Tunable narrow-band terahertz generation from periodically poled lithium niobate

Lee, Y. S.; Meade, T.; Norris, T. B.; Galvanauskas, A.
June 2001
Applied Physics Letters;6/4/2001, Vol. 78 Issue 23, p3583
Academic Journal
We describe a technique for generating tunable narrow-band terahertz radiation via optical rectification in periodically-poled lithium niobate. Frequency tuning is accomplished by spatially chirping the domain width laterally to the beam propagation direction, and adjusting the temperature of the sample. We demonstrate tuning over a continuous range from 0.8 to 2.5 THz. The bandwidth of the terahertz waveforms is as narrow as 0.02 THz. © 2001 American Institute of Physics.


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