SEARCH Articles Figures Tables Double resonance optical radio-frequency Double resonance technique, optical Double-beam optics Microwave optical double resonance spectroscopy Microwave-Optical Double-Resonance Polarization Spectroscopy Microwave-optical double Microwave-optical double resonance Microwave/optical double resonance polarisation Microwave/optical double resonance principles OPTICAL DOUBLE RESONANCE EXPERIMENTS Optical Double-Resonance and Level-Crossing Experiments with Laser Excitation Optical Pumping and Double-Resonance Techniques Optical activity compounds with double bonds Optical double resonance Optical double resonance light modulation Optical double resonance measurements Optical double resonance sensitivity Optical double resonance spectroscopies Optical frequency doubling, molecular Optical properties, layered double Optical systems double-beam optics Optical-RF Double-Resonance Technique Optics, double-focusing Radiative lifetimes optical double resonance Radiofrequency-optical double resonance spectroscopy Spectroscopy double-beam optics Spectroscopy optical radiofrequency double