title: Compact fiber-pigtailed InGaAs photoconductive antenna module for terahertz-wave generation and detection.
abstract: We propose a compact fiber-pigtailed InGaAs photoconductive antenna (FPP) module having an effective heat-dissipation solution as well as a module volume of less than 0.7 cc. The heat-dissipation of the FPP modules when using a heat-conductive printed circuit board (PCB) and an aluminium nitride (AlN) submount, without any cooling systems, improve by 40% and 85%, respectively, when compared with a photoconductive antenna chip on a conventional PCB. The AlN submount is superior to those previously reported as a heat-dissipation solution. Terahertz time-domain spectroscopy (THz-TDS) using the FPP module perfectly detects the absorption lines of water vapor in free space and an α-lactose sample.
authors.affiliation: THz Photonics Creative Research Center, ETRI, Daejeon 305-700, South Korea.
authors.forename: Sang-Pil
authors.initials: SP
authors.lastname: Han
authors.forename: Namje
authors.initials: N
authors.lastname: Kim
authors.forename: Hyunsung
authors.initials: H
authors.lastname: Ko
authors.forename: Han-Cheol
authors.initials: HC
authors.lastname: Ryu
authors.forename: Jeong-Woo
authors.initials: JW
authors.lastname: Park
authors.forename: Young-Jong
authors.initials: YJ
authors.lastname: Yoon
authors.forename: Jun-Hwan
authors.initials: JH
authors.lastname: Shin
authors.forename: Dong Hun
authors.initials: DH
authors.lastname: Lee
authors.forename: Sang-Ho
authors.initials: SH
authors.lastname: Park
authors.forename: Seok-Hwan
authors.initials: SH
authors.lastname: Moon
authors.forename: Sung-Wook
authors.initials: SW
authors.lastname: Choi
authors.forename: Hyang Sook
authors.initials: HS
authors.lastname: Chun
authors.forename: Kyung Hyun
authors.initials: KH
authors.lastname: Park