Ultrabroadband polarization analysis of terahertz pulses

A Hussain, Steven R Andrews

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)7251-7257
Number of pages7
JournalOptics Express
Volume16
Issue number10
Early online date4 May 2008
DOIs
Publication statusPublished - 12 May 2008

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