consists of an As(+) implanted GaAs photoconducting region at the centre of a pair of perpendicular bow-tie antennas. The performance is illustrated by studies of optical rectification in GaSe, retardation in a birefringent polymer film and THz emission from impulsively excited optical phonons in GaN.

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