Physics Notes - Herong's Tutorial Notes
∟Introduction of Light
This chapter provides an introduction of light as electromagnetic wave. Topics include what is photon; electromagnetic spectrum; visible light spectrum; stimulated emission and laster; superposition of electromagnetic waves; photon-atom interaction; light-surface interaction.
What Is Light
Light Spectrum - Range of Electromagnetic Frequencies
Visible Light Spectrum
Can Human See a Single Photon
Stimulated Emission of Radiation and Laser
Coherent vs. Incoherent Light
Superposition of Electromagnetic Field Waves
Types of Photon-Atom Interactions
Light Interacting with Flat Surface
Takeaways:
- Light is made of discrete photons.
- Photon is an electromagnetic wave packet.
- Photon travels at constant speed of 299,792,458 m/s.
- Photons with higher frequencies carry more energy.
- Frequency of photon ranges from 3 Hz to 2×1028 Hz.
- Wavelength of photon ranges from 1.5×10-20 m to 108 m.
- Human eye can detect a single photon.
- Photon can be cloned by the stimulated emission process.
- Light is made of discrete photons.
- Electromagnetic waves can superposed by vector addition.
- Atom absorbs incident photons and emits scattered photons.
- Light gets reflected, refracted and absorbed by surface.
Table of Contents
About This Book
Introduction of Space
Introduction of Frame of Reference
Introduction of Time
Introduction of Speed
Newton's Laws of Motion
Electromagnetic Fields
►Introduction of Light
Speed of Light
Introduction of Special Relativity
Time Dilation in Special Relativity
Length Contraction in Special Relativity
The Relativity of Simultaneity
Introduction of Spacetime
Minkowski Spacetime and Diagrams
Introduction of Hamiltonian
Introduction of Lagrangian
Introduction of Generalized Coordinates
Phase Space and Phase Portrait
Poisson Bracket Expression
References
Index
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