Accession Number : AD0748097

Title :   Research Investigation Directed Toward Extending the Useful Range of the Electromagnetic Spectrum.

Descriptive Note : Progress rept. no. 22, 1 Jul 71-30 Jun 72,

Corporate Author : COLUMBIA RADIATION LAB NEW YORK

Personal Author(s) : Hartmann,Sven R. ; Happer,William

Report Date : 30 JUN 1972

Pagination or Media Count : 113

Abstract : ;Contents: Atomic hyperfine structure; Atomic lifetimes; Atomic frequency standards; Microwave spectroscopy; Molecular beam maser spectroscopy; Optical radio-frequency double-resonance studies of molecular excited states; Interaction between a neutral beam and a conducting surface; Adiabatic demagnetization in the rotating frame; Photon-echo resonance in neodymium; Photon-echo resonance in ruby; Echo behavior in ruby; Raman echoes; Coherence effects in two-photon absorption; Frequency shifts in resonant systems; Superradiance and pulse propagation; Quantized rotation of superfluid helium; Velocity-dependent occupation of the helium II superfluid state.

Descriptors :   (*ATOMIC SPECTROSCOPY, REPORTS), (*MOLECULAR SPECTROSCOPY, REPORTS), (*SOLID STATE PHYSICS, REPORTS), MICROWAVE SPECTROSCOPY, ELECTRON TRANSITIONS, ATOMIC ENERGY LEVELS, STARK EFFECT, EXCITATION, MASERS, RUBY, NEODYMIUM, SUPERFLUIDITY, HELIUM, CRYOGENICS, STANDARDS

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE