Laser Physics I

PHYS 464 001 https://dielslab.unm.edu/sites/default/files/introduction_August19-2024.pps

MW 1100-1215

PAIS-1160

INTRODUCTION

Different waves /wave propagation equation (first order) to Maxwell's second order propagationi equation / wave addition / coherent vs incoherent.

ppsx_8-19; LISA

Introduction2: Wave combination, phase on reflection/transmission, Doppler.

Doppler

Angular momentum and laser gyroscopes

LIGHT-MATTER INTERACTION

MAXWELL'S EQUATIONS, POLARIZATION, FOURIER TRANSFORMS

fOURIER REVIEW applied to complex description of the field, pulse description

2-level systems

Fourier properties (pdf file)

Convolutions - applied to measurements.  Transient polarization

Practical applications of Fourer transforms

Wigner function - uncertainty principle free inductio  decay - poton echoes (9-16-2024)

line broadening_rate_equations_9-18

Rate equations - line broadening 9-23

Line broadening summary (pdf)

Blackbody radiation - Einstein

RESONATORS

Fabry-Perot and microresonators      Reading: Interfaces - phase relationships, Matrix methods

Asymmetric Fabry-Perot

Gaussian beams

A qualitative overview on Gaussian beams

No plane wave at the beam waist

Beam propagation - Gaussian approximationi

ABCD matrices - space-time analogy

Gaussian beams-pulses

Space-time and modes

Mode-locking - nonlinear cavity

Solitons

lasers-Nov 20

Laser examples

About the lab tour

Review

The following lecture is attempting to get a physical rather than mathematical picture of cavity modes

space-time, modes, laser frequecies

 

 

Examples of test questions

Review 1

Review 2

test solutions

HOMEWORK

Homework I: DOPPLER

                                 Homework I solutions -- Duckling transverse Doppler

HomeworkII: Fourier transforms

                                 Homework II solutions

                                   Question 4

Homework III: Relations between transition frequency parameters.

Homework IV; Laser example

Homework V: ABCD space and time matrices for the Ti:sapphire laser

PROJECT

Space-time project