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Ultrafast Laser Spectroscopy

Ultrafast Laser Spectroscopy. Instructor: Prof. Anindya Datta, Department of Chemistry, IIT Bombay. The course introduces students to laser spectroscopy, with an emphasis on ultrafast spectroscopy. It deals with fundamentals of instrumentation, data analysis and contemporary research in the field. The syllabus is as follows: Basics. Electronic absorption, fluorescence and phosphorescence. Fluorescence quantum yields and lifetimes. Solvent effects. FRET, fluorescence anisotropy. Tools. Fundamentals of instrumentation. Photon counting vs. analog detection. Time correlated single photon counting, Fluorescence upconversion, Transient absorption, Stimulated Raman spectroscopy. Temperature and pH jump experiments. Fluorescence Lifetime Imaging Microscopy.Applications. Ultrafast dynamics of the chemical bond, Solvation dynamics, Ultrafast dynamics of aqueous systems, Photoisomerization, Light harvesting antennae, Protein folding, Time resolved spectroscopic techniques in DNA sequencing, Ultrafast dynamics in nanomaterials and other novel fluorophores, Photoinduced electron transfer dynamics in Dye Sensitized Solar Cells. Time and space resolved spectroscopy of perovskites. (from nptel.ac.in)

Lecture 14 - FOG Lab

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Lecture 01 - Introduction to Ultrafast Laser Spectroscopy

Lecture 02 - Steady State Spectra

Lecture 03 - Spectrophotometer

Lecture 04 - How to Record Absorption and Emission Spectra

Lecture 05 - Excited State Processes

Lecture 06 - TCSPC for Picosecond-Nanosecond Time Domain

Lecture 07 - TCSPC for Picosecond-Nanosecond Time Domain (cont.)

Lecture 08 - TCSPC Lab

Lecture 09 - Data Fitting

Lecture 10 - Data Fitting (cont.)

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 - Stimulated Emission

Lecture 17 - Two Level System

Lecture 18 - 3 and 4 Level System

Lecture 19 - From CW to Pulsed Laser

Lecture 20 - Longitudinal Modes

Lecture 21 - Modelocking for Short Pulses

Lecture 22 - Modelocking for Short Pulses (cont.)

Lecture 23 - Kerr Lens Modelocking for Femtosecond Pulses

Lecture 24 - Titanium Sapphire Lasers

Lecture 25 - Active and Passive Modelocking

Lecture 26 - Modelocking and Cavity Damping

Lecture 27 - Ti:Sapphire Laser (Lab Visit)

Lecture 28 - Cavity Dumping

Lecture 29 - Cavity Dumping (cont.)

Lecture 30 - Q-Switching

Lecture 31 - Stretching and Compressing Ultrafast Laser Pulses

Lecture 32 - Pulse Stretcher/Compressor: Single Grating

Lecture 33 - Chirped Pulse Amplification

Lecture 34 - Oscillators and Amplification: Designs and Materials

Lecture 35 - Alexandrite and Fibril Lasers

Lecture 36 - Regenerative Amplifier in Our Lab

Lecture 37 - Brief Overview of Nonlinear Optical Phenomena

Lecture 38 - Brief Overview of Nonlinear Optical Phenomena (cont.)

Lecture 39 - Brief Overview of Nonlinear Optical Phenomena (cont.)

Lecture 40 - SFG and SHG with Ultrafast Pulses

Lecture 41 - SFG and SHG with Ultrafast Pulses (cont.)

Lecture 42 - Optical Parametric Generation and Amplification

Lecture 43 - OPA in Our Lab TOPAS C, Part 1

Lecture 44 - OPA in Our Lab TOPAS C, Part 2

Lecture 45 - OPA in Our Lab TOPAS C, Part 3

Lecture 46 - Snapshots of Bond Breaking

Lecture 47 - Twisted Intramolecular Charge Transfer (Part 1)

Lecture 48 - Solvation Dynamics

Lecture 49 - Solvation Dynamics (cont.)

Lecture 50 - Vibrational Energy Transfer in Water

Lecture 51 - Excited State Proton Transfer: Introduction

Lecture 52 - Excited State Double Proton Transfer of 7-Azaindole Dimer

Lecture 53 - Excited State Double Proton Transfer of 7-Azaindole Dimer (cont.)

Lecture 54 - Excited State Double Proton Transfer of 7-Azaindole Dimer (cont.)

Lecture 55 - Plasmonic Nanoparticles

Lecture 56 - Plasmonic Nanoparticles (cont.)