'Reduced emission area' presentation slideshows

Example: He-Ne Laser ?0 = 632.5 nm ?? = 0.2 nm Diode Laser ?0 = 900 nm ?? = 10 nm

LASER properties Nearly Monochromatic light. Example: He-Ne Laser ?0 = 632.5 nm ?? = 0.2 nm Diode Laser ?0 = 900 nm ?? = 10 nm. Directionality. Coherence. Incoherent light waves Coherent light waves. Atomic Transitions Stimulated absorption.

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