Zobrazeno 1 - 10
of 20
pro vyhledávání: '"H E D Scovil"'
Publikováno v:
Proceedings of the Physical Society. Section A. 64:601-608
In the solid state the orbital momentum of the divalent vanadium ion 3d3 is quenched by the cubic crystalline field, leaving a spin quadruplet as the ground state. Paramagnetic resonance measurements show that in V(NH4)2(SO4)2.6H2O this is split into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f606348ce8e4c84a98f911a3fec7746
https://doi.org/10.1088/0370-1298/64/7/301
https://doi.org/10.1088/0370-1298/64/7/301
Publikováno v:
Physical Review. 156:343-351
The concept of a quantum heat pump is proposed as a convenient model in the thermodynamic interpretation of certain multilevel processes. The ideal quantum heat engine is defined as an idealization of realistic pumped multilevel systems in much the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d7522b7ff9eda883faca23c4b9e31c1
https://doi.org/10.1103/physrev.156.343
https://doi.org/10.1103/physrev.156.343
Publikováno v:
Bell System Technical Journal. 38:305-334
Broadband very-low-noise microwave amplification can be obtained from solid state maser action in a propagating microwave structure. Such a traveling-wave maser produces unilateral amplification with a high degree of gain stability. The theory of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b1f576581d8bd27c9ef845e7b12f68b
https://doi.org/10.1002/j.1538-7305.1959.tb03890.x
https://doi.org/10.1002/j.1538-7305.1959.tb03890.x
Autor:
H. E. D. Scovil, J. E. Geusic
Publikováno v:
Bell System Technical Journal. 41:1371-1397
The basic ideas leading to a unidirectional traveling-wave optical maser are presented. Experimental data on the performance of pulsed ruby amplifying sections and high density PbO glass Faraday rotation isolators are given. Feasibility tests on a tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e864527ea58d428b8c32163e96cff108
https://doi.org/10.1002/j.1538-7305.1962.tb03282.x
https://doi.org/10.1002/j.1538-7305.1962.tb03282.x
Autor:
H. E. D. Scovil, H. A. Buckmaster
Publikováno v:
Canadian Journal of Physics. 34:711-721
A high sensitivity, wide or narrow band, double magnetic field modulation type paramagnetic resonance spectrometer operating at a wavelength of 1.25 cm. for use at liquid helium temperatures (4 °K.) is described. The spectrometer employs a transmiss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3196db4f555ad06bffc985e2203eec3b
https://doi.org/10.1139/p56-079
https://doi.org/10.1139/p56-079
Autor:
H. E. D. Scovil, J E Geusic
Publikováno v:
Reports on Progress in Physics. 27:241-327
The subject of masers is introduced by giving an historical account of events which led to the amplification of microwave radiation by an inverted population in a system of weakly interacting ammonia molecules. The introduction also outlines the deve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad74e2edcf72d2cf858c966bfa728771
https://doi.org/10.1088/0034-4885/27/1/306
https://doi.org/10.1088/0034-4885/27/1/306
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 223:15-29
Accurate measurements of the paramagnetic resonance spectra of gadolinium and neodymium ethyl sulphates have been made both in strong magnetic fields at a wave-length of 3 cm, and in weak fields at wave-lengths between 6 and 22 cm. (i) The Gd 3+ ion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acc1a2689febe307315a595cfbf6014b
https://doi.org/10.1098/rspa.1954.0097
https://doi.org/10.1098/rspa.1954.0097
Publikováno v:
Bell System Technical Journal. 38:335-352
The three-level excitation method for solid state masers, including some background material on paramagnetic resonance, is reviewed. With respect to the experimental application of the maser material, two cases can be distinguished, In the first, mas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7dca63101887e5c7084f3c01a4850f3e
https://doi.org/10.1002/j.1538-7305.1959.tb03891.x
https://doi.org/10.1002/j.1538-7305.1959.tb03891.x
Publikováno v:
Bell System Technical Journal. 40:1117-1127
Reflected 2390-MC signals from the Echo I satellite were received by a horn-reflector antenna and amplified by solid state traveling-wave masers. This paper describes the design of the dual channel maser amplifiers for this experiment∗ Each maser h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89cda59254f69639e085ce0ac7cd3c44
https://doi.org/10.1002/j.1538-7305.1961.tb01640.x
https://doi.org/10.1002/j.1538-7305.1961.tb01640.x
Autor:
H. E. D. Scovil, G. Feher
Publikováno v:
Physical Review. 105:760-762
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fc7b3472c8e528f87a674fce99cffbd
https://doi.org/10.1103/physrev.105.760
https://doi.org/10.1103/physrev.105.760