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Compact diode-laser-based system for continuous-wave and quasi-time-domain terahertz spectroscopy
Carsten Brenner1, Martin Hofmann, Maik Scheller
1Lehrstuhl für Photonik und Terahertztechnologie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780 Bochum, Germany. carsten.brenner@rub.de
Optics Letters
|December 3, 2010
Summary
We developed a versatile terahertz spectroscopy system using diode lasers. It combines continuous-wave and broadband THz generation for advanced analysis, simplifying complex measurements.
Area of Science:
- Physics
- Spectroscopy
- Optics
Background:
- Terahertz (THz) spectroscopy is crucial for material analysis.
- Existing laser-based THz systems typically offer either continuous-wave (cw) or broadband generation.
- A need exists for versatile THz systems combining both generation modes.
Purpose of the Study:
- To present a novel multimodal diode-laser-based THz spectroscopy system.
- To combine the advantages of cw and broadband THz generation in a single setup.
- To enable sophisticated data analysis comparable to complex time-domain spectroscopy systems.
Main Methods:
- Utilized a diode-laser-based setup for THz generation.
- Implemented a system capable of switching between cw difference frequency generation and broadband THz emission.
- Designed a low-complexity configuration for efficient operation.
Main Results:
- Successfully demonstrated a multimodal THz spectroscopy system.
- Achieved fast switching between cw and broadband THz generation modes.
- The system offers capabilities for advanced data analysis.
Conclusions:
- The presented system offers a versatile and efficient approach to THz spectroscopy.
- This multimodal system provides a simpler alternative for sophisticated THz data analysis.
- The technology has potential applications in various scientific and industrial fields.
