Compact quasi-optical Schottky detector with fast voltage response

Author

Penirschke, Andreas ; Sobornytskyy, M. ; Preu, S. ; Mittendorff, M. ; Winnerl, S. ; Hoefle, M. ; Cojocari, O. ; Jakoby, Rolf

Author_Institution

Tech. Univ. Darmstadt, Darmstadt, Germany

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

2

Abstract

Zero-bias Schottky diode detectors operated at room-temperature are the choice for applications, where the ultimate sensitivity of a cryogenic detector is not needed. Furthermore Schottky detectors are intrinsically much faster than the latter ones. This paper describes a compact quasi-optically coupled zero-bias planar Schottky-diode detector with monolithically integrated logspiral antenna for monitoring picosecond pulses of intense, coherent far-infrared radiation from the free-electron laser (FEL) FELBE at HZDR, Germany. The detector offers an intrinsic response time of less than 16.8 ps for short collimated THz pulses at 1.315 THz.

Keywords

Schottky diodes; free electron lasers; high-speed optical techniques; optical collimators; spiral antennas; FELBE; Germany; HZDR; coherent far-infrared radiation; compact quasioptically coupled Schottky-diode detector; fast voltage response; free electron laser; frequency 1.315 THz; monolithically integrated logspiral antenna; picosecond pulse monitoring; short collimated THz pulses; temperature 293 K to 298 K; zero-bias planar Schottky-diode detector; Antennas; Bandwidth; Detectors; Free electron lasers; Resistance; Schottky diodes; Time factors;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on

Conference_Location

Tucson, AZ

Type

conf

DOI

10.1109/IRMMW-THz.2014.6956027

Filename

6956027