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You searched on: Author: chih-ming wang

Displaying records 41 to 50 of 68 records.
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41. Interlaboratory Comparison of Magnetic Thin Film Measurements
Series: Journal of Research (NIST JRES)
Report Number: of
Published: 4/1/2003
Authors: F C Da silva, Chih-Ming Wang, D P Pappas
Abstract: A potential low magnetic moment standard reference material (SRM) was studied in an interlaboratory comparison. The mean and the standard deviation of the saturation moment m/s, the remanent moment m/^ur^, and the intrinsic coercivity H/c of nine sa ...

42. Accuracy of AlGaAs Rates and Composition Determination Using RHEED Oscillations
Published: 9/1/2002
Authors: Todd E Harvey, Kristine A Bertness, Chih-Ming Wang, Jolene D Splett
Abstract: Reflection high-energy electron diffraction (RHEED) oscillations are widely used in molecular beam epitaxy (MBE) as a technique to calibrate material growth rates. The growth rates are used to predict the composition of the following growth run. For ...

43. Effects of Noise Level in Fitting In-Situ Optical Reflectance Spectroscopy Data
Published: 9/1/2002
Authors: Chih-chiang Fu, Kristine A Bertness, Chih-Ming Wang
Abstract: We discuss the combination of noise level and scaling factor accuracy needed in optical reflectance spectroscopy data in order to obtain accurate parameters by fitting simulated Optical Reflectance Spectroscopy data curves with different noise level.

44. Uncertainty of Oscilloscope Timebase Distortion Estimate
Published: 2/1/2002
Authors: Chih-Ming Wang, Paul D Hale, Kevin J Coakley, Tracy S. Clement
Abstract: We study several problems related to the characterization of the timebase in high-speed sampling oscilloscopes. First, we examine the bias of using the method of the first-order approximation to estimate the additive and time jitter noises, and prese ...

45. Round Robin for Optical Fiber Bragg Grating Metrology
Series: Journal of Research (NIST JRES)
Published: 12/1/2000
Authors: Allen Rose, Chih-Ming Wang, Shellee Dawn Dyer

46. Fiber Bragg Grating Metrology Round Robin: Telecom Group
Published: 9/1/2000
Authors: Allen Rose, Chih-Ming Wang, Shellee Dawn Dyer

47. Heterodyne System at 850 nm for Measuring Photoreceiver Frequency Response
Published: 9/1/2000
Authors: Paul D Hale, Chih-Ming Wang

48. Time-Domain Measurement of the Frequency Response of High-Speed Photoreceivers to 50 GHz
Published: 9/1/2000
Authors: Tracy S. Clement, Paul D Hale, Kevin J Coakley, Chih-Ming Wang

49. Estimating the Magnitude and Phase Response of a 50 GHz Sampling Oscilloscope Using the Nose-to-Nose Method
Published: 6/1/2000
Authors: Paul D Hale, Tracy S. Clement, Kevin J Coakley, Chih-Ming Wang, Donald C. DeGroot, A. P. Verdoni
Abstract: We describe estimation of the magnitude and phase response of a sampling oscilloscope over 50 Ghz bandwidth using the nose-to-nose method. The measurements are corrected for the non-ideal properties of the oscilloscope and calibration apparatus, inc ...

50. Calibration Service of Optoelectronic Frequency Response at 1319 nm for Combined Photodiode/rf Power Sensor Transfer Standards
Series: Special Publication (NIST SP)
Report Number: 250-51
Published: 12/1/1999
Authors: Paul D Hale, Chih-Ming Wang
Abstract: Calibration Service of Optoelectronic Frequency Response at 1319 nm for Combined Photodiode/rf Power Sensor Transfer Standards

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