短程旅游
发表于 2025-3-30 09:57:51
High Resolution Nonlinear Spectroscopy of Rare Earth Ions in Solidsning. Examples will be taken from a wide range of rare earth doped crystals and glasses, where it is possible to achieve a spectral resolution of better than 1 kHz corresponding to a resonance Q greater than 10. for the optical transition. We describe two-step absorption and avalanche absorption lea
Acclaim
发表于 2025-3-30 14:26:10
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insomnia
发表于 2025-3-30 17:12:12
Up-Conversion and Excited State Absorption in Laser Crystals and Glasses: Advantages and Disadvantagp-conversion processes. Such processes are shown to play active roles in some laser effects. In usual lasers they may be useful path or sometimes feed non-radiative processes. In anti-Stokes laser, where emission is at a shorter wavelength than pumping, up-conversion is used as the necessary pumping
夹克怕包裹
发表于 2025-3-31 00:30:51
Book 1994 a linear dependence between the applied electromagnetic field and the induced polarization of atoms and molecules. The validity of this assumption rests on the fact that even the most powerful conventional sources of light produce a light intensity which is not strong enough to equalize the rate of
Sputum
发表于 2025-3-31 01:57:46
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INTER
发表于 2025-3-31 08:19:58
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贫穷地活
发表于 2025-3-31 10:48:09
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斗志
发表于 2025-3-31 16:39:21
G. Baldacchinihe land in the exclusive plush part of the colonial town and the natives in another part of the town handled the waste from their consumption, showing stark separation between the haves and have-nots.
烦躁的女人
发表于 2025-3-31 17:52:43
0258-1221 umption rests on the fact that even the most powerful conventional sources of light produce a light intensity which is not strong enough to equalize the rate of978-1-4899-1192-6978-1-4899-1190-2Series ISSN 0258-1221
Palpate
发表于 2025-3-31 23:46:10
D. A. Broidoheck the performance of other media outlets and make a determination whether these other members of the confraternity are doing their part to defend the profession against governmental and private acts of intimidation and censorship.