Modulation instability of terahertz electromagnetic pulses in SrTiO3 paraelectric

Author

Rapoport, Yu.G. ; Grimalsky, V.V. ; Koshevaya, S.V. ; Melendez-Isidoro, D.L.

Author_Institution

Phys. Fac., Nat. T. Shevchenko Univ., Kiev, Ukraine

fYear

2015

fDate

21-24 April 2015

Firstpage

128

Lastpage

131

Abstract

It is investigated the modulation instability of terahertz electromagnetic waves in paraelectric crystals SrTiO₃ at the temperatures 77 K. The cubic nonlinearity and the frequency dispersion correspond to the existence of bright envelope solitons and the modulation instability of long input pulses. The threshold of modulation instability can be reduced by reflection at the boundaries of the crystal. There is a possibility to generate the sequences of short terahertz pulses due to the modulation instability.

Keywords

dielectric losses; dielectric materials; permittivity; strontium compounds; terahertz wave spectra; SrTiO₃; bright envelope solitons; cubic nonlinearity; dielectric losses; dielectric permittivity; frequency dispersion; modulation instability; paraelectric crystals; temperature 77 K; terahertz electromagnetic pulses; terahertz electromagnetic waves; Crystals; Dielectrics; Dispersion; Microwave communication; Modulation; Permittivity; Reflection; dispersion and nonlinearity; modulation instability; strontium titanate; terahertz pulses;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Nanotechnology (ELNANO), 2015 IEEE 35th International Conference on

Conference_Location

Kiev

Type

conf

DOI

10.1109/ELNANO.2015.7146851

Filename

7146851