Title :
Ultra-wideband THz detection by using DAST crystal based on frequency up-conversion technique
Author :
Qi, Feng ; Nawata, Koji ; Notake, Takashi ; Kawamata, Hiroshi ; Matsukawa, Takeshi ; Minamide, Andhiroaki
Author_Institution :
Tera-Photonics Lab., RIKEN ASI, Sendai, Japan
Abstract :
Frequency up-conversion has been proved to be very effective in THz generation. Reverse physical process can serve THz detection. Based on our in-house characterization of DAST crystal and previous intense studies of monochromatic THz generation, we propose an ultra-wideband THz detection approach by using frequency up-conversion technique, which may work from around 2 THz, up to 28 THz at room temperature, accompanied with a high sensitivity.
Keywords :
optical materials; organic compounds; terahertz wave spectra; DAST crystal; frequency up-conversion technique; monochromatic THz generation; reverse physical process; sensitivity; temperature 293 K to 298 K; ultrawideband THz detection; Approximation methods; Bandwidth; Bolometers; Crystals; PIN photodiodes; Sensitivity; Ultra wideband technology;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380156
