22 pages matching matrix elements in this book
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absorption amplitude angle approximation assume atoms band beam broadened calculation cavity coefficient coherent components conduction band configuration consider corresponding crystal field density matrix density operator depends diode dipole discussed electric electromagnetic emission line emitted energy levels equations etalon excited exciton experimental Fabry-Perot factor fluorescence Fourier frequency shift function GaAs given harmonic Hence infra-red inhomogeneous integral intensity interaction interferometer inversion ions Journ laser Lett light line width linear liquids magnetic field maser matrix element measurements mirrors modes molecular molecules noise nonlinear observed obtained operation optical oscillator p-i-n diode parameters phase photoconductor photon photon numbers Phys plane polarization Raman effect Raman transition rare-earth region resolving power ruby scattering second-harmonic semiconductor shown in Fig solution spectra spectrum spontaneous emission stimulated emission stimulated Raman Stokes symmetry temperature theory threshold time-independent tion transition valence band vector velocity vibrational vibronic vibronic transitions wave wavelength