Dissertation > Excellent graduate degree dissertation topics show

Growth of Cr4+:YAG Crystal and Analysis on Defects

Author: ZhaoXiaoHong
Tutor: WangXiaoChun；XuXueZhen
School: Changchun University of Science and Technology
Course: Materials Physics and Chemistry
Keywords: Cr4 : YAG pulling method Crystal growth Annealing Absorption coefficient
CLC: TN244
Type: Master's thesis
Year: 2010
Downloads: 69
Quote: 0
Read: Download Dissertation

Abstract


1um band the most widely used one of the Q-switched Cr4 : YAG crystal has a high thermal conductivity and laser damage threshold . In this thesis, medium frequency induction Czochralski method co-doped calcium and magnesium ions Cr4 : YAG crystal , the temperature field system , the optimization of the growth process parameters , to overcome the internal defects of the crystal side of the heart , and switch to automation growth equipment , crystal diameter of 50mm, and shape control ideal ; Cr4 : YAG crystal internal defects ( large side of the heart, needles , etc.) and its absorption coefficient Characterization of the Cr4 : YAG crystal preparation process parameters on the quality and performance affected. For Cr , Ca , Mg ion doping concentration and the proportion of the optimization and atmospheric annealing process reduces the crystal absorption coefficients of longitudinal and radial gradients . Growth test : Cr4 : YAG crystal internal defects and the unstable absorption coefficient with the temperature gradient of the temperature field and the doping ratio and other factors .

Related Dissertations

  1. Active Power Filter and Its Application in Distribution Network,TN713.8
  2. Optical Properties of Chlorphyll-a in Reservoir Water and Its Concentration Inversion Models by Remote Sensing,S127
  3. The Research and Implementation of the Fault Management System for Triple Play,TP315
  4. The Research of Trust Model and Related Technologies in P2P Networks,TP393.08
  5. Sol - gel method p -type ZnO films,O484.1
  6. Asphalt Mixture Design of Noise Reduction Enviroment-friendly Tunnel Pavement,U414
  7. Improved Analysis and Applied Research of Artificial Glowworm Swarm Optimization Algorithm,TP18
  8. Doped ZrO_2 information function film and its properties of,O484.4
  9. Research on Model and Optimization of Production Scheduling for Copper Sheet and Strip Oriented MES,TP391.7
  10. Study on Multi-Floor Facility Layout Problem Based on M/G/1 Lift Handling System,TU857
  11. A Clustering Analysis Strategy for On-line Dynamic Electrocardiogram Waveform,TP391.41
  12. Research on Heterogeneous Fixed Fleet Vehicle Routing Problem with Fuzzy Time Windows,F252
  13. Optimization Study on Road Pricing with Variable Frequency of Bus,U491
  14. The Intelligent Optimization Algorithm of Multi-Objective Programming with Interval Coefficient,O221.6
  15. Multi- school system under the the elective system 's design and Implementation,TP311.52
  16. Double-crystal copper grain boundary energy and the structural stability of the molecular dynamics simulation,TG142.1
  17. Single- and multi- assignment assigned coexistence with hub Logistics Network Design,F252
  18. Rolled Mg-Zn-Ce-Zr (Mn) alloy microstructure and mechanical properties of,TG339
  19. Al-Zn-Mg-Cu-Cr alloy deformation behavior and organizational performance research,TG146.21
  20. Study on Optical Properties of As2S8 Amorphous Semiconductor Films Waveguide,TN252
  21. Molecular Dynamics Simulations on the Crystal Growth of Carborundum,O781

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser materials and substances
© 2012 www.DissertationTopic.Net  Mobile