1. Chapter 1: Nature of light

3. waveparticle Wave-particle duality However strange, it correctly describes known phenomena connected with light. E = h

4. Optics: the study of light Ray optics Geometrical (ray) optics macroscopic-scale phenomena -light travels in straight lines (rays) -wavelength  0, frequency  ∞ -explains reflection and refraction -useful for designing imaging systems Physical (wave) optics microscopic-scale phenomena -light (electromagnetic radiation) is a wave -action of light described by Maxwell’s equations -explains reflection, refraction, dispersion, interference, polarization, diffraction Quantum optics atomic-scale phenomena -light is a photon; has both wave-like and particle- like characteristics -used to analyze light-matter interactions -explains photoelectric effect, lasers

5. The electromagnetic spectrum light is identified as an electromagnetic wave with a frequency detected by the human eye c = 3 x 10 8 m/s

6. The electromagnetic spectrum

7. Radiometric quantities characterizing the energy content of electromagnetic radiation

8. differential solid angle d  for describing radiant intensity: inverse square law for characterizing irradiance: A steradian corresponds to an area of a sphere equal to r 2. The irradiance decreases inversely with the square of the distance.

9. You are encouraged to solve all problems in the textbook (Pedrotti 3 ). The following may be covered in the werkcollege on 7 September 2011: Chapter 1 2, 10, 17 Exercises