Temporal Frequency Distribution of Thz Pulses by Changing Pump Pulse Conditions
| Autor: | Iwao Hosako, Junichi Hamazaki, Akifumi Kasamatsu, Norihiko Sekine |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Physics business.industry Terahertz radiation Automatic frequency control Physics::Optics Nonlinear optics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Optical pumping Optical rectification Optics 0103 physical sciences Chirp Frequency distribution 0210 nano-technology business Frequency modulation |
| Zdroj: | 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). |
| DOI: | 10.1109/irmmw-thz.2018.8510455 |
| Popis: | We have addressed temporal frequency chirped terahertz pulses to open possibilities of THz technologies. For this purpose, we investigate temporal frequency distributions of THz pulses generated from GaP crystal via optical rectification effect by using Hilbert transform analysis. It is observed that the distributions are changed drastically with respect to the chirp of the pump pulse. At certain chirp, non-trivial temporal frequency distribution, i.e., A- and/or V-shaped frequency shifts are observed. Using a simple model, origin of various temporal frequency distributions is discussed. |
| Databáze: | OpenAIRE |
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