Understanding lasers: an entry-level guide
This updated edition is both accurate and easy to understand. Written for students, hobbyists, non-specialist engineers and anyone who wants an entry-level introduction to laser technology, this book provides practical, intuitive descriptions of the workings of major types of lasers and their applications. Key topics include: semiconductor lasers...solid-state lasers...gas lasers...laser applications in information processing, medicine, communications, industry and military systems. Clear, succinct, and amply illustrated, this book makes an ideal learning tool and a valuable reference for technical and nontechnical readers alike.
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HOW LASERS ARE USED
WHAT HAVE WE LEARNED
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absorb absorption amplifiers angle applications argon atoms or molecules band beam divergence carbon-dioxide laser Chapter coherent continuous-wave crystal depends diameter diode lasers disks distance dye lasers efficiency electric electromagnetic electrons emit light energy levels example excited flashlamp focal length free-electron laser frequency GaAlAs gain bandwidth gas lasers glass heat helium helium-neon laser high-power important infrared input intensity krypton laser action laser beam laser cavity laser gas laser level laser light laser material laser medium laser pulse laser transition laser tube laser wavelength lasers emit lasers operate lens lenses light waves longitudinal mode lower laser level maser measured modelocked modulators neodymium neodymium lasers normally output mirror output power photon polarization population inversion produce a population pulse length pump range of wavelengths reflective refractive index repetition rate resonator rotational semiconductor lasers shown in Fig solid-state lasers spectrum stimulated emission surface temperature tunable typically ultraviolet upper laser level vibrational wavelength