Search or filter publications

Filter by type:

Filter by publication type

Filter by year:

to

Results

  • Showing results for:
  • Reset all filters

Search results

  • Journal article
    THOMPSON RC, BARWOOD GP, GILL P, 1986,

    LASER COOLING OF MAGNESIUM-IONS CONFINED IN A PENNING TRAP

    , OPTICA ACTA, Vol: 33, Pages: 535-543, ISSN: 0030-3909
  • Journal article
    Hinds EA, Prestage JD, Pichanick FMJ, 1986,

    Analysis of a level-crossing experiment on the 2 P3 state of He3

    , Physical Review A, Vol: 33, Pages: 68-71, ISSN: 1050-2947

    We have used the theory presented by us in a recent paper to analyze a 1967 level-crossing experiment on the 2 P3 state of He3 performed at the University of Michigan. Until now a consistent analysis of the experiment had not been possible because of inadequate development of the theory. The present analysis gives excellent agreement with the results of an atomic beam magnetic resonance experiment performed recently by us at Yale University. In fact we have used the combined data to give slightly improved results for four of the 11 relevant parameters. These four are the spin-antisymmetric contact hyperfine interaction constant [C'=-4327(69) MHz)], the 2 P3 dipole hyperfine interaction constant [D=-28.145(21) MHz], the 2 P3 tensor hyperfine interaction constant [E=-7.1353(38) MHz], and the orbital g factor [gL=0.999 828 6(20)].. AE © 1986 The American Physical Society.
  • Journal article
    Anderson A, Haroche S, Hinds EA, Jhe W, Meschede D, Moi Let al., 1986,

    Reflection of thermal Cs atoms grazing a polished glass surface

    , Physical Review A, Vol: 34, Pages: 3513-3516, ISSN: 1050-2947

    We present an experimental study which shows that a large fraction (≤ 50%) of thermal Cs atoms are nearly specularly reflected by polished glass surfaces at grazing incidence. This effect is interesting in the context of projects aimed at storing cold alkali-metal atoms in boxes. © 1986 The American Physical Society.
  • Journal article
    KNIGHT PL, 1986,

    QUANTUM FLUCTUATIONS AND SQUEEZING IN THE INTERACTION OF AN ATOM WITH A SINGLE FIELD MODE

    , PHYSICA SCRIPTA, Vol: T12, Pages: 51-55, ISSN: 0281-1847
  • Report
    Thompson RC, 1986,

    The NPL Ion Traps
  • Journal article
    Hinds EA, Prestage JD, Pichanick FMJ, 1985,

    Phenomenological theory of the 23P state of He3

    , Physical Review A, Vol: 32, Pages: 2615-2621, ISSN: 1050-2947

    For the first time, a theory has been developed for the structure of the 23P state of He3 which is consistent with all experimental data. Using our effective Hamiltonian, containing both spin-symmetric and -antisymmetric operators, we have obtained new values for several important hyperfine parameters. The three most accurate of these are the spin-symmetric constants C, D, and E corresponding, respectively, to the contact, orbital, and tensor interactions. We find C=4283.84-0.01+0.02 MHz, D=-28.145(21) MHz, and D/E=-3.9445(21). We have also obtained improved values for other hyperfine parameters and for the orbital g factor. Our results are shown to be in agreement with ab initio calculations after making some plausible corrections for isotope and relativistic shifts. We believe that this state is now well understood at the level of 20 kHz in the interaction constants. © 1985 The American Physical Society.
  • Journal article
    Prestage JD, Johnson CE, Hinds EA, Pichanick FMJet al., 1985,

    Precise study of hyperfine structure in the 23P state of He3

    , Physical Review A, Vol: 32, Pages: 2712-2724, ISSN: 1050-2947

    The optical-microwave atomic-beam magnetic resonance technique has been used to measure four hyperfine transitions in the 23P state He3. These were used to determine the three hyperfine interaction constants (in MHz) as follows: contact, C=-4283.84-0.01+0.02; nuclear-moment-electron-orbit, D=-28.060.06; nuclear-moment-electron-momment, E=+7.100.02. THe results, which are in excellent agreement with theory, give a clear indication of the effects of core polarization on the hyperfine structure. We conclude that to the accuracy indicated the structure of the 2 3P state, including mass-dependet and quantum electrodynamic corrections to the fine structure, and relativistic and core-polarization corrections to the hyperfine structure, is well understood. © 1985 The American Physical Society.
  • Journal article
    DALTON BJ, MCDUFF R, KNIGHT PL, 1985,

