|   | 
Details
   web
Records
Author Yu, B; Zeng, F; Yang, Y; Xing, Q; Chechin, A; Xin, X; Zeylikovich, I; Alfano R. R.
Title Torsional vibrational modes of tryptophan studied by terahertz time-domain spectroscopy Type Journal Article
Year 2004 Publication Biophys. J. Abbreviated Journal
Volume 86 Issue 3 Pages 1649-1654
Keywords (down) THz applications
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 491
Permanent link to this record
 

 
Author Sobolewski, R.; Verevkin, A.; Gol’tsman, G. N.
Title Superconducting optical single-photon detectors Type Conference Article
Year 2004 Publication CLEO/QELS Abbreviated Journal CLEO/QELS
Volume Issue Pages IThD1
Keywords (down) SSPD, QE, jitter, dark counts
Abstract We review the development of superconducting single-photon detectors. The devices are characterized by experimental quantum efficiency of ~8% for infrared photons, counting rate ~2 GHz, 18 ps jitter, and <0.01 per second dark counts.
Address
Corporate Author Thesis
Publisher Optical Society of America Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Sobolewski:04 Serial 1489
Permanent link to this record
 

 
Author Korneev, A.; Kouminov, P.; Matvienko, V.; Chulkova, G.; Smirnov, K.; Voronov, B.; Gol'tsman, G. N.; Currie, M.; Lo, W.; Wilsher, K.; Zhang, J.; Słysz, W.; Pearlman, A.; Verevkin, A.; Sobolewski, Roman
Title Sensitivity and gigahertz counting performance of NbN superconducting single-photon detectors Type Journal Article
Year 2004 Publication Appl. Phys. Lett. Abbreviated Journal Appl. Phys. Lett.
Volume 84 Issue 26 Pages 5338-5340
Keywords (down) SSPD, NEP, QE
Abstract We have measured the quantum efficiencysQEd, GHz counting rate, jitter, and noise-equivalentpowersNEPdof nanostructured NbN superconducting single-photon detectorssSSPDsdin thevisible to infrared radiation range. Our 3.5-nm-thick and 100- to 200-nm-wide meander-typedevices(total area 10310mm2), operating at 4.2 K, exhibit an experimental QE of up to 20% inthe visible range and,10% at 1.3 to 1.55mm wavelength and are potentially sensitive up tomidinfrareds,10mmdradiation. The SSPD counting rate was measured to be above 2 GHz withjitter,18 ps, independent of the wavelength. The devices’ NEP varies from,10−17W/Hz1/2for1.55mm photons to,10−20W/Hz1/2for visible radiation. Lowering the SSPD operatingtemperature to 2.3 K significantly enhanced its performance, by increasing the QE to,20% andlowering the NEP level to,3310−22W/Hz1/2, both measured at 1.26mm wavelength.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-6951 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 532
Permanent link to this record
 

 
Author Koshelets, V. P.
Title Integrated superconducting submm receivers Type Miscellaneous
Year 2004 Publication Abbreviated Journal
Volume Issue Pages
Keywords (down) SIR
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Presentation Approved no
Call Number Serial 511
Permanent link to this record
 

 
Author
Title Statue of the SIR program for SR&T (extension to 1 THz) Type Miscellaneous
Year 2004 Publication Abbreviated Journal
Volume Issue Pages
Keywords (down) SIR
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Presentation Approved no
Call Number Serial 512
Permanent link to this record
 

 
Author Koshelets, V. P.; Dmitriev, P. N.; Ermakov, A. B.; Filippenko, L. V.; Khudchenko, A. V.; Koryukin, O. V.; Torgashin, M. Yu.; Hoogeveen, R.; Vreeling, W. J.; Yagoubov, P.
Title SIR for TELIS (post-critical) review Type Miscellaneous
Year 2004 Publication Abbreviated Journal
Volume Issue Pages
Keywords (down) SIR
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Presentation Approved no
Call Number Serial 516
Permanent link to this record
 

