Doppler-free Two-photon Spectroscopy |
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4d level 4d transition A. L. Schawlow angular momentum atomic beam apparatus beam waist Biraben Cagnac Calculated oscillator strengths Chapter cw dye laser density Doppler background Doppler broadening doublet dye laser electric field electron experiment experimental fluorescence frequency scan ground Grynberg Happer highly excited hyperfine structure intensity interferometer intermediate inverted J. E. Bjorkholm JETP Letters K. C. Harvey Khadjavi laser beam lens Letters 32 light beams light shifts line shape magnetic fields matrix elements measured Meisel milliwatts molecular multiphoton natural linewidth neighboring levels observed obtained oven P. F. Liao peak perturbation photomultiplier photon Phys polarizability possible produced resonance scalar polarizability shown in Fig sodium spectrum Stark effect Stark plates Stark shifts structure splitting studied T. W. Hänsch techniques tensor polarizability transition probability treated two-photon absorption two-photon transition Vasilenko velocity wavefunctions width Wigner-Eckart theorem Zeeman Zeeman effect Zeeman splitting δω