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Full Screen- TITLE
- DEDICATION
- CERTIFICATE
- DECLARATION
- ACKNOWLEDGEMENT
- PREFACE
- CONTENTS
- 1. GENERAL INTRODUCTION TO NONLINEAR PHENOMENA
- 1.1 Introduction
- 1.2 Nonlinear processes
- 1.3 Multiphoton processes in crystalline media
- References
- 2. TWO PHOTON ABSORPTION COEFFICIENTS IN LAYER STRUCTURED SEMICONDUCTORS
- 2.1 Introduction
- 2.2 Perturbative approach
- 2.3 Nonperturbative approach
- Formalism
- 2.4 Effect of anisotropy
- Parabolic band approximation
- Nonparabolic energy band approximation
- 2.5 Calculations and discussion
- References
- 3. THREE PHOTON ABSORPTION COEFFICIENTS IN LAYER STRUCTURED SEMICONDUCTORS
- 3.1 Introduction
- 3.2 Perturbative approach
- Four band model
- Three band model
- Two band model
- 3.3. Nonperturbative approach
- 3.4 Effect of anisotropy
- 3.5 Calculations and discussion
- References
- 4. NONLINEAR OPTOELECTRONIC PROPERTIES OF PbI2
- 4.1 Introduction
- 4.2 Theories for NLP and NLT
- 4.3 Preparation of Pbl2 single crystal
- 4.3.1 Design and techniques
- 4.3.2 Circuit description of the temperature controller cum recorder
- Fig. 4.4. Photograph of the fabricated crystal growth system.
- 4.3.3 Working of the system
- Fig. 4.5. Photograph of PbI2 single crystals grown by using the fabricated zone refining system.
- 4.3.4 Performance of the system
- 4.4 Experimental details
- 4.5 Results and discussion
- 4.5.1 Nonlinear studies in PbI2
- 4.5.2 Spectral dependence of 2PA and 3PA coefficients
- References
- 5. NONLINEAR LUMINESCENCE STUDIES IN CdI2 AND ZnSe
- 5.1 Introduction
- 5.2 Theory for nonlinear luminescence
- 5.3 Experimental details
- 5.4 Results and discussion
- 5.4.1 Nonlinear studies in CdI2
- Fig. 5.2. Photograph of CdI2 single crystals grown by using the fabricated zone refining system.
- 5.42 Nonlinear studies in ZnSe
- 5.4.3 Spectral behaviour of 3PA coefficients in CdI2 and ZnSe
- References
- APPENDICES