نتایج جستجو برای: optical recording
تعداد نتایج: 319300 فیلتر نتایج به سال:
چکیده ندارد.
Recording of periodic variations of amplitude and phase by the interference of coherent laser beams in a hologram offers a natural means for creating one-, two-, and three-dimensional photonic crystals. For device applications such as waveguides in optical communications, one usually needs to create defects in photonic crystals. We present an analysis and an experimental demonstration of a doub...
The improvements made in diffusion models simulating phase image recording in photopolymers enable the optimization of a wide range of complex diffractive optical elements (DOEs), while the miniaturization of spatial light modulators makes it possible to generate both symmetric and non-symmetric DOEs. In addition, there is increasing interest in the design of new friendly recording materials. I...
We consider optical disks consisting of several stacked layers, one of which is a recording layer which consists of a dye (for write once disks) or a phase-change material (for rewritable disks). Due to the illumination by a laser spot the temperature increases locally in the disk. The pulsing laser spot writes marks in the recording layer that represent the digitally encoded data. To guide the...
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