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Introduction to Nonlinear Optics and its Applications

Introduction to Nonlinear Optics and its Applications. Instructor: Prof. Samudra Roy, Department of Physics, IIT Kharagpur. Nonlinear Optics is one of the important subdisciplines of Modern Optics. It mainly deals with the light-matter interaction when the material response is nonlinear. In the prescribed course we study the basic nonlinear optical effects (like higher harmonic generation, optical Kerr effect, self-phase modulation etc) that take place when the material is illuminated by a strong light (preferably Laser). The course offers the subject matter by giving a rigorous theoretical background and framework for a nonlinear effect, followed by details of how such an effect is implemented in real applications. (from nptel.ac.in)

Lecture 03 - Susceptibility Tensor and its Properties, EM Wave Propagation in Anisotropic Media

Anisotropic media, Susceptibility Tensor and its properties, EM wave propagation in Anisotropic media.

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Basic Linear Optics

Lecture 01 - Maxwell's Equations and their Solutions

Lecture 02 - Direction of Energy Flow, Intensity of an EM Wave, Anisotropic Media

Lecture 03 - Susceptibility Tensor and its Properties, EM Wave Propagation in Anisotropic Media

Lecture 04 - EM Wave Propagation in Anisotropic Media

Lecture 05 - EM Wave Propagation in Anisotropic Media (cont.)

Lecture 06 - EM Wave Propagation in Anisotropic Media (cont.)

Lecture 07 - Index Ellipsoid, Linear Response and Polarization

Lecture 08 - Linear Response and Polarization (cont.), Dielectric Susceptibility

Lecture 09 - Dielectric Susceptibility (Lorentz Model), Complex Refractive Index

Nonlinear Optics: An Introduction

Lecture 10 - Nonlinear Optics: Introduction and a Quick Overview

Lecture 11 - Applications of Nonlinear Optics, Classical Origin of Optical Nonlinearity

Lecture 12 - Classical Origin of Nonlinearity and Miller's Rule

Lecture 13 - Linear and Nonlinear Polarisation, Second Harmonic Generation (SHG)

Lecture 14 - Optical Rectification, Linear Electro-optic Effect

Lecture 15 - Sum and Difference Frequency Generation

Lecture 16 - Nonlinear Maxwell's Equation, Theory of Second Harmonic Generation

Lecture 17 - Theory of Second Harmonic Generation (cont.)

Lecture 18 - Theory of SHG (cont.), Phase Matching

Lecture 19 - Phase Matching of SHG, Gain Band Width Calculation

Lecture 20 - Manley-Rowe Relation, Energy Conservation in SHG

Lecture 21 - Birefringence Phase Matching, Type I and type II Phase Matching

Lecture 22 - Type II Phase Matching, Symmetry in Nonlinear Susceptibility

Lecture 23 - Kleinman's Symmetry, Neumann's Principle

Lecture 24 - Neumann's Principle (cont.), Centrosymmetric System

Lecture 25 - Matrix Form: SHG, SFG, DFG, SHG in KDP Crystal

Lecture 26 - SHG in KDP Crystal

Lecture 27 - SHG in LiNbO3

Lecture 28 - Quasi Phase Matching (QPM)

Lecture 29 - Quasi Phase Matching (QPM), Periodic d-function

Lecture 30 - Calculation of Quasi Phase Matching, Realistic Calculation of SHG

Lecture 31 - Realistic Calculation of SHG, 3 Wave Interaction

Lecture 32 - 3 Wave Interaction (cont.), Non-collinear Phase Matching

Lecture 33 - Manley-Rowe Relation (3 Wave Mixing), Parametric Down Conversion

Lecture 34 - Parametric Down Conversion (cont.), Optical Parametric Amplification (OPA)

Lecture 35 - Optical Parametric Amplification, Difference Frequency Generation under OPA

Lecture 36 - Sum Frequency Generation under OPA

Lecture 37 - OPA under Non-phase Matching Condition, Expression of Gain

Lecture 38 - Optical Parametric Oscillator (OPO), Singly Resonant Oscillator

Lecture 39 - Doubly Resonant Oscillator (DRO)

Lecture 40 - Doubly Resonant Oscillator (cont.)

Lecture 41 - Third Order Nonlinear Effect, Optical Kerr Effect

Lecture 42 - Optical Kerr Effect and Self-Focusing, Symmetry in Third Order Susceptibility

Lecture 43 - Symmetry in Third Order Susceptibility (cont.), Self Phase Modulation (SPM)

Lecture 44 - Self Phase Modulation (cont.), Frequency Shift

Lecture 45 - Third Harmonic Generation (3HG), Energy Conservation

Lecture 46 - Phase Matching, Evolution of Third Harmonic Wave under Constant Pump

Lecture 47 - 3HG under Pump Depletion, Cross Phase Modulation (XPM)

Lecture 48 - Cross Phase Modulation (cont.), Nonlinear Absorption

Lecture 49 - Four Wave Mixing, Cross Talk Frequency

Lecture 50 - Four Wave Mixing (cont.)

Lecture 51 - Parametric Amplification under FWM

Lecture 52 - Parametric Amplification under FWM (cont.)

Lecture 53 - Optimal Phase Conjugation

Lecture 54 - Raman Scattering

Lecture 55 - Stimulated Raman Scattering

Lecture 56 - Raman Amplification

Lecture 57 - Raman Amplification (cont.)

Lecture 58 - Linear Pulse Propagation

Lecture 59 - Nonlinear Pulse Propagation

Lecture 60 - Optical Soliton