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Single beam second harmonic generation in isotropic media
Single beam second harmonic generation in isotropic media
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机译:各向同性介质中单束二次谐波的产生
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摘要
The present invention relates to an apparatus for providing second harmonic generation from a single beam in an isotropic medium. An isotropic medium having a two-photon transition between a first level and a second level with a quadrupole moment therebetween is exposed to a beam of laser radiation. The photons in the laser beam have an energy which is substantially equal to one-half the energy difference between the first and second levels.
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