Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Charles D. Hoke"'
Autor:
Vijaya B. Reddy, Andrew Ghetler, Yang Han, Richard P. Tella, Jai Raman, Christopher Ryan Moon, Rohit Bhargava, Saumya Tiwari, Charles D. Hoke
Publikováno v:
Analytical chemistry. 88(20)
Fourier transform infrared (FT-IR) spectroscopic imaging has been widely tested as a tool for stainless digital histology of biomedical specimens, including for the identification of infiltration and fibrosis in endomyocardial biopsy samples to asses
Autor:
R. Helbing, Charles D. Hoke, O. Landolt, Peter R. Robrish, Ken A. Nishimura, J. Ertel, R. Trutna
Publikováno v:
Journal of Lightwave Technology. 24:1674-1680
The authors describe a reconfigurable optical add-drop multiplexer designed for 50-GHz channel spacing over either the C- or L-bands. The system may also function as a variable optical attenuator. The design features a reflective liquid-crystal modul
Publikováno v:
Japanese Journal of Applied Physics. 41:2939-2943
The multidimensional alignment (MDA) technique realized by the polymer wall has been previously proposed as a means to stabilize the liquid crystal configurations for twist angles of 0 and 2π so that very low power and real bistable twisted nematic
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 304:113-124
We have investigated the hysteretic electro-optic behavior of super-twisted nematic (STN) displays with the twist angies larger than 270°. A pair of Lagrange's equations based on the continuum theory were solved numerically. The Gibbs energy and ela
The Effect of Polymer Networks on the Electrodistortional Characteristics of Nematic Liquid Crystals
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 301:261-266
The effect of polymer networks is studied for highly twisted nematic liquid crystals. A numerical relaxation technique was used to minimize the free energy density of a liquid crystal medium. Assuming the networks are distributed uniformly, an polyme
Autor:
Charles D. Hoke, Philip J. Bos
Publikováno v:
Journal of Applied Physics. 88:2302-2304
An alignment technique for liquid crystal devices is presented that consists of polymer walls made from monomers that are oriented by an electric field while cured with a spatially patterned UV light source. The technique provides defined boundary co
Publikováno v:
Japanese Journal of Applied Physics. 36:L227
In this letter we report the results of an investigation on the dynamics and optics of a twist bistable liquid crystal display. For the first time, the parameters required for high speed addressing of a 0°–360° bistable device are presented. The
Publikováno v:
Japanese Journal of Applied Physics. 35:L1342
The polymer networks formed in nematic liquid crystals at high-field condition are studied. Assuming the networks are distributed uniformly, an polymer network contribution to the system free energy is added in the form of -½K a(n·N)2, where K a, n
Publikováno v:
Japanese Journal of Applied Physics. 35:L706
The bistable electro-optic effect of highly twisted nematic liquid crystals was studied. A numerical relaxation technique was used to minimize the free energy density of a liquid crystal medium. The director configurations at an applied field, especi
Publikováno v:
Journal of the Society for Information Display. 4:95
— Low-Δnd SBE displays are optimized for brightness using LCD optics software. These low-Δnd (about 0.5 to 0.6 μm) SBE displays, or optical-mode interference (OMI) displays, have the inherent qualities of large cell-gap tolerances and low colora