Integrated injection seeded terahertz source and amplifier for time-domain spectroscopy.

Abstract

We used a terahertz (THz) quantum cascade laser (QCL) as an integrated injection seeded source and amplifier for THz time-domain spectroscopy. A THz input pulse is generated inside a QCL by illuminating the laser facet with a near-IR pulse from a femtosecond laser and amplified using gain switching. The THz output from the QCL is found to saturate upon increasing the amplitude of the THz input power, which indicates that the QCL is operating in an injection seeded regime.

DOI: 10.1364/OL.37.000731

3 Figures and Tables

Cite this paper

@article{Maysonnave2012IntegratedIS, title={Integrated injection seeded terahertz source and amplifier for time-domain spectroscopy.}, author={J Maysonnave and N Jukam and M S M Ibrahim and K Maussang and J Mad{\'e}o and P Cavali{\'e} and P Dean and S P Khanna and D P Steenson and E H Linfield and A G Davies and J Tignon and S S Dhillon}, journal={Optics letters}, year={2012}, volume={37 4}, pages={731-3} }