Multichannel terahertz time-domain spectroscopy system at 1030 nm excitation wavelength

We present Terahertz (THz) imaging with a 1D multichannel time-domain spectroscopy (TDS) system which operates with a photoconductive array of 15 detection channels excited by a 1030 nm femtosecond fiber laser. The emitter and detector are photoconductive antennas based on InGaAs/InAlAs multi-layer...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2014-06, Vol.22 (11), p.12982-12993
Main Authors: Brahm, Anika, Wilms, Annika, Dietz, Roman J B, Göbel, Thorsten, Schell, Martin, Notni, Gunther, Tünnermann, Andreas
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present Terahertz (THz) imaging with a 1D multichannel time-domain spectroscopy (TDS) system which operates with a photoconductive array of 15 detection channels excited by a 1030 nm femtosecond fiber laser. The emitter and detector are photoconductive antennas based on InGaAs/InAlAs multi-layer heterostructures (MLHS). We characterized the THz optics and the resolution of the system. The performance is demonstrated by the multichannel imaging of two samples. A simultaneous measurement of 15 THz pulses with a pixel pitch of 1 mm increases the measurement speed of the TDS system by factor 15.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.22.012982