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Optics Letters

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  • Vol. 30, Iss. 11 — Jun. 1, 2005
  • pp: 1405–1407

Asynchronous optical sampling for high-speed characterization of integrated resonant terahertz sensors

C. Janke, M. Först, M. Nagel, H. Kurz, and A. Bartels  »View Author Affiliations


Optics Letters, Vol. 30, Issue 11, pp. 1405-1407 (2005)
http://dx.doi.org/10.1364/OL.30.001405


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Abstract

Two femtosecond Ti:sapphire lasers with slightly different repetition rates near 1 GHz are coupled to implement high-speed asynchronous optical sampling. The application of this technique is successfully demonstrated in the field of terahertz time-domain spectroscopy (TDS). A time delay of 1 ns is scanned at a frequency of 5 kHz without moving mechanical parts. Compared with that of conventional TDS schemes based on lock-in detection and moving mirrors, the readout time of integrated resonant THz sensors is reduced by a factor of 20, opening the way for high-throughput THz sensing in marker-free DNA analysis.

© 2005 Optical Society of America

OCIS Codes
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(320.7100) Ultrafast optics : Ultrafast measurements

Citation
C. Janke, M. Först, M. Nagel, H. Kurz, and A. Bartels, "Asynchronous optical sampling for high-speed characterization of integrated resonant terahertz sensors," Opt. Lett. 30, 1405-1407 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-11-1405


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