Title :
Spectral modifications of femtosecond laser pulses induced by phase-matched optical rectification in LiNbO3
Author :
Stepanov, A.G. ; Kompanets, V.O. ; Chekalin, S.V.
Author_Institution :
Russian Acad. of Sci., Moscow
Abstract :
In this paper, we report experimental observations of the spectral modifications of ultrashort laser pulses caused by high-efficiency optical rectification. Moreover, we assert that the observed spectral modifications can be used to evaluate the absolute energy of generated THz pulses without calibrated THz detector. Abilities to obtain more than 100% optical-to-THz quantum conversion efficiency by phase-matched optical rectification are discussed. THz radiation in our experiment was generated in a LiNbO3 crystal using a tilted pulse front phase-matching.
Keywords :
electro-optical effects; lithium compounds; optical harmonic generation; optical materials; optical phase matching; optical pulse generation; submillimetre wave generation; LiNbO3; THz pulse generation; femtosecond ultrashort laser pulses; optical-to-THz quantum conversion efficiency; phase-matched optical rectification; Energy conversion; Frequency conversion; Nonlinear optics; Optical frequency conversion; Optical mixing; Optical pulse generation; Optical pulses; Photonic crystals; Pulse measurements; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386331
