Self-pumped phase conjugation of diffusely reflected light in a KNSBN crystal
Related Experiment Video
Updated: Jun 19, 2026
10:35
Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
Published on: May 29, 2018
Optics Letters
|October 28, 2009
Abstract:
We report self-pumped phase conjugation in a Cu:KNSBN crystal for light diffusely reflected from a rough surface. We have demonstrated wave-front distortion compensation for diffuse reflection. We have experimentally studied the dependence of the phase-conjugation reflectivity on the f-number of a lens imaging the spot upon the diffuser into the crystal and on the size of the beam incident upon the diffuser surface. Finally, with a Michelson interferometer we observed the phase fluctuation of the phase-compensated wave front.
Related Concept Videos
01:29Determination of Crystal Structures
In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
02:18X-ray Crystallography
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...