Title :
High-Resolution THz transmission and birefringence measurements in ferroelectric LiNbO3
Author :
Brown, E.R. ; Demers, J.R. ; Logan, R.T. ; Wong, K.K.
Author_Institution :
Phys. Domains LLC, Glendale, CA
Abstract :
We investigate single-crystal, ferroelectric LiNbO3 as a polarization transformer in the region 400 GHz to 1.0 THz, and extract the THz birefringence and attenuation coefficient from high-resolution photomixer spectrometer data. We also report narrow absorption resonances whose frequency is practically independent of sample thickness and whose strength decreases between 400 GHz and 1.0 THz. These are preliminarily associated with bulk-polaron oscillations.
Keywords :
birefringence; ferroelectric materials; lithium compounds; polarons; submillimetre wave spectra; terahertz waves; LiNbO3; THz birefringence; attenuation coefficient; bulk-polaron oscillation; ferroelectric materials; frequency 400 GHz to 1 THz; high-resolution THz transmission; high-resolution photomixer spectrometer; polarization transformer; Birefringence; Ferroelectric materials; Frequency; Geometrical optics; Optical attenuators; Optical receivers; Optical refraction; Optical variables control; Polarization; Spectroscopy;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665474
