Two decades of terahertz cross-correlation spectroscopy
| Autor: | Jens Klier, Daniel Molter, Joachim Jonuscheit, G. von Freymann, Stefan Weber, Michael Kolano |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Cross-correlation Terahertz radiation business.industry Laser source General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Signal Optics 0103 physical sciences 0210 nano-technology business Spectroscopy |
| Zdroj: | Applied Physics Reviews. 8:021311 |
| ISSN: | 1931-9401 |
| DOI: | 10.1063/5.0037395 |
| Popis: | Terahertz cross-correlation spectroscopy enables phase-sensitive measurements without the need for a laser source and, hence, presents a cost-efficient and versatile alternative to common terahertz time-domain spectroscopy approaches. This review article presents the development of this technique over the past two decades as well as applications of this approach. It is completed by a detailed mathematical description proving the irrelevance of the optical phases of the employed pump light modes. Numerical investigations of the resulting signal demonstrate the applicability and are compared to state-of-the-art measurements. Terahertz cross-correlation spectroscopy is a valuable alternative for moderate-demand applications already. Further possible improvements are discussed. |
| Databáze: | OpenAIRE |
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