可商量
发表于 2025-3-26 22:38:20
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软膏
发表于 2025-3-27 03:48:33
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与野兽博斗者
发表于 2025-3-27 09:08:31
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obsession
发表于 2025-3-27 10:20:13
Titanium–Sapphire LaserAs an example of a laser, we describe the titanium–sapphire laser.
Disk199
发表于 2025-3-27 17:03:19
A Laser TheoryIn this chapter, we present simple laser equations describing the dynamics of laser oscillation. The equations are coupled differential equations of first order relating the populations of the laser levels and the photon density.
物种起源
发表于 2025-3-27 19:59:28
Driving a Laser OscillationWe investigate the role of electric polarization of a laser medium in order to obtain further insight into dynamical processes occurring in a laser. The reader, who does not wish to interrupt the description of a laser and its operation, may skip over this chapter.
枪支
发表于 2025-3-27 22:38:37
Gaussian Waves and Open ResonatorsA large number of gas and solid state lasers as well as free-electron lasers make use of an open resonator.
Atheroma
发表于 2025-3-28 03:17:22
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协奏曲
发表于 2025-3-28 08:56:50
Femtosecond LaserMode locking allows a laser with a broad gain bandwidth to generate femtosecond pulses. A mode-locked laser oscillates at the same time on a large number of modes. The fields of all modes are phase-locked to each other.
Water-Brash
发表于 2025-3-28 14:28:30
Gas LasersA gas laser contains atoms or molecules. Stimulated transitions occur in atoms between electronic states and in molecules between rotational, vibrational, or electronic states. We describe various gas discharge lasers: helium–neon laser; metal vapor laser; argon ion laser; excimer laser; nitrogen laser; CO. laser; optically pumped gas lasers.