Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-03-04
2000-02-22
Pascel, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
356345, 359 10, 359 30, 359160, 359176, 359180, 359193, 365112, H04B 1010, G01J 108, G02F 121, G03H 100
Patent
active
060286865
ABSTRACT:
A generator of energy-depleted radiation and various methods and applications using the energy-depleted radiation. Various embodiments are disclosed of the energy-depleted radiation generator and an energy-restored radiation generator, which permits detection of wave properties of the radiation without regard to the depletion of its energy. The energy-depleted radiation generator functions in one embodiment by selective transmission of destructively interfering radiation. Other embodiments use two-beam coupling or directional coupling to achieve energy depletion. Restoring energy to an energy-depleted radiation beam is accomplished by transferring energy to it from a reference beam, in a beam-to-beam transfer or in an optical amplifier. The invention has important applications in fields such as communications, specimen analysis, photorefractive recording, holography, and other fields in which the reduction of energy content in the associated radiation is advantageous.
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Mirell Daniel Joseph
Mirell Stuart Gary
Heal Noel F.
Pascel Leslie
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