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Method for forming spatially-varying distributed Bragg reflectors in optical media
We have discovered a new method for making gratings, such as Bragg gratings, having spatially dependent periods. In contrast to prior an methods, the period can be ...
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Cascaded self-induced holography
To address the foregoing problems, the present invention provides a method and apparatus for fabricating submicron periodic gratings and other fine patterns in optical ...
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Writing Bragg gratings in optical waveguides
It is an object of the present invention to provide a method of writing a Bragg reflection grating in an optical waveguide using a diffraction grating located at a ...
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Optical logic device and optical memory device
The invention has been developed in view of the circumstances described above, and an object of the invention is to provide an optical logic device having a simple ...
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Non-aqueous electrolyte cell
An object of the present invention, therefore, is to provide a non-aqueous electrolyte cell capable of drastically improving a high rate discharge characteristic after ...
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Incandescent light with parallel grooves encompassing a bulbous portion
In accordance with the illustrative embodiments illustrating features and advantages of the present invention, there is provided an incandescent light having an ...
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Cable grid spectral lighting system
OF THE INVENTION As shown in FIGS. 1 and 2, the basic components of the trapeze grid lighting system are the support cables 1 charged with positive low voltage current, ...
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LTG AlGaAs non-linear optical material and devices fabricated therefrom
The foregoing problems are overcome and the objects of the invention are realized by a light responsive device having a body that includes a semiconductor material that ...
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Method and apparatus for optical data storage using non-linear heating by excited state absorption for the alteration of pre-formatted holographic gratings
OF THE INVENTION In a presently preferred embodiment of the present invention, by way of example and not necessarily by way of limitation, an optical data storage ...
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Encrypted holographic data storage based on orthogonal phase code multiplexing
In a method of the present invention, a data page S.sub.m is stored using a reference beam R.sub.m whose wavefront is modulated using a phase function W.sub.m and an ...
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