Title :
Efficient low-power autocorrelation measurement with carbon nanotube photoconductors
Author :
Heshmat, Barmak ; Pahlevaninezhad, Hamid ; Darcie, Thomas Edward
Author_Institution :
Dept. of Electr. & Comput. Eng, Univ. of Victoria, Victoria, BC, Canada
Abstract :
We investigate using a carbon nanotube (CNT) based photoconductive device for autocorrelation measurement. The device shows superior signal level (more than double) for optical powers less than 100μW compared to similar devices fabricated on semi-insulating GaAs and InGaAs. This device can be used to align, characterize, and monitor beams of ultrafast pulses within the nanowatt range of average optical power. This also allows a nondestructive method to study delicate CNT samples with nanofeatures.
Keywords :
III-V semiconductors; carbon nanotubes; gallium arsenide; indium compounds; nondestructive testing; photoconducting materials; InGaAs; carbon nanotube photoconductors; low-power autocorrelation measurement; nanowatt range; nondestructive method; optical powers less; power 100 muW; semi-insulating materials; superior signal level; ultrafast pulses; Carbon nanotubes; Correlation; Measurement by laser beam; Optical pulses; Photoconductivity; Semiconductor lasers; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
