G - Physics – 02 – F
Patent
G - Physics
02
F
88/114
G02F 1/01 (2006.01) G02F 1/17 (2006.01) G02F 1/29 (2006.01) G02F 2/02 (2006.01) G11C 13/04 (2006.01)
Patent
CA 2027252
ABSTRACT OF THE DISCLOSURE A novel, high-speed spatial light modulator utilizing electron trapping materials. The electron trapping material is exposed to a pattern of modulating radiation, resulting in the excitation of electrons in the material at spatial locations corresponding to the pattern. When the light to be modulated (ordinarily coherent light) is simultaneously or subsequently passed through the material, it is absorbed in areas of the material where electrons have been excited. The unabsorbed modulated light passes through the electron trapping material, producing a negative image of the pattern of modulating radiation. The electron trapping material also emits an image of incoherent visible light as the released electrons fall back to the ground state. This visible image can be filtered out if the device is only being used for modulating coherent light. Conversely, the device can be utilized by detecting only the incoherent visible emission from the electron trapping material, which constitutes a multi- plicative product image of the electron exciting and electron releasing light incident on the electron trapping material.
Jutamulia Suganda
Podraczky Emeric I.
Storti George M.
Wriggley Charles Y.
Jutamulia Suganda
Mccarthy Tetrault Llp
Podraczky Emeric I.
Quantex Corporation
Storti George M.
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