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Quantum Chemistry
15: Lasers, Laser Spectroscopy, and Photochemistry

15: Lasers, Laser Spectroscopy, and Photochemistry

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Mar 18, 2020
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- 14.E: Nuclear Magnetic Resonance Spectroscopy (Exercises)
- 15.1: Electronically Excited Molecules can Relax by a Number of Processes

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15.1: Electronically Excited Molecules can Relax by a Number of Processes
15.2: The Dynamics of Transitions can be Modeled by Rate Equations
15.3: A Two-Level System Cannot Achieve a Population Inversion
15.4: Population Inversion can be Achieved in a Three-Level System
15.5: What is Inside a Laser?
15.6: The Helium-Neon Laser
The He-Ne laser was the first continuous wave (cw) laser invented. A few months after Maiman announced his invention of the pulsed ruby laser, Ali Javan and his associates W. R. Bennet and D. R. Herriott announced their creation of a cw He-Ne laser. This gas laser is a four-level laser that use helium atoms to excite neon atoms. It is the atomic transitions in the neon that produces the laser light. The most commonly used neon transition in these lasers produces red light at 632.8 nm.
15.7: High-Resolution Laser Spectroscopy
15.8: Pulsed Lasers Can by Used to Measure the Dynamics of Photochemical Processes
15.E: Lasers, Laser Spectroscopy, and Photochemistry (Exercises)

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