02.20A · Cours 20 — Photons et atomes

Course 20 — Photons and atoms

1. Physique · 29 pages

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Geometrical Optics Review

1Lensmaker & Conjugation Equations 2Ray Tracing & Magnification 3The Human Eye & Vision Defects

Photons and Atoms

4Lecture Overview

Photoelectric Effect

5Photoelectric Effect 6Energy Quanta: The Photon 7Laser Beam Photons — Example (Part 1)8Laser Beam Photons — Example (Part 2)

9Wave-Particle Duality

Atoms and Light

10Valence Electrons & Excitation 11Emission & Absorption Spectra 12Discrete Spectra — Visual Summary

Bohr Model of the Atom

13Postulates & Stationary Orbits 14Photon Emission & Absorption 15Balmer Series & Quantized Angular Momentum 16Atomic Radius Derivation 17Energy Levels — Setup 18Energy Levels — E_n = −13.6 eV / n²

De Broglie Hypothesis

19Matter Waves & Standing-Wave Condition 20Recovering Bohr's Quantization

Quantum Mechanics

21Wavefunction & Probability

22Absorption & Spontaneous Emission 23Stimulated Emission 24Population Inversion & Pumping 25Medical Applications — Overview 26Medical Applications by Specialty 27Dermatology: Port-Wine Stains 28Oncology: Photodynamic Therapy

29Upcoming Session Schedule

02.20APage 1Geometrical Optics ReviewLensmaker & Conjugation Equations

Cours 20 — Photons et atomes page 1

02.20APage 2Geometrical Optics ReviewRay Tracing & Magnification

Cours 20 — Photons et atomes page 2

02.20APage 3Geometrical Optics ReviewThe Human Eye & Vision Defects

Cours 20 — Photons et atomes page 3

02.20APage 4Photons and AtomsLecture Overview

Cours 20 — Photons et atomes page 4

02.20APage 5Photons and AtomsPhotoelectric Effect

Cours 20 — Photons et atomes page 5

02.20APage 6Photons and AtomsPhotoelectric EffectEnergy Quanta: The Photon

Cours 20 — Photons et atomes page 6

02.20APage 7Photons and AtomsPhotoelectric EffectLaser Beam Photons — Example (Part 1)

Cours 20 — Photons et atomes page 7

02.20APage 8Photons and AtomsPhotoelectric EffectLaser Beam Photons — Example (Part 2)

Cours 20 — Photons et atomes page 8

02.20APage 9Photons and AtomsWave-Particle Duality

Cours 20 — Photons et atomes page 9

02.20APage 10Photons and AtomsAtoms and LightValence Electrons & Excitation

Cours 20 — Photons et atomes page 10

02.20APage 11Photons and AtomsAtoms and LightEmission & Absorption Spectra

Cours 20 — Photons et atomes page 11

02.20APage 12Photons and AtomsAtoms and LightDiscrete Spectra — Visual Summary

Cours 20 — Photons et atomes page 12

02.20APage 13Photons and AtomsBohr Model of the AtomPostulates & Stationary Orbits

Cours 20 — Photons et atomes page 13

02.20APage 14Photons and AtomsBohr Model of the AtomPhoton Emission & Absorption

Cours 20 — Photons et atomes page 14

02.20APage 15Photons and AtomsBohr Model of the AtomBalmer Series & Quantized Angular Momentum

Cours 20 — Photons et atomes page 15

02.20APage 16Photons and AtomsBohr Model of the AtomAtomic Radius Derivation

Cours 20 — Photons et atomes page 16

02.20APage 17Photons and AtomsBohr Model of the AtomEnergy Levels — Setup

Cours 20 — Photons et atomes page 17

02.20APage 18Photons and AtomsBohr Model of the AtomEnergy Levels — E_n = −13.6 eV / n²

Cours 20 — Photons et atomes page 18

02.20APage 19Photons and AtomsDe Broglie HypothesisMatter Waves & Standing-Wave Condition

Cours 20 — Photons et atomes page 19

02.20APage 20Photons and AtomsDe Broglie HypothesisRecovering Bohr's Quantization

Cours 20 — Photons et atomes page 20

02.20APage 21Photons and AtomsQuantum MechanicsWavefunction & Probability

Cours 20 — Photons et atomes page 21

02.20APage 22Photons and AtomsLASERAbsorption & Spontaneous Emission

Cours 20 — Photons et atomes page 22

02.20APage 23Photons and AtomsLASERStimulated Emission

Cours 20 — Photons et atomes page 23

02.20APage 24Photons and AtomsLASERPopulation Inversion & Pumping

Cours 20 — Photons et atomes page 24

02.20APage 25Photons and AtomsLASERMedical Applications — Overview

Cours 20 — Photons et atomes page 25

02.20APage 26Photons and AtomsLASERMedical Applications by Specialty

Cours 20 — Photons et atomes page 26

02.20APage 27Photons and AtomsLASERDermatology: Port-Wine Stains

Cours 20 — Photons et atomes page 27

02.20APage 28Photons and AtomsLASEROncology: Photodynamic Therapy

Cours 20 — Photons et atomes page 28

02.20APage 29Photons and AtomsUpcoming Session Schedule

Cours 20 — Photons et atomes page 29