Photorefractive double-doped potassium sodium strontium barium niobate single crystal and preparation method thereof
A technology of barium strontium niobate and single crystal, which is applied in the field of optical materials, can solve problems such as the preparation of unseen polycrystals, and achieve the effects of improving the ability to resist light damage, reducing time and energy consumption, and improving the ability to resist light damage.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] A photorefractive double-doped potassium sodium strontium barium niobate single crystal, wherein the molecular formula of potassium sodium strontium barium niobate is (KNa) 0.1 (Sr 0.65 Ba 0.35 ) 0.9 Nb 2 o 6 , doped with Cr and Ga oxides at the same time, taking the content of potassium, sodium, strontium and barium niobate as a reference, the doping content is: Cr 2 o 3 Content is 0.2mol%, Ga 2 o 3 The content is 1 mol%.
[0021] The preparation method of the above-mentioned photorefractive double-doped potassium sodium strontium barium niobate single crystal comprises the following steps:
[0022] (1) Weigh the raw materials containing corresponding metal elements according to the proportion, BaCO 3 , SrCO 3 、K 2 CO 3 、Na 2 CO 3 and Nb 2 o 5 , according to the molecular formula (KNa) 0.1 (Sr 0.65 Ba 0.35 ) 0.9 Nb 2 o 6 Weigh the ingredients; weigh Cr containing the blended content 2 o 3 , Ga 2 o 3 ; Prepare solid ammonium acetate by 12-18% of ...
Embodiment 2
[0028] The difference from Example 1 is that the content of doping Cr and Ga is: Cr 2 o 3 Content is 0.2mol%, Ga 2 o 3 The content is 1.8 mol%.
[0029] It was found through experiments that at 40mW / cm 2 The writing time constant measured under the total writing light intensity is between 23-31s, which is much smaller than the writing time constant of pure potassium sodium strontium barium niobate single crystal, and also smaller than that of single chromium-doped potassium sodium strontium barium niobate single crystal. The time constant is in the range of 43-65s; the light damage resistance and optical uniformity are also significantly better than pure potassium sodium strontium barium niobate single crystal.
Embodiment 3
[0031] The difference from Example 1 is that the content of doping Cr and Ga is: Cr 2 o 3 The content is O.5mol%, Ga 2 o 3 The content is 1 mol%. It was found through experiments that at 40mW / cm 2 The writing time constant measured under the total writing light intensity is between 17-24s, which is much smaller than the writing time constant of pure potassium sodium strontium barium niobate single crystal, and also smaller than that of single chromium-doped potassium sodium strontium barium niobate single crystal. The time constant is in the range of 43-65s; the light damage resistance and optical uniformity are also significantly better than pure potassium sodium strontium barium niobate single crystal.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com