Title :
Frequency conversion using a moving plasma front generated optically in transmission lines - theoretical analyses
Author :
Bae, J. ; Mizuno, K.
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
A novel method for frequency conversion using a transmission line on a semiconductor substrate has been presented. Laser pulses move along the transmission line while generating an electron-hole plasma at the surface of the semiconductor substrate. The plasma in the transmission line acts as a moving short with a relativistic velocity, reflecting an incident microwave and up-shifting the frequency through the double Doppler effect. Power and energy conversion efficiencies have been theoretically analyzed for the frequency conversion. The results have shown that the converter can be used to produce short millimeter and submillimeter waves.
Keywords :
Doppler effect; electromagnetic wave reflection; high-frequency transmission lines; microwave frequency convertors; microwave photonics; radiowave propagation; semiconductor plasma; submillimetre wave generation; double Doppler effect; electron-hole plasma generation; energy conversion efficiency; frequency conversion; frequency converter; frequency up-shifting; incident microwave reflection; laser pulses; moving short; optically generated moving plasma front; power conversion efficiency; relativistic velocity; semiconductor substrate surface; short millimeter waves; submillimeter waves; transmission line plasma; transmission lines; Frequency conversion; Laser theory; Masers; Optical pulse generation; Optical surface waves; Plasmas; Power transmission lines; Semiconductor lasers; Substrates; Transmission line theory;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1212623
