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Now showing items 1-10 of 55
Demand for electricity in Virginia
(MIT Press, 1978)
Color coding of spatial frequencies using incoherent optical processing
(Optical Society of America, 1979-10)
An incoherent optical processing technique for color coding the spatial frequency content of an input is described. Experimental results and comparison with the output of a coherent filtering system are discussed. Possible ...
Resolving Land Use Conflicts
(Farm Foundation, 1972)
Transmission-electron spin resonance in dilute CuFe alloys
(American Physical Society, 1978-04)
Alloys of Cu with nominally 5- and 10-at. ppm Fe were studied by transmission-electron spin resonance (TESR) in the temperature range 2-40 K. The samples were strained in order to remove background signals which hamper ...
Dynamic nuclear polarization with an inhomogeneously broadened ESR line. II. Experiment
(American Physical Society, 1976-05)
Results of proton dynamic nuclear polarization (DNP), nuclear spin-lattice relaxation, and ESR experiments in six YES: Er168 (Er168-doped yttrium ethyl sulphate) single crystals at 4.15 K and 9.1 GHz are reported here. ...
Volume holograms constructed from computer-generated masks
(Optical Society of America, 1978-05)
A new type of hologram that combines computer-generated holograms with volume holograms is described. This hologram allows arbitrary selection of the location and color of a computer-generated image when white light ...
Direct phase determination in crystallography
(American Physical Society, 1976-12)
It was shown theoretically that through the diffraction of two coherent beams, one is able to measure both the magnitude and phase of the structure factor directly. Here some experimental comments concerning the performance ...
Processing spatially aliased arrays
(Acoustical Society of America, 1978-09)
A linear array can detect a plane wave signai at a wrong bearing if the signal wavelengths are shorter than twice the distance between the closest adjacent sensors. This penomenon, called spatial aliasing, is most pronounced ...
Dynamic nuclear polarization in samarium-doped lanthanum magnesium nitrate
(American Physical Society, 1974-08)
We report theoretical and experimental investigations of the dynamic nuclear polarization (DNP) and nuclear spin-lattice relaxation of protons in single crystals of lanthanum magnesium nitrate (LMN) weakly doped (≅0.1-1.1-mole%) ...
Doppler-free two-photon absorption of two coherent beams
(American Physical Society, 1977-12)
Proposed and performed experiments on the Doppler-free two-photon absorption of two coherent laser beams are discussed. The coherent phenomenon in experiments follows directly from basic quantum mechanics. It is shown that, ...