Telecom-wavelength compatible THz n-i-pn-i-p superlattice photomixers for spectroscopical applications

Author

Preu, Sascha ; Malzer, Stefan ; Döhler, Gottfried H. ; Wang, Lijun ; Lu, Hong ; Gossard, Arthur C.

Author_Institution

Max-Planck Inst. for the Sci. of Light, Erlangen, Germany

fYear

2009

fDate

Nov. 3 2009-Oct. 6 2009

Firstpage

81

Lastpage

82

Abstract

We report on the progress of room-temperature operating, continuous-wave, tunable n-i-pn-i-p superlattice THz photomixers, compatible with 1.55 Â¿m telecom laser systems. An output power of 0.2 Â¿W at 1 THz has been achieved at a photocurrent of 9.4 mA, using a broadband antenna. The spectral power is at a level where high resolution spectroscopy becomes attractive. This is demonstrated by measuring the absorption spectrum of water vapor between 0.4 and 1.6 THz.

Keywords

broadband antennas; microwave mixers; microwave photonics; photoconductivity; photoemission; semiconductor superlattices; terahertz spectroscopy; water; H₂O; absorption spectra; broadband antenna; continuous-wave tunable n-i-pn-i-p superlattice THz photomixers; current 9.4 mA; frequency 0.4 THz to 1.6 THz; high resolution spectroscopy; photocurrent; telecom laser systems; temperature 293 K to 298 K; water vapor; Absorption; Broadband antennas; Frequency; Laser tuning; Photoconductivity; Power lasers; Spectroscopy; Superlattices; Telecommunications; Tunable circuits and devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Terahertz and Mid Infrared Radiation: Basic Research and Practical Applications, 2009. TERA-MIR 2009. International Workshop

Conference_Location

Turunc-Marmaris

Print_ISBN

978-1-4244-3848-8

Electronic_ISBN

98-1-4244-3849-5

Type

conf

DOI

10.1109/TERAMIR.2009.5379619

Filename

5379619