Related Experiment Video
Updated: May 11, 2025

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Coherent detection of pulsed terahertz waves in solid, gaseous, and liquid media
Guoyang Wang1, Ruoxi Wu1, Liangliang Zhang1
1Department of Physics, Key Laboratory of Terahertz Optoelectronics (MoE), Capital Normal University, Beijing 100048, China.
Abstract:
Coherent detection measures both the amplitude and phase of pulsed terahertz (THz) waves simultaneously, forming the foundation for THz time-domain spectroscopy (THz-TDS). This technique has become increasingly prominent in the fields of physics and materials science, allowing researchers to investigate the dynamic properties of various dielectric materials within the 0.1 to 10 THz frequency range, which is previously a challenging spectrum to access. This paper reviews recent advancements and the challenges faced by commonly used coherent detectors in THz-TDS. Our discussion emphasizes the potential for new discoveries in THz photonics and highlights the crucial role of coherent detection in the study of laser-matter interactions.
Related Concept Videos
Gas Chromatography: Types of Detectors-II
High-Performance Liquid Chromatography: Types of Detectors
Gas Chromatography: Types of Detectors-I
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

