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Y.Y. Lau
Researcher at University of Michigan
Publications - 165
Citations - 1037
Y.Y. Lau is an academic researcher from University of Michigan. The author has contributed to research in topics: Cathode & Magnetic field. The author has an hindex of 15, co-authored 156 publications receiving 929 citations.
Papers
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Journal ArticleDOI
Beyond the Child–Langmuir law: A review of recent results on multidimensional space-charge-limited flow
John W. Luginsland,John W. Luginsland,Y.Y. Lau,R. J. Umstattd,R. J. Umstattd,J.J. Watrous,J.J. Watrous +6 more
TL;DR: In this article, the analytic and computational extensions to the one-dimensional Child-Langmuir law are reviewed, the accuracy of SCL emission algorithms are assessed, and the experimental implications of multidimensional SCL flows are discussed.
Journal ArticleDOI
Effects of pulse-length and emitter area on virtual cathode formation in electron guns
Agust Valfells,Agust Valfells,D. W. Feldman,D. W. Feldman,M. Virgo,M. Virgo,Patrick G. O'Shea,Patrick G. O'Shea,Y.Y. Lau +8 more
TL;DR: O'Shea et al. as discussed by the authors showed that a much higher current density may be drawn from a short pulse or limited emitter area than is anticipated by the Child-Langmuir limiting current, which leads a distinction between a limiting current density and a current density critical for virtual cathode formation.
Journal ArticleDOI
Microwave absorption on a thin film
TL;DR: In this paper, it was shown that a thin film of contaminant on a microwave window may absorb up to 50% of the incident power, even if the film thickness is only a small fraction of its resistive skin depth.
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Electron emission: From the Fowler–Nordheim relation to the Child–Langmuir law
Y.Y. Lau,Youfan Liu,R. K. Parker +2 more
TL;DR: In this paper, a planar diode with Fowler-Nordheim coefficients is presented, showing the general transition from the Fowler-nordheim relation to the Child-Langmuir law.
Journal ArticleDOI
Novel scaling laws for the Langmuir-Blodgett solutions in cylindrical and spherical diode
TL;DR: It is found that the Langmuir-Blodgett (LB) solutions for the space charge limited current density, for both cylindrical and spherical diodes, may be approximated by J.app =(4/9)ε0(2e/m) E/c3/2/D/D 1/2 over a wide range of parameters.