Title :
Multi-frequency Terahertz Generation in Aperiodic Optical Superlattices
Author :
Su, H. ; Ruan, S.C. ; Guo, Y.
Author_Institution :
Shenzhen Univ., Shenzhen
Abstract :
We investigate theoretically the generation of multi-frequency terahertz radiation in a LiNbO3 superlattice with an aperiodic structure. Such an aperiodic domain-inverted optical superlattice is designed in a quasi-phase-matching scheme. Second-order nonlinear optical rectification of femtosecond pulses gives rise to a terahertz waveform whose multi-frequency modes are determined by the aperiodic structure properties. The relationship between multi-frequency modes terahertz generation and aperiodic structure parameters is also analyzed and studied.
Keywords :
lithium compounds; optical pulse generation; submillimetre wave generation; superlattices; LiNbO3; aperiodic domain-inverted optical superlattice; aperiodic optical superlattice; femtosecond pulses; multifrequency terahertz radiation generation; quasi-phase-matching scheme; second-order nonlinear optical rectification; terahertz waveform; Frequency; Nonlinear optics; Optical design; Optical harmonic generation; Optical imaging; Optical pulses; Optical refraction; Optical superlattices; Submillimeter wave technology; Ultrafast optics;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368652
