Picosecond sampling with fiber-illuminated ErAs:GaAs photoconductive switches in a strong magnetic field and a cryogenic environment

Griebel, M.; Smet, J. H.; Kuhl, J.; von Klitzing, K.; Driscoll, D. C.; Kadow, C.; Gossard, A. C.
May 2003
Applied Physics Letters;5/12/2003, Vol. 82 Issue 19, p3179
Academic Journal
A sampling setup for a cryogenic environment has been developed using fiber-illuminated photoconductive switches fabricated from a material composed of equidistant layers of self-assembled ErAs nanoislands in a GaAs matrix. The setup includes dispersion compensation of the fibers and exhibits a time resolution better than 2.2 ps, which is insensitive to temperature and applied magnetic field and limited only by the properties of the coplanar waveguide circuitry. In cryogenic photocurrent autocorrelation measurements on single switches, a resolution exceeding 850 fs could be achieved.


Related Articles

  • D (donor) X center behavior for holes implied from observation of metastable acceptor states. Han, J.; Ringle, M.D. // Applied Physics Letters;12/19/1994, Vol. 65 Issue 25, p3230 

    Examines the persistent photoconductivity in nitrogen-doped p-ZnMgSe at low temperature. Explanation for the rapid increase of acceptor activation energy over zinc selenides; Role of a metastable population of holes in the conductivity increase after illumination; Observation of a lattice...

  • A cryogenic fiber maker for continuous extrusion. Aliaga-Rossel, R.; Bayley, J. // Review of Scientific Instruments;Jun98, Vol. 69 Issue 6, p2365 

    Focuses on the cryogenic fiber maker continuously extruding fibers. Basis of the fiber maker design; Composition of the fiber maker; Purpose of using two reservoirs; Use of two stage closed cycle refrigerator with a helium working fluid as cooling system.

  • A reliable nonmagnetic liquid helium tight thermal feedthrough for a fiberglass Dewar. Hibbs, A. D.; Cox, D. W. // Review of Scientific Instruments;Sep91, Vol. 62 Issue 9, p2289 

    A method for making a leak tight cryogenic joint between a copper rod and a material of much lower thermal expansion has been developed. No materials of high magnetic susceptibility are present in the seal. The technique has been used to make high conductivity thermal connections to components...

  • Cryogenic picosecond sampling using fiber-coupled photoconductive switches. Verghese, S.; Zamdmer, N. // Applied Physics Letters;5/19/1997, Vol. 70 Issue 20, p2644 

    Examines the photoconductive sampling technique developed for probing cryogenic devices. Effects of coplanar waveguide embedding and pigtailed optical fibers illumination on gallium arsenide photoconductive switches; Details on the conduction cooling of the chip in liquid helium cryostat;...

  • Monolithically integrated, resonant-cavity-enhanced dual-band mid-infrared photodetector on silicon. Wang, Jianfei; Zens, Timothy; Hu, Juejun; Becla, Piotr; Kimerling, Lionel C.; Agarwal, Anuradha M. // Applied Physics Letters;5/21/2012, Vol. 100 Issue 21, p211106 

    In this paper, we present experimental demonstration of a resonant-cavity-enhanced mid-infrared photodetector monolithically fabricated on a silicon substrate. Dual-band detection at 1.6 μm and 3.7 μm is achieved within a single detector pixel without cryogenic cooling, by using thermally...

  • Self-heated fiber Bragg grating sensors. Chen, Kevin P.; McMillen, Ben; Buric, Michael; Jewart, Chuck; Wei Xu // Applied Physics Letters;4/4/2005, Vol. 86 Issue 14, p143502 

    This letter demonstrates an approach for tuning fiber Bragg grating sensors with optical energy carried in the same optical fiber. Optical energy carried in the optical fiber was used to heat in-fiber Bragg gratings in order to alter the grating’s optical response to surrounding media....

  • Optical Fiber Power Meter Comparison Between NIST and NIM. Vayshenker, I.; Livigni, D. J.; Li, X.; Lehman, J. H.; Li, J.; Xiong, L. M.; Zhang, Z. X. // Journal of Research of the National Institute of Standards & Tec;Nov/Dec2010, Vol. 115 Issue 6, p433 

    We describe the results of a comparison of reference standards between the National Institute of Standards and Technology (NIST-USA) and National Institute of Metrology (NIM-China). We report optical fiber-based power measurements at nominal wavelengths of 1310 nm and 1550 nm. We compare the...

  • Surface-electrode ion trap with integrated light source. Tony Hyun Kim; Herskind, Peter F.; Chuang, Isaac L. // Applied Physics Letters;5/23/2011, Vol. 98 Issue 21, p214103 

    An atomic ion is trapped at the tip of a single-mode optical fiber in a cryogenic (8 K) surface-electrode ion trap. The fiber serves as an integrated source of laser light, which drives the quadrupole qubit transition of 88Sr+. Through in situ translation of the nodal point of the trapping...

  • Effect of cryogenic treatment on performance of sewing threads. Dinakaran, M.; Chandrasekaran, P. // Textile Magazine;Oct2009, Vol. 50 Issue 12, p32 

    The article discusses the effects of cryogenic treatment on the performance of sewing threads. It notes that cryogenics began during the World War II when scientists discovered that frozen metals were more resistant to wear which then led to the birth of commercial cryogenic processing in 1966....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics