Terahertz time-domain spectroscopy by asynchronous sampling with modelocked semiconductor lasers

N Surkamp, B Döpke, Y Hu, C Brenner… - … Workshop on Mobile …, 2018 - ieeexplore.ieee.org
Broadband terahertz spectroscopy measurements are commonly recorded with time domain
systems that require a mechanical delay stage to obtain sampling of the terahertz transient …

A time-domain terahertz spectrometer with 90 dB dynamic range

N Vieweg, F Rettich, A Deninger… - … and Terahertz waves …, 2014 - ieeexplore.ieee.org
We present a time-domain terahertz spectrometer based on 1550 nm fiber laser technology
and InGaAs photoconductive switches. The system features a voice-coil delay stage, which …

Robust asynchronous optical sampling terahertz spectroscopy using commercially available free-running lasers

M Nakagawa, N Kanda, H Nakamae… - arXiv preprint arXiv …, 2025 - arxiv.org
This study presents asynchronous optical sampling (ASOPS) terahertz spectroscopy using
commercially available Ti: Sapphire lasers without stabilizing repetition frequency. Our …

Performance analysis of tabletop single-pulse terahertz detection at rates up to 1.1 MHz

N Couture, M Lippl, W Cui, A Gamouras, NY Joly… - Physical Review …, 2024 - APS
Standard terahertz time-domain spectroscopy uses a relatively slow multidata acquisition
process that has hindered the technique's ability to resolve “fast” dynamics occurring on the …

Asynchronous optical sampling terahertz time-domain spectroscopy for ultrahigh spectral resolution and rapid data acquisition

T Yasui, E Saneyoshi, T Araki - Applied Physics Letters, 2005 - pubs.aip.org
We propose a terahertz time-domain spectrometer based on asynchronous optical
sampling. The spectrometer features ultrahigh spectral resolution equivalent to a laser mode …

Terahertz spectrometer operation by laser repetition frequency tuning

R Wilk, T Hochrein, M Koch, M Mei, R Holzwarth - JOSA B, 2011 - opg.optica.org
We present a fully fiber-coupled terahertz time domain spectrometer based on a single
ultrafast laser with an adjustable pulse repetition frequency that does not employ an external …

Performance analysis of table-top single-pulse terahertz detection up to 1.1 MHz

N Couture, M Lippl, W Cui, A Gamouras… - arXiv preprint arXiv …, 2023 - arxiv.org
Slow data acquisition in terahertz time-domain spectroscopy (THz-TDS) has hindered the
technique's ability to resolve" fast" dynamics occurring on the microsecond timescale. This …

Interferometry-aided terahertz time-domain spectroscopy

D Molter, M Trierweiler, F Ellrich, J Jonuscheit… - Optics express, 2017 - opg.optica.org
Terahertz time-domain spectroscopy as well as all optical pump-probe techniques with
ultrashort pulses relies on the exact knowledge of an optical delay between related laser …

Terahertz-time domain spectrometer with 90 dB peak dynamic range

N Vieweg, F Rettich, A Deninger, H Roehle… - Journal of Infrared …, 2014 - Springer
Many time-domain terahertz applications require systems with high bandwidth, high signal-
to-noise ratio and fast measurement speed. In this paper we present a terahertz time-domain …

Optoelectronic frequency-modulated continuous-wave terahertz spectroscopy with 4 THz bandwidth

L Liebermeister, S Nellen, RB Kohlhaas… - Nature …, 2021 - nature.com
Broadband terahertz spectroscopy enables many promising applications in science and
industry alike. However, the complexity of existing terahertz systems has as yet prevented …