Nonlinear Optical Chromophores Having Short-Chain Bridge Structures, Low Optical Loss Materials Containing the Same, and Methods for Preparing the Same
US-2023212399-A1 · Jul 6, 2023 · US
Nonlinear optical dye, photorefractive material composition, photorefractive substrate and hologram recording medium
US9902858B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9902858-B2 |
| Application number | US-201615134802-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 21, 2016 |
| Priority date | Oct 25, 2013 |
| Publication date | Feb 27, 2018 |
| Grant date | Feb 27, 2018 |
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Abstract
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A nonlinear optical dye includes a compound represented by the general formula (1) below. In the above general formula (1), each of X 1 , X 2 , X 3 and X 4 independently represents a hydrogen atom, an alkyl group having a carbon number of 1 to 6, a halogen atom, a hydroxyl group, a nitro group, a cyano group, or a methylsulfonyl group. In the present invention, it is preferred that each of X 1 , X 2 , X 3 and X 4 independently represents a hydrogen atom, an alkyl group having a carbon number of 1 to 6, or a halogen atom. In the present invention, it is also preferred that the nonlinear optical dye has a dipole moment of 2.1 D or less and a maximum absorption wavelength within a range of 315 to 360 nm.
First claim
Opening claim text (preview).
What is claimed is: 1. A photorefractive material composition containing a nonlinear optical dye and a non-photoconductive transparent resin, wherein the nonlinear optical dye comprises a compound represented by general formula (1) below: wherein each of X 1 , X 2 , X 3 and X 4 in the general formula (1) satisfy following equation (α3): (α3) compounds in which X 1 and X 2 are each a methyl group, and X 3 and X 4 are each a hydrogen atom. 2. A photorefractive substrate obtained by forming a film-like shape of the photorefractive material composition according to claim 1 . 3. A hologram recording medium comprising the photorefractive substrate according to claim 2 .
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Classifications
made of organic materials, e.g. plastics (G02B1/08 takes precedence) · CPC title
- G02F1/3612Primary
Heterocycles having N as heteroatom · CPC title
Details {of features involved during the holographic process; Replication of holograms without interference recording} · CPC title
Organic recording material · CPC title
containing dyes · CPC title
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- What does patent US9902858B2 cover?
- A nonlinear optical dye includes a compound represented by the general formula (1) below. In the above general formula (1), each of X 1 , X 2 , X 3 and X 4 independently represents a hydrogen atom, an alkyl group having a carbon number of 1 to 6, a halogen atom, a hydroxyl group, a nitro group, a cyano…
- Who is the assignee on this patent?
- Toyo Kohan Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02F1/3612. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 27 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).