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You searched on: Author: edwin heilweil

Displaying records 51 to 60 of 103 records.
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51. Noninvasive Detection of Weapons of Mass Destruction Using Terahertz Radiation
Published: 7/1/2003
Authors: M BC Campbell, Edwin J Heilweil
Abstract: The growing and immediate threat of biological and chemical weapons has placed urgency on the development of chemical and biological warfare agent (CWA/BWA) and explosive material screening devices. Specifically, the ability to detect CWA/BWA or exp ...

52. Terahertz Spectroscopy of Short-Chain Polypeptides
Published: 7/1/2003
Authors: M R Kutteruf, Craig M Brown, L K Iwaki, M BC Campbell, T M Korter, Edwin J Heilweil
Abstract: Terahertz (THz) absorption and neutron vibrational spectra for solid-phase short-chain peptide sequences at 77 K and 298 K are reported. We demonstrate that a high degree of spectral and structural information exists for these systems in the 1 THz t ...

53. Non-Invasive Detection of Weapons of Mass Destruction Using Thz Radiation
Published: 1/1/2003
Authors: M J Campbell, Edwin J Heilweil

54. Vibrational Population Control in Liquid-Phase Metal Carbonyls
Published: 6/1/2002
Authors: V D Kleiman, Joseph S Melinger, Edwin J Heilweil
Abstract: Broadband picosecond and femtosecond mid-infrared chirped-pulse excitation with broadband probe techniques are being explored at NIST using multi-element, mid-infrared focal plane array detectors. Ultrafast infrared chirped IR pulse generation, dete ...

55. Applications of Ultrafast Transient Infrared Spectroscopies
Published: 5/1/2002
Authors: T Heimer, Edwin J Heilweil
Abstract: Modern techniques for performing ultrafast transient mid-infrared spectroscopy using turnable, broadband infrared probe pulses with multi-channel CCD and infrared focal plane array detection is presented. Novel application of these picosecond and fem ...

56. Applications of Ultrafast Transient Infrared Spectroscopies, ed. by H. Hamaguchi
Published: 1/1/2002
Authors: T Heimer, Edwin J Heilweil

57. Vibrational Population Control in Liquid - Phase Metal Carbonyls, ed. by Abderrazzak Douhal and Jesus Santamaria
Published: 1/1/2002
Authors: V D Kleiman, J S Melinger, Edwin J Heilweil

58. Applications of Broadband Transient Infrared Spectroscopy, ed. by M.D. Fayer
Published: 1/1/2001
Author: Edwin J Heilweil

59. Ultrafast Terahertz Spectroscopy: Measuring Low-Frequency Vibrational Modes of Hydrogen-Bonded Systems
Published: 7/1/2000
Authors: D A McWhorter, Alan L Migdall, Edwin J Heilweil
Abstract: An ultrafast terahertz spectrometer using ZnTe crystals for optical rectification and free-space electro-optic sampling has been developed to measure vibrational dynamics of biological molecules. Spectrometer characteristics and absorption spectra o ...

60. Electron Injection, Recombination and Halide Oxidation Dynamics at Dye-Sensitized Metal Oxide Interfaces
Published: 5/1/2000
Authors: T Heimer, Edwin J Heilweil, C A Bignozzi, G J Meyer
Abstract: Time-resolved infrared measurements indicate ultrafast, < 350 fs electron injection from (4,4'dcb)^d2^Ru(NCS)^d2^ (1) and (5,5'dcb)^d2^Ru(NCS)^d2^ (2) to nanostructured TiO^d2^ electrodes. {(4,4'dcb) = (4,4'-COOH-2,2'-bipyridine)} Although rapid, t ...

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