We report the study of far-infrared dielectric properties of a polar crystal using the THz time domain spectroscopy. We measured the power and phase transmission spectra by coherent THz radiation. The anisotropy of dielectric properties has been investigated simply by rotating the polarization plane of an incident beam. The frequency dependence of complex dielectric constant has been determined without the Kramers-Kronig analysis. The complex dispersion relation of phonon polariton frequency and damping has been also determined. These far-infrared properties have been consistently reproduced by the damped harmonic oscillator model related to the lowest frequency polar mode.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.