196 – Lasers

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Guests: Fabian Reichert     Host: Markus Voelter    Shownoter: Alexander Grote

In this episode we cover the fundamentals of lasers with our guest, Fabian Reichert, who works at the Center for Free Electron Lasers at DESY in Hamburg. We cover various ways of how laser beams are produced and what distinguishes lasers from other light sources. We also cover a few application areas of lasers as well as techniques for pulsing lasers.

Introduction of Fabian Reichert

00:00:51

General properties of laser light

00:01:51

Laser | Beam divergence | Gaussian beam | Wavelength | Linewidth | Cohorence | Phase | Spectral line

History of the Laser

00:24:01

Ruby laser | Ruby laser (publication) | Fiber-optic communication

Laser Construction (specifics)

00:27:11

Lanthanide | electron laser | gas laser | Helium-neon laser | Dye laser | Fiber laser | Semiconductor laser | Excimer laser

High Power Lasers

00:36:41

Quantum defect | Optical fibre | Thin disk laser

Pulsed Operation

00:40:21

q-switching | mode locking | mode locking (images)

Outro

01:13:10

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