Title :
Tunable narrow-band terahertz generation from periodically poled lithium niobate
Author :
Lee, Yi-Shu ; Meade, T. ; Norris, Theodore B. ; Galvanauskas, A.
Author_Institution :
Center for Ultrafast Opt. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
Summary form only given. We demonstrate here a novel technique to generate tunable narrow-band THz radiation. The basic scheme is that femtosecond optical pulses propagate through a periodically-poled lithium niobate (PPLN) (LiNbO/sub 3/) crystal, where the domain width is matched to the walk-off length between the optical and THz pulses. A nonlinear polarization is generated via optical rectification in the PPLN, and each domain in the PPLN contributes a half-cycle to the radiated THz field.
Keywords :
dielectric polarisation; light polarisation; lithium compounds; microwave photonics; nonlinear optics; optical pulse generation; photorefractive materials; submillimetre wave generation; LiNbO/sub 3/; femtosecond optical pulses; lithium niobate; nonlinear polarization; optical rectification; periodically poled; periodically-poled crystal; tunable narrow-band THz radiation; tunable narrow-band terahertz generation; walk-off length; Frequency; Lithium niobate; Narrowband; Nonlinear optics; Optical pulse generation; Optical refraction; Optical sensors; Optical variables control; Tunable circuits and devices; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2001. QELS '01. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-663-X
DOI :
10.1109/QELS.2001.961829