    COHERENT POPULATION TRAPPING - 2 UNEQUAL PHASE FLUCTUATING LASER FIELDS

    , OPTICA ACTA, Vol: 32, Pages: 61-70, ISSN: 0030-3909
  • Journal article
    CODLING K, FRASINSKI LJ, RANDALL KJ, 1985,

    COMPETITION BETWEEN AUTOIONIZATION AND PREDISSOCIATION IN THE RYDBERG SERIES APPROACHING THE C4-SIGMA-M- STATE OF O-2+

    , JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 18, Pages: L251-L257, ISSN: 0953-4075
  • Journal article
    THOMPSON RC, 1985,

    HIGH-RESOLUTION LASER SPECTROSCOPY OF ATOMIC SYSTEMS

    , REPORTS ON PROGRESS IN PHYSICS, Vol: 48, Pages: 531-578, ISSN: 0034-4885
  • Journal article
    BARR JRM, GIRKIN JM, FERGUSON AI, BARWOOD GP, GILL P, ROWLEY WRC, THOMPSON RCet al., 1985,

    INTERFEROMETRIC FREQUENCY MEASUREMENTS OF TE-130(2) TRANSITIONS AT 486 NM

    , OPTICS COMMUNICATIONS, Vol: 54, Pages: 217-221, ISSN: 0030-4018
  • Journal article
    BARNETT SM, KNIGHT PL, 1985,

    THERMOFIELD ANALYSIS OF SQUEEZING AND STATISTICAL MIXTURES IN QUANTUM OPTICS

    , JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, Vol: 2, Pages: 467-479, ISSN: 0740-3224
  • Journal article
    BALDWIN KGH, MARANGOS JP, BURGESS DD, GOWER MCet al., 1985,

    GENERATION OF TUNABLE COHERENT VUV RADIATION BY ANTI-STOKES RAMAN-SCATTERING OF EXCIMER-PUMPED DYE-LASER RADIATION

    , OPTICS COMMUNICATIONS, Vol: 52, Pages: 351-354, ISSN: 0030-4018
  • Journal article
    FRASINSKI LJ, RANDALL KJ, CODLING K, 1985,

    PREDISSOCIATION OF THE C4-SIGMA-MU- STATE OF O2+

    , JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 18, Pages: L129-L135, ISSN: 0953-4075
  • Journal article
    Thompson RC, 1984,

    Spectroscopy of novel systems

    , Nature, Vol: 312, ISSN: 0028-0836

    Atomic spectroscopy is alive and well thanks to the continuing development of novel experimental techniques and their application to new areas of interest. © 1984 Nature Publishing Group.
  • Conference paper
    Frieze W, Hinds EA, Kponou A, Hughes VW, Pichanick FMJet al., 1984,

    HELIUM FINE STRUCTURE AND THE FINE STRUCTURE CONSTANT.

    , Pages: 149-151, ISSN: 0083-1883

    A series of precision measurements have been made of a specified fine structure interval in the 2**3P state of helium. The results are nu //0//1 equals 29 616. 864(36) MHz (1. 2 ppm), nu //1//2 equals 2 291. 196(5) MHz (2. 2 ppm), and nu //0//2 equals 31 908. 040(20) MHz (0. 6 ppm). These results are self-consistent and in good agreement with theory. Experiment and theory can be combined to produce an independent value for the fine structure constant alpha ** minus **1 equals 137. 036 13(11) (0. 8 ppm), in good agreement with the more accurate value currently accepted alpha ** minus **1 equals 137. 035 963(15) (0. 11 ppm).
  • Conference paper
    Hershcovitch AI, Hinds EA, 1984,

    GENERATION OF INTENSE POLARIZED BEAMS BY SELECTIVE NEUTRALIZATION OF NEGATIVE IONS.

    , Pages: 763-768, ISSN: 0094-243X
  • Journal article
    NEW GHC, CATHERALL JM, 1984,

    PROBLEMS IN THE SELF-CONSISTENT PROFILE APPROACH TO THE THEORY OF LASER MODE-LOCKING

    , OPTICS COMMUNICATIONS, Vol: 50, Pages: 111-116, ISSN: 0030-4018
  • Journal article
    RADMORE PM, KNIGHT PL, 1984,

    2-PHOTON IONIZATION - INTERFERENCE AND POPULATION TRAPPING

    , PHYSICS LETTERS A, Vol: 102, Pages: 180-185, ISSN: 0375-9601
  • Journal article
    BALDWIN KGH, MARANGOS JP, BURGESS DD, 1984,

