In depth Raman analysis of the ferroelectrics KTiOPO4 and LiNbO3 : role of domain boundaries and defects / Michael Rüsing ; Supervisor: Prof. Dr. Artur Zrenner. Paderborn, 2018
Inhalt
- Table of contents
- 1 Introduction
- 2 Material systems
- 2.1 LiNbO3 and LiTaO3
- 2.1.1 Crystal structure and crystal growth
- 2.1.2 Intrinsic and extrinsic defects in LiNbO3 and LiTaO3
- 2.2 KTiOPO4-family
- 3 Methods
- 3.1 Introduction to Raman spectroscopy
- 3.2 Experimental Instrumentation
- 3.3 Selected experimental applications
- 4 Spectroscopic analysis
- 4.1 LiNbO3 and LiTaO3
- 4.1.1 Phonons in the LiNbO3 system
- 4.1.2 Theoretical calculation of Raman Spectra
- 4.1.3 LiNb(1-x)TaxO3 mixed crystals
- 4.1.4 Conclusion
- 4.2 KTiOPO4 family
- 4.3 Directional dependent Raman spectroscopy
- 5 Imaging Spectroscopy
- 5.1 Unraveling the DW contrast mechanism in Raman spectroscopy
- 5.1.1 Raman Imaging and Directional dispersion
- 5.1.2 Domain walls on y-cut surfaces
- 5.1.3 Atomistic simulations
- 5.1.4 Limits and open questions
- 5.1.5 Summary and Conclusion
- 5.2 Investigation of KTiOPO4
- 6 Conclusion
- List of figures
- List of tables
- References
- Appendix A KTP wafer homogeneity
- Appendix B Investigation of y-cut PPKTP
- Appendix C Publication list