|
| Udgave: |
Efterår 2012 NAT |
| Point: |
7,5 |
| Blokstruktur: |
2. blok |
| Skemagruppe: |
A |
| Fagområde: |
fys |
| Institutter: |
Niels Bohr Institutet |
| Uddannelsesdel: |
Bachelor niveau |
| Kontaktpersoner: |
Eugene Polzik, tel: 35 32 54 24, email: polzik@nbi.dk, office: 12-0-Ta2
|
| Skema- oplysninger: |
 Vis skema for kurset
Samlet oversigt over tid og sted for alle kurser inden for Lektionsplan for Det Naturvidenskabelige Fakultet Efterår 2012 NAT |
| Undervisnings- periode: |
19. november 2012 til 27. januar 2013 |
| Undervisnings- form: |
Forelæsninger og regneøvelser.
|
| Formål: |
To familiarize students with basic concepts of optical physics, including coherent light-atom interaction, absorption and amplification of light by atoms, physics of lasers, and non-linear optics. |
| Indhold: |
The course presents basic concepts of optical physics, including coherent light-atom interaction, physics of lasers, non-linear optics and elements of quantum optics. The description is based on the quantum mechanical theory of an atom in a resonant optical field. We will consider absorption, stimulated and spontaneous emission of light, Rabi oscillations, density matrix and Bloch equations, the theory of spectral line shapes, specific modern lasers, optical resonators, and photon statistics The course forms the basis for future studies of coherent and quantum effects within atomic and optical domains. |
| Målbeskrivelse: |
In order to pass the course the student should be able to:
explain the Lorentz model of light-atom interaction, Lorentzian lineshape function and Doppler broadening.
describe the model for propagation of light through atomic media including the refractive index and absorption and gain coefficients.
understand the origin of laser gain, losses and the feedback mechanism and the laser threshold.
explain photon- and population rate equations for three- and four-level lasers.
explain the difference between saturated gain and small signal gain of a laser.
discuss the nature of the laser linewidth and methods of obtaining single mode operation.
explain the origin of the theoretical lower limit for laser bandwidth (Schawlow-Townes limit).
understand the principles of Q-switch lasers and mode-locked lasers.
discuss laser resonators and Gaussian beams using ABCD matrix formalism.
understand the quantum theory of a two-level atom interacting with light including Rabi oscillations and Pi pulses.
introduce the density matrix and optical Bloch equations and explain atomic decay and collisions.
understand the basics of coherent effects in laser-atom interactions, such as electromagnetically induced transpancy.
explain the theory of nonlinear optical processes driven by laser light including second harmonic generation.
|
| Lærebøger: |
P.W. Milonni and J.H. Eberly, "Laser Physics" (Wiley,2008 ) |
| Tilmelding: |
Foregår på selvbetjeningen d. 15.maj - 1. juni |
| Faglige forudsætninger: |
First 2 years of the physics study |
| Eksamensform: |
Mundligt eksamen af ca. 30 min. varighed med 3-4 minutters forberedelse med brug af alle hjælpemidler. Karakter efter 7-trins skalaen. Intern censur.
Reeksamen som den ordinære eksamen. |
| Eksamen: |
Mundtlig prøve den 23. - 24. januar 2013.
Reeksamen: Mundtlig prøve den 18. april 2013. |
| Kursus hjemmeside: |
 |
| Undervisnings- sprog: |
Kun engelsk
|
| Sidst redigeret: |
26/4-2012 |