The Duality of Light - UMass D
-
Upload
-
0
-
Embed
-
Share
-
Upload and view presentations on any device and embed the player to your website! --- > >Upload PPT
- Upload PPT
Download this Presentation
followed
unfollow
follow
0
Presentation Transcript
- 1.The Duality of Light Particular and Wavelike Kristine Lister
- 2.Early Findings 1670’s Christian Huygens: points on a wave as new sources Isaac Newton: corpuscular theory
- 3.Young’s Double Slit Diffraction
- 4.Late 1800’s to Early 1900’s James Clerk Maxwell: light is electromagnetic Max Planck: spectrum of light emitted by a glowing object Einstein looked at the photoelectric effect
- 5.Photoelectric Effect Light will hit a material and shed electrons which induce a current
- 6.Photons Discrete quanta (packets) of energy with particular qualities E = hf Photoelectric effect: E = hf – φ Einstein wins Nobel prize in 1921
- 7.de Broglie Wavelength All matter moved as waves λ= ℎ 𝑝 1929 Nobel Prize Thomson and Davisson experiment with electron diffraction patterns 1937 Nobel Prize
- 8.Heisenberg Uncertainty Principle Developed from de Broglie’s hypothesis ΔxΔp ≥ ħ 2
- 9.Today Developed from de Broglie’s hypothesis ΔxΔp ≥ ħ 2 Wave Function (Ѱ) Quantum state of a particle over time Ex: Schrodinger equation Compton Wavelength Electron collide and sheds a photon Δλ = ℎ 𝑚 𝑒 𝑐 (1 - cosϴ)
Related
