17 July 1996 Dynamic holographic interferometric-DHI sensor on adaptive supergrating
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Abstract
A novel DHI technique of precise targeting of moving object in space has been made. The major advantage of this technique is automatic self-adjustment of volume adaptive supersmall (0. 12 mm) holographic grating in a new syntezed double doped photorefractive crystal of BTO. This results in the creation of 70 % diffraction efficiency adaptive holographic grating using 0.632 mm laser radiation. The targeting angle deviation of 10 radians in real time testing has been verified using low power CW He-. Ne laser at a distance of0.5 meter.
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George Eugene Dovgalenko, Irina I. Loutchkina, "Dynamic holographic interferometric-DHI sensor on adaptive supergrating", Proc. SPIE 2860, Laser Interferometry VIII: Techniques and Analysis, (17 July 1996); doi: 10.1117/12.276310; https://doi.org/10.1117/12.276310
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KEYWORDS
Crystals

Laser crystals

Nonlinear crystals

Holography

Mirrors

Diffraction

Sensors

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