NPTEL : NOC:Ultrafast Laser Spectroscopy (Chemistry and Biochemistry)

Co-ordinators : Prof. Anindya Datta


Lecture 1 - Introduction

Lecture 2 - Steady State Spectra

Lecture 3 - Spectro Photometer

Lecture 4 - How to record Absorption and Emission Spectra

Lecture 5 - Excited state processes

Lecture 6 - TCSPC for picosecond- Nanosecond Time Domain

Lecture 7 - TCSPC for picosecond- Nanosecond Time Domain (Continued...)

Lecture 8 - TCSPC Lab

Lecture 9 - Data Fitting 1

Lecture 10 - Data Fitting 2

Lecture 11 - Femtosecond Fluorescence Upconversion - 1

Lecture 12 - Femtosecond Fluorescence Upconversion - 2

Lecture 13 - Femtosecond Fluorescence Upconversion - 3

Lecture 14 - FOG Lab

Lecture 15 - Gate Detectors and Streak Camera - Part 1

Lecture 16 - Gate Detectors and Streak Camera - Part 2

Lecture 17 - Stimulated Emission

Lecture 18 - Two Level System

Lecture 19 - 3 and 4 level system

Lecture 20 - From CW to Pulsed Laser

Lecture 21 - Longitudinal modes

Lecture 22 - Modelocking for short pulses

Lecture 23 - Modelocking for short pulses (Continued...)

Lecture 24 - Kerr lens Modelocking for femtosecond pulses

Lecture 25 - Titanium Sapphire lasers

Lecture 26 - Active and Passive Modelocking

Lecture 27 - Modelocking and cavity damping

Lecture 28 - Ti:Sapphire laser (Lab visit)

Lecture 29 - Cavity Dumping

Lecture 30 - Cavity dumping (Continued...)

Lecture 31 - Q switching

Lecture 32 - Stretching and compressing ultrafast laser pulses

Lecture 33 - Pulse stretcher/Compressor: Single Grating

Lecture 34 - Chirped pulsed amplification

Lecture 35 - Oscillators and Amplifier: Design and materials

Lecture 36 - Alexandrite and fibril lasers

Lecture 37 - Regenerative amplifier in our lab

Lecture 38 - Brief overview of nonlinear optical phenomena

Lecture 39 - Brief overview of nonlinear optical phenomena (Continued...)

Lecture 40 - Brief overview of nonlinear optical phenomena (Continued...)

Lecture 41 - SFG and SHG with ultrafast pulses

Lecture 42 - SFG and SHG with ultrafast pulses (Continued...)

Lecture 43 - Optical parametric generation and amplification

Lecture 44 - OPA in our lab TOPAS C - Part 1

Lecture 45 - OPA in our lab TOPAS C - Part 2

Lecture 46 - OPA in our lab TOPAS C - Part 3

Lecture 47 - Snapshots of bond breaking

Lecture 48 - Twisted Intramolecular Charge Transfer - Part 1

Lecture 49 - Twisted Intramolecular Charge Transfer - Part 2

Lecture 50 - Solvation dynamics - Part 1

Lecture 51 - Solvation dynamics - Part 2

Lecture 52 - Vibrational energy transfer in water

Lecture 53 - Excited state proton transfer: Introduction

Lecture 54 - Excited state double proton transfer of 7-Azaindole dimer - 1

Lecture 55 - Excited state double proton transfer of 7-Azaindole dimer - 2

Lecture 56 - Excited state double proton transfer of 7-Azaindole dimer - 3

Lecture 57 - Plasmonic nanoparticles - 1

Lecture 58 - Plasmonic nanoparticles - 2

Lecture 59 - Nanoclusters

Lecture 60 - Semiconductor Nanocrystals - Part 1

Lecture 61 - Semiconductor nanocrystals - Part 2

Lecture 62 - Radiative and Nonradiative Relaxation Pathways in CdSe Nanocrystals - Part 1

Lecture 63 - Radiative and Nonradiative Relaxation Pathways in CdSe Nanocrystals - Part 2

Lecture 64 - Multiexciton in semiconductor nanocrystals - Part 1

Lecture 65 - Multiexciton in semiconductor nanocrystals - Part 2

Lecture 66 - Two dimensional Infrared spectroscopy: Introduction

Lecture 67 - 2DIR: Techniques