    APPLICATION OF COHERENT VUV RADIATION TO THE MEASUREMENT OF LYMAN-ALPHA ABSORPTION LINESHAPES IN A DENSE Z-PINCH PLASMA

    , JOURNAL OF PHYSICS D-APPLIED PHYSICS, Vol: 17, Pages: L169-L173, ISSN: 0022-3727
  • Journal article
    PATEL RG, PATEL MP, PATEL HC, PATEL RBet al., 1984,

    RESPONSE OF ARHAR VARIETIES TO VARYING ROW SPACINGS AND LEVELS OF FERTILIZERS UNDER CLAYEY SOILS OF SOUTH GUJARAT

    , INDIAN JOURNAL OF AGRONOMY, Vol: 29, Pages: 135-136, ISSN: 0537-197X
  • Journal article
    PATEL RB, PATEL CL, PATEL ZG, NAIK AG, PATEL IGet al., 1984,

    RESPONSE OF PADDY VARIETY GAUR-2 TO VARYING LEVELS OF NITROGEN AND ITS SPLIT APPLICATION

    , INDIAN JOURNAL OF AGRONOMY, Vol: 29, Pages: 205-208, ISSN: 0537-197X
  • Journal article
    BARNETT SM, KNIGHT PL, 1984,

    COLLECTIVE AND QUANTUM EFFECTS IN MODELS OF RYDBERG ATOM MASER EVOLUTION

    , OPTICA ACTA, Vol: 31, Pages: 435-452, ISSN: 0030-3909
  • Journal article
    KNIGHT PL, LAUDER MA, RADMORE PM, DALTON BJet al., 1984,

    MAKING ATOMS TRANSPARENT - TRAPPED SUPERPOSITIONS

    , ACTA PHYSICA AUSTRIACA, Vol: 56, Pages: 103-117, ISSN: 0001-6713
  • Journal article
    PATEL RG, PATEL MP, PATEL HC, PATEL RBet al., 1984,

    EFFECT OF GRADED-LEVELS OF NITROGEN AND PHOSPHORUS ON GROWTH, YIELD AND ECONOMICS OF SUMMER MUNGBEAN

    , INDIAN JOURNAL OF AGRONOMY, Vol: 29, Pages: 291-294, ISSN: 0537-197X
  • Journal article
    Prestage JD, Hinds EA, Pichanick FMJ, 1983,

    Precise measurements of hyperfine structure in the 2 P3 state of He3

    , Physical Review Letters, Vol: 50, Pages: 828-832, ISSN: 0031-9007

    Transitions within the 2 P3 state of He3 were measured to determine the parameters C, D, and E which represent respectively the contact, dipole, and tensor terms in the hyperfine Hamiltonian. For the first time, the effect of core polarization on the hyperfine structure has been detected. The present results are C=-4283.84(1) MHz, D=-28.02(6) MHz, and E=+7.08(2) MHz and are consistent with the theoretical values after the combined fine and hyperfine interactions with the 2 P1 state are taken into account in the analysis of the data. © 1983 The American Physical Society.
  • Journal article
    NEW GHC, ZENTENO LA, RADMORE PM, 1983,

    NEW TECHNIQUES IN THE THEORY OF ACTIVE MODE-LOCKING

    , OPTICS COMMUNICATIONS, Vol: 48, Pages: 149-154, ISSN: 0030-4018
  • Journal article
    PATEL IS, PATEL RB, 1983,

    RESPONSE OF RICE VARIETIES TO AGE OF SEEDLINGS IN SUMMER SEASON

    , INDIAN JOURNAL OF AGRONOMY, Vol: 28, Pages: 313-314, ISSN: 0537-197X
  • Journal article
    STACEY DN, THOMPSON RC, 1983,

    SELF-BROADENING AT LOW-DENSITIES IN THE SPECTRUM OF NEON

    , JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 16, Pages: 537-551, ISSN: 0953-4075
  • Journal article
    NEW GHC, 1983,

    THE GENERATION OF ULTRASHORT LASER-PULSES

    , REPORTS ON PROGRESS IN PHYSICS, Vol: 46, Pages: 877-971, ISSN: 0034-4885

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://www.imperial.ac.uk:80/respub/WEB-INF/jsp/search-t4-html.jsp Request URI: /respub/WEB-INF/jsp/search-t4-html.jsp Query String: id=213&limit=30&resgrpMemberPubs=true&resgrpMemberPubs=true&page=79&respub-action=search.html Current Millis: 1737434534575 Current Time: Tue Jan 21 04:42:14 GMT 2025