CPC G01J 1/4257 (2013.01) [G01B 21/08 (2013.01); G01J 1/0403 (2013.01); G01J 1/0414 (2013.01)] | 20 Claims |
1. A gravity-enforced photon momentum radiometer for measuring optical power of laser light, the gravity-enforced photon momentum radiometer comprising:
a magnetic array that produces a diamagnetic levitation force;
a diamagnetic shuttle disposed proximate to the magnetic array such that the diamagnetic shuttle is in communication with the magnetic array and subjected to the diamagnetic levitation force from the magnetic array whereby the diamagnetic shuttle levitates above the magnetic array in response to the diamagnetic levitation force;
a mirror disposed on the diamagnetic shuttle and that receives an incident optical force from the laser light and moves, in response to receipt of the incident optical force, the diamagnetic shuttle in a direction of propagation of the laser light;
a tiltable platform on which is disposed the magnetic array, such that the magnetic array is interposed between the tiltable platform and the diamagnetic shuttle, wherein the tiltable platform positions the magnetic array at a tilt angle with respect to a reference platform, wherein tilt angle β depends on an amount of the incident optical force received by the mirror, and tilt angle β changes based on the amount of the incident optical force received by the mirror;
a photogate comprising an optical source that transmits gate light and a detector that detects the gate light from the photogate and produces a detector signal based on the amount of the gate light detected, wherein the gate light is subject to being blocked by a photo interrupter, the amount of blocking by the photo interrupter being dependent upon the position of the diamagnetic shuttle relative to the photogate as modified by the amount of the incident optical force received by the mirror, such that the detector signal provides a position of the diamagnetic shuttle relative to the tiltable platform; and
the photo interrupter disposed on the diamagnetic shuttle, and that moves relative to the photogate based on movement of the diamagnetic shuttle, and blocks the gate light as a function of the movement of the diamagnetic shuttle caused by receipt of the laser light by the mirror.
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