[19a-PA2-1~26] 3.9 テラヘルツ全般

▲ [19a-PA2-3] Enhanced THz emission of silicon nanowire-coated gallium arsenide photoconductive antenna

Neil Irvin Cabello¹、Alexander De Los Reyes¹、Joybelle Lopez¹、Vladimir Sarmiento¹、John Paul Ferrolino¹、Maria Angela Faustino¹、Victor DC Andres Vistro¹、Clairecynth Yu¹、Hannah Bardolaza¹、Miezel Talara²、Masaki Shiihara²、Valynn Mag-usara²、Jessica Afalla²、Hideaki Kitahara²、Masahiko Tani²、Arnel Salvador¹、Armando Somintac¹、〇Elmer Surat Estacio¹ (1.U.P. Diliman、2.Univ. of Fukui)

キーワード：terahertz, nanostructures, photoconductive antenna

We report on the enhancement of the THz emission from a GaAs photoconductive antenna (PCA) coated with silicon nanowires (SiNWs). The PCA was fabricated by patterning a 10 μm bowtie antenna on a semi-insulating GaAs. The SiNWs were fabricated using metal-assisted chemical etching and were applied onto the PCA using simple drop-cast method. The increased THz intensity was attributed to improved photoabsorption resulting from the application of the SiNWs.