[12p-N303-1~11] 13.6 Nanostructures, quantum phenomena, and nano quantum devices

[12p-N303-9] Photo-electrical Characterization of Photoconductive Antenna with Multiple-Stacked InAs/GaAs Quantum Dots Using Photocurrent Mapping Technique

〇Yasuo Minami^1,2, Reo Nakatsuka¹, Takahiro Kitada¹, Yukihiro Harada³, Toshiyuki Kaizu³, Osamu Kojima³, Takashi Kita³, Osamu Wada⁴ (1.Tokushima Univ., 2.pLED, Tokushima Univ., 3.Grad. Sch. of Eng., Kobe Univ., 4.Kobe Univ.)

Keywords:InAs/GaAs quantum dots, Photoconductive Antenna

Photoconductive antenna (PCA) with a substrate made of multiple-stacked InAs/GaAs quantum dots which works in communication band with the light wavelength of 1.3, 1.5 um were developed. In this study, we measured photo current in a gap of dipole antenna on a substrate with multiple-stacked InAs/GaAs QDs induced by a laser light with wavelength of 532 nm, and obtained a mapping image of photo-induced current.