 
Author Ciulin, V.; Carter, S. G.; Sherwin, M. S.
Title Terahertz optical mixing in biased GaAs single quantum wells Type Journal Article
Year 2004 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B
Volume 70 Issue 11 Pages 115312-(1-6)
Keywords (down) optical mixing
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1098-0121 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 501
Permanent link to this record
 

 
Author Genack, Azriel Z.; Kopp, Victor I.; Churikov, Victor M.; Singer, Jonathan; Chao, Norman; Neugroschl, Daniel A.
Title Chiral fiber Bragg gratings Type Conference Article
Year 2004 Publication Proceedings of the SPIE Abbreviated Journal Proc. SPIE
Volume 5508 Issue Pages 57-64
Keywords (down) optical fiber gratings, chiral fiber gratings, chiral gratings, from chiralphotonics
Abstract We have produced chiral fiber Bragg gratings with double-helix symmetry and measured the polarization and wavelength selective transmission properties of these structures. These gratings interact only with circularly polarized light with the same handedness as the grating twist and freely transmit light of the orthogonal polarization. The optical characteristics of chiral fibers are compared to those of planar cholesteric structures. The resonant standing wave at the band edge or at a defect state within the band gap, as well as the evanescent wave within the band gap is comprised of two counterpropagating components of equal amplitude. The electric field vector of such a circularly polarized standing wave does not rotate in time; rather it is linearly polarized in any given plane. The standing wave may be described in terms of the sense of circular polarization of the two counterpropagating components. The wavelength dependence of the angle q between the linearly polarized electromagnetic field and the extraordinary axis, which is constant throughout a long structure, is obtained in a simple calculation. The results are in good agreement with scattering matrix calculations. Resonant chiral gratings are demonstrated for microwave radiation whereas chiral gratings with pitch exceeding the wavelength are demonstrated at optical wavelengths in single-mode glass fibers. The different functionalities of these fibers are discussed.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 854
Permanent link to this record
 

 
Author Kramer, B.; Chen, C-C.; Volakis, J.D.
Title The development of a mini-UWB antenna Type Journal Article
Year 2004 Publication Measurement and Techniques Association Symposium Abbreviated Journal AMTA
Volume Issue Pages 6
Keywords (down) optical antennas; Ultra Wide Band; Spiral Antenna, Dielectric Loading
Abstract There is a great interest in the automotive and military sectors for small and broadband antennas that meet modern communication needs. These needs require ultra-wide bandwidth (>10:1) UWB antennas, such as the spiral antenna. However, the physical size at the low-frequency end typically becomes too large for practical applications. To reduce the size of the antenna, miniaturization techniques must be employed such as the use of high-contrast dielectric materials. Size reduction using high-contrast materials has been demonstrated for narrowband antennas, such as patch antennas, but not for broadband antennas to our knowledge. Therefore, the concept of miniaturizing a broadband spiral antenna using dielectric materials will be investigated experimentally and numerically.Issues that arise from dielectric loading such as impedance reduction will also be addressed. It will be shown using the results from these studies that there are practical limitations to the amount of miniaturization which can be achieved.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number RPLAB @ gujma @ Serial 751
Permanent link to this record
 

 
Author González, Francisco Javier; Alda, Javier; Ilic, Bojan; Boreman, Glenn D.
Title Infrared Antennas Coupled to Lithographic Fresnel Zone Plate Lenses Type Journal Article
Year 2004 Publication Applied Optics Abbreviated Journal Appl. Opt.
Volume 43 Issue 33 Pages 6067-6073
Keywords (down) optical antennas
Abstract Several designs for Fresnel zone plate lenses (FZPLs) to be used in conjunction with antenna-coupled infrared detectors have been fabricated and tested. The designs comprise square and circular FZPLs with different numbers of Fresnel zones working in transmissive or reflective modes designed to focus infrared energy on a square-spiral antenna connected to a microbolometer. A 163× maximum increase in response was obtained from a 15-zone circular FZPL in the transmissive mode. Sensor measurements of normalized detectivity D* resulted in a 2.67× increase with FZPLs compared with measurements made of square-spiral antennas without FZPLs. The experimental results are discussed and compared with values obtained from theoretical calculations.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number RPLAB @ gujma @ Serial 740
Permanent link to this record