1. Separation of Motion QM

2. Separation Vibration Rotation

3.  = (4  /3ħc)  n  e  m  2  (N m -N n )  (  o -  ) 1 2 3 4 1.Square of the transition moment  n  e  m  2 2.Frequency of the light  3.Population difference (N m - N n ) 4.Resonance factor - Dirac delta function  (0) = 1

4.  = (4  /3ħc)  n  e  m  2  (N m -N n )  (  o -  ) 1 Fermi’s Golden Rule Dipole Moment Matrix Elements

5.  = (4  /3ħc)  n  e  m  2  (N m -N n )  (  o -  ) 1 Fermi’s Golden Rule

6. μ = q.r + - r Dipole Moments

7. CO 2 Vibrations

8. Einstein Coefficients nn mm

9.  = (4  /3ħc)  n  e  m  2  (N m -N n )  (  o -  ) 1 2 3 4 1.Square of the transition moment  n  e  m  2 2.Frequency of the light  3.Population difference (N m - N n ) 4.Resonance factor - Dirac delta function  (0) = 1

10. Frequency ●-----●

11. Problem 3 Devise a simple experiment using fairly everyday things to estimate the frequency of a light source …or alternatively devise an experiment to determine the wavelength and assume c = 30000kms -1

12.  = (4  /3ħc)  n  e  m  2  (N m -N n )  (  o -  ) 1 2 3 4 1.Square of the transition moment  n  e  m  2 2.Frequency of the light  3.Population difference (N m - N n ) 4.Resonance factor - Dirac delta function  (0) = 1

13. http://en.wiki pedia.org/wi ki/Boltzmann _constant Boltzmann

14. nn mm oo N m = N o e -∆E/kT where ∆E = E m – E o

15. nn mm oo N m = N o e -∆E/kT where ∆E = E m – E o

16. Maser

17.  = (4  /3ħc)  n  e  m  2  (N m -N n )  (  o -  ) 1 2 3 4 1.Square of the transition moment  n  e  m  2 2.Frequency of the light  3.Population difference (N m - N n ) 4.Resonance factor - Dirac delta function  (0) = 1

18. Dirac delta function δ (0) 1. Infinitely high 2. Infinitely narrow 3. Area = unity

19. Resonance commons.wikimedia.org

20. Millennium Bridge

21. Tacoma

22. ABC Rotation of a Diatomic Molecule