Title :
Photoconductive terahertz emitter with an integrated semiconductor Bragg mirror
Author :
Darmo, J. ; Müller, T. ; Strasser, G. ; Unterrainer, K. ; Le, Tuan-Vu ; Tempea, G. ; Stingl, A.
Author_Institution :
Inst. fur Festkorperelektronik, TU Wien, Vienna, Austria
Abstract :
A photoconductive terahertz (THz) emitter with an integrated Bragg mirror is presented. The emitter exhibits improved emission efficiency by a factor of 10 with respect to an emitter without a mirror. In addition, we demonstrate for the first time the electrical modulation of the THz output radiation with frequencies up to 100 kHz.
Keywords :
III-V semiconductors; distributed Bragg reflectors; electro-optical modulation; gallium arsenide; infrared sources; integrated optics; integrated optoelectronics; photoconducting devices; submillimetre wave devices; 100 kHz; GaAs; THz frequency; electrical modulation; emission efficiency; integrated semiconductor Bragg mirror; output radiation; photoconductive terahertz emitter; Carrier confinement; Frequency; Gallium arsenide; Mirrors; Optical pulses; Photoconducting devices; Photoconducting materials; Photoconductivity; Power generation; Silicon;
Conference_Titel :
Advanced Semiconductor Devices and Microsystems, 2002. The Fourth International Conference on
Print_ISBN :
0-7803-7276-X
DOI :
10.1109/ASDAM.2002.1088501
