Volume holograms in transparent materials
AssigneeU. C. Laser Ltd.
InventorsNikolay Nikolaevich Guletsky, Vladimir Yurevich Dmitriev, Sergey Viktorovich Oshemkov
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Abstract
This invention discloses a method of producing, in a solid transparent material (3), a hologram of an object; the method includes the steps of: developing a three-dimensional mathematical model of an electro-magnetic field emanating from the object, the field producing an image of the object; computing a corresponding three-dimensional set of points, light scattered from which reconstructs the field; and focusing a pulsed laser beam into the solid transparent material onto each of the points sequentially, the beam being capable, when focused, of causing optical breakdown in the solid transparent material.
Claims8
A method of producing in a solid transparent material, a hologram of an object, comprising the steps of:
- developing a three-dimensional mathematical model of an electro-magnetic field emanating from said object, said field producing an image of said object;
- providing a pulsed laser beam, said beam being capable, when focused, of causing optical breakdown damage in said solid transparent material, each point of said optical breakdown damage being a light scattering center;
- computing a three-dimensional set of points, such that light scattered from scattering centers located at said set of points holographically reconstructs said three-dimensional model;
- and
- focusing said pulsed laser beam within said solid transparent material to create a set of scattering centers corresponding to said computed three-dimensional set of points, said set of scattering centers, collectively defining said hologram.
Dependencies are inferred from the claim text.