Lifeng Li
University of Arizona
20 Papers
236 Citations
Lifeng Li is an academic researcher from University of Arizona. The author has contributed to research in topics: Diffraction grating & Grating. The author has an hindex of 12, co-authored 20 publications. Previous affiliations of Lifeng Li include Tsinghua University.
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Papers
Rigorous and efficient grating-analysis method made easy for optical engineers
TL;DR: The C method is reformulated without using any knowledge of tensor, thus, it is hoped, making the C method more accessible to optical engineers.
252
High-efficiency metallic diffraction gratings for laser applications
R. D. Boyd,Jerald A. Britten,D. Decker,Bruce W. Shore,Brent C. Stuart,Michael D. Perry,Lifeng Li +6 more
TL;DR: The design and fabrication of large-area, high-efficiency metallic gratings for use in high-power laser systems is described and a simple theory for optical damage to metallic diffraction gratings is developed.
143
Broad-Band Attenuated Total Reflection Spectroscopy of a Hydrated Protein Film on a Single Mode Planar Waveguide
TL;DR: In this paper, a multichannel spectrometer based on a single mode planar integrated optical waveguide and capable of measuring broad-band visible absorbance spectra of a weakly absorbing molecular film at a solid−liquid interface is reported.
51
Some topics in extending the C method to multilayer gratings of different profiles
TL;DR: In this article, the differential formalism of Chandezon et al (the C method) was extended to treat layered gratings in which the profiles of the medium interfaces within the same grating are different from each other.
48
Effects of beam focusing on the efficiency of planar waveguide grating couplers.
Lifeng Li,Mool C. Gupta +1 more
TL;DR: In this article, a theoretical and experimental investigation into the variation of coupling efficiency with coupling angle is presented for various beam focusing conditions for an integrated optical grating coupler, showing that the acceptance angle can be broadened, within a relatively large range and with a relatively small loss in coupling efficiency, by focusing the incident laser beam.