Atomic and Molecular Physics

7.

Interaction of Atoms with Electromagnetic Radiation

7.1.

Time-Dependent Perturbation Theory

7.1.1.

Time-Dependent Schrödinger Equation

7.1.2.

Perturbation Expansion

7.1.3.

First-Order Time-Dependent Perturbation

7.1.4.

Transition Probabilities

7.1.5.

Fermi's Golden Rule

7.1.6.

Transition Rates

7.1.7.

Density of States

7.2.

Electromagnetic Radiation and Atoms

7.2.1.

Classical Electromagnetic Fields

7.2.2.

Quantized Electromagnetic Field

7.2.3.

7.2.4.

Interaction Hamiltonian

7.2.5.

Electric Dipole Approximation

7.2.6.

Magnetic Dipole and Electric Quadrupole

7.3.

Radiative Transitions

7.3.1.

Spontaneous Emission

7.3.2.

Physical Mechanism

7.3.3.

Einstein A Coefficient

7.3.4.

Stimulated Emission

7.3.5.

Einstein B Coefficient

7.3.6.

Laser Principle

7.3.7.

7.3.8.

Einstein B Coefficient for Absorption

7.3.9.

Detailed Balance

7.3.10.

Blackbody Radiation and Einstein Coefficients

7.4.

Selection Rules

7.4.1.

Electric Dipole Transitions

7.4.2.

Allowed Transitions

7.4.3.

Parity Selection Rule

7.4.4.

Angular Momentum Selection Rules

7.4.5.

Δl Selection Rule

7.4.6.

Δm_l Selection Rule

7.4.7.

Δj Selection Rule

7.4.8.

Forbidden Transitions

7.4.9.

Magnetic Dipole Transitions

7.4.10.

Electric Quadrupole Transitions

7.4.11.

Metastable States

7.5.

Spectral Line Properties

7.5.1.

Line Shapes and Broadening Mechanisms

7.5.2.

Natural Broadening

7.5.3.

Lifetime Broadening

7.5.4.

Uncertainty Principle Connection

7.5.5.

Lorentzian Line Shape

7.5.6.

Doppler Broadening

7.5.7.

Thermal Motion Effects

7.5.8.

Gaussian Line Shape

7.5.9.

Pressure Broadening

7.5.10.

Collisional Broadening

7.5.11.

Stark Broadening

7.5.12.

Instrumental Broadening

7.5.13.

7.6.

7.6.1.

Principles of Laser Operation

7.6.2.

Stimulated Emission Dominance

7.6.3.

Population Inversion

7.6.4.

Three-Level Systems

7.6.5.

Four-Level Systems

7.6.6.

Optical Pumping

7.6.7.

Pumping Mechanisms

7.6.8.

7.6.9.

Gain Coefficient

7.6.10.

Threshold Condition

7.6.11.

Resonant Cavities

7.6.12.

Fabry-Perot Cavities

7.6.13.

7.6.14.

7.6.15.

Types of Lasers

7.6.16.

7.6.17.

Solid-State Lasers

7.6.18.

Semiconductor Lasers

7.6.19.

Previous

6. Multi-Electron Atoms

Go to top

Next

8. Molecular Physics Fundamentals