Holographic Interference Pattern Recording Apparatus and Recording Method Using Same
AssigneeLG Chem, Ltd.
InventorsMin Soo Song, Sung Yeon Kim, Yeon Jae Yoo, Joon Young Lee
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Abstract
Proposed are an apparatus for recording a holographic interference pattern and a method of recording a holographic interference pattern using the apparatus, the apparatus and the method being capable of simplifying a process of aligning a light source and a photosensitive material in order to record a holographic interference pattern on a three-dimensional coordinate system and then realigning the light source and the photosensitive material in order to record a different holographic interference pattern.
Claims8
A method of recording a holographic interference pattern, the method comprising:
- identifying optical paths formed by a path for reproduction light and a path for diffraction light, respectively, by emitting the reproduction light from a predetermined position towards a photosensitive material sample on which a first holographic interference pattern is recorded;
- arranging the optical paths in a two-dimensional coordinate system by rotating the photosensitive material sample;
- deriving a path for reference light and a path for object light in such a manner as to record a second holographic interference pattern that realizes optical paths that are the same as the optical paths in the two-dimensional coordinate system,
- providing a photosensitive material on which the second holographic interference pattern is to be recorded, and
- emitting the reference light and the object light from predetermined positions, respectively, on the path for the reference light and the path for the object light, thereby recording the second holographic interference pattern.
The method of 1, wherein the providing of the photosensitive material on which the second holographic interference pattern is to be recorded includes aligning the photosensitive material in a same manner as the photosensitive material sample that has been rotated.
An apparatus for recording a holographic interference pattern, the apparatus comprising:
- a photosensitive material fixation unit configured to fix a position of a photosensitive material for recording thereon of a second holographic interference pattern, the second holographic interference pattern realizing optical paths that are the same as optical paths realized by a first holographic interference pattern recorded on a photosensitive material sample;
- a reference light emission unit configured to emit reference light towards the photosensitive material;
- an object light emission unit configured to emit object light towards the photosensitive material;
- a stage unit to which the photosensitive material fixation unit, the reference light emission unit, and the object light emission unit are fixed at predetermined positions, respectively;
- and
- a computation unit configured to derive the predetermined positions,
- wherein apparatus is configured to record the second holographic interference pattern formed due to a phenomenon of interference between the reference light and the object light on the photosensitive material.
Dependencies are inferred from the claim text.