Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Nathan G. Woodard"'
Publikováno v:
Review of Scientific Instruments. 70:1951-1956
We characterize the operation of large-area high-gain silicon avalanche photodiodes (APDs) at near liquid-nitrogen temperatures. The APDs that we studied have active areas of 64 mm2 and have gains of up to 20 000 at 85 K. We characterized the devices
Publikováno v:
Physical Review B. 55:5655-5658
We have developed an atomic beam technique for studying magnetic vortices and vortex lattices of superconductors. Atoms moving near a superconductor`s surface see a fluctuating magnetic field as they pass vortices. This field may drive magnetic reson
Autor:
Nathan G. Woodard, G. P. Lafyatis
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 14:332-335
We describe our work on gold surfaces that are made by peeling gold films off various smooth glass substrates. We find that we are able to routinely and reliably produce extremely smooth, large area gold surfaces: typically, for areas ≤40 μm squar
Publikováno v:
Physical Review B. 67
We report measurements of the low-field structure of the magnetic vortex lattice in an untwinned YBCO single-crystal platelet. Measurements were carried out using an atomic beam magnetic-resonance (ABMR) technique. For a 10.7 G field applied parallel
Publikováno v:
Applied Physics Letters. 64:1177-1179
We have detected single 650 nm photons with quantum efficiencies greater than 60% using a large area silicon avalanche photodiode. We cool a 5 mm diam commercially available device to 100 K and operate in the gain‐mode. For most applications—from
Autor:
Nathan G. Woodard, Richard S. Smith
Publikováno v:
Applied Physics Letters. 57:1087-1089
We report the homodyne detection of phase modulation sidebands induced on a laser beam by a coherently bunched electron beam. This provides a sensitive and nonperturbing measurement of complex Fourier time series components of the electron density. A
Publikováno v:
Applications of Photonic Technology ISBN: 9781475792492
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cf86720af6d789c381c977f19478436
https://doi.org/10.1007/978-1-4757-9247-8_93
https://doi.org/10.1007/978-1-4757-9247-8_93
Publikováno v:
Physical review letters. 69(3)
Publikováno v:
Physica C: Superconductivity. :2697-2698
We have developed an atomic beam technique for studying the Abrikosov vortex lattice. Atoms skimming the surface of a superconductor in the intermediate state experience a temporally fluctuating magnetic field due to the spatial variation of the loca
Conference
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