Výsledky vyhledávání - "J. G. Bergman"

Interaction of metal particles with adsorbed dye molecules: absorption and luminescence

Autor: Alastair M. Glass, J. G. Bergman, Paul F. Liao, D. H. Olson

Publikováno v: Optics letters. 5(9)

Absorption, luminescence, and excitation luminescence studies of dye molecules adsorbed onto ultrathin, variable-thickness silver films show strong coupling of the particle plasma resonances to the molecules. Luminescence from the dye is increased by

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a61e6b517a837d1b6c4d1411ae746ab1
https://pubmed.ncbi.nlm.nih.gov/19693231

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Prevention of pregnancy in bitches following unwanted mating: a clinical trial using low dose oestradiol benzoate

Autor: D J, Sutton, M R, Geary, J G, Bergman

Publikováno v: Journal of reproduction and fertility. Supplement. 51

A field investigation was undertaken in mated bitches to assess the efficacy and safety of a low dose of oestradiol benzoate (0.01 mg kg-1), given by subcutaneous or intramuscular injection, on days 3, 5 and sometimes day 7 after mating. Twenty-five

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::2f05da83f03bcca4d2f37e3f0bda50e4
https://pubmed.ncbi.nlm.nih.gov/9404291

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The iodine coordination polyhedron in hydrated sodium periodate determined from second harmonic generation

Autor: G. R. Crane, J. G. Bergman

Publikováno v: Inorganic Chemistry. 17:1613-1617

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38d76d50df53711baef3404c8f6c0eff
https://doi.org/10.1021/ic50184a044

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Structural aspects of nonlinear optics — tetrahedral rotations

Autor: J. G. Bergman, G.R. Crane

Publikováno v: Chemical Physics Letters. 41:133-136

We report the first use of optical second harmonic generation (SHG) as a technique for directly determining the degree to which molecules (tetrahedrons of GeO 4 and SiO 4 ) have rotated in a crystal as a function of temperature. The systems studied a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d9f7901e9f818844e794c87c9e83cb6
https://doi.org/10.1016/0009-2614(76)85264-5

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Molecular mechanics of the ferroelectric to paraelectric phase transition in LiNbO3 via optical second harmonic generation

Autor: J. G. Bergman

Publikováno v: Chemical Physics Letters. 38:230-233

Temperature dependent optical second harmonic generation (SHG) results are used to monitor the 7° trigonal deformation of the NbO 6 octahedron in ferroelectric LiNbO 3 . The SHG structural results compare favorably with those obtained from conventio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::85f68b4399a547546f068005edd612c4
https://doi.org/10.1016/0009-2614(76)85143-3

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Polarity of chemical bonds via hyperpolarizabilities. Determination of the direction of the phosphorus-hydrogen bond dipole of lithium dihydrogen phosphite from measurements of nonlinear optical coefficients

Autor: J. G. Bergman, A. P. Ginsberg, M. Maurin

Publikováno v: Journal of the American Chemical Society. 102:118-122

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e115b0848f7ae9f7eac10a89faaa7249
https://doi.org/10.1021/ja00521a021

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Surface second-harmonic generation from metal island films and microlithographic structures

Autor: A. Wokaun, J. G. Bergman, J. P. Heritage, A. M. Glass, P. F. Liao, D. H. Olson

Publikováno v: Physical Review B. 24:849-856

Enhanced second-harmonic generation is observed from silver and gold island films, and from regular arrays of Ag particles produced by microlithographic techniques. Enhancements are interpreted in terms of an electromagnetic model involving localized

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d77fd993e8181d05bc849c246c92c74
https://doi.org/10.1103/physrevb.24.849

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Enhanced two-photon fluorescence of molecules adsorbed on silver particle films

Autor: A. M. Glass, A. Wokaun, J. P. Heritage, J. G. Bergman, P. F. Liao, D. H. Olson

Publikováno v: Physical Review B. 24:4906-4909

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae2f87763c27df597645fed543892750
https://doi.org/10.1103/physrevb.24.4906

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Structural mechanics from nonlinear optics – the α to β phase transition in quartz

Autor: J. G. Bergman, G. R. Crane

Publikováno v: Journal of Applied Crystallography. 9:476-480

Second harmonic generation SHG may be used as an experimental technique in structural crystallography. By applying a bond polarizability model to the nonlinear optical coefficients of quartz, the rotation of the SiO4 tetrahedron with temperature is `

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e210bb0ebd66be95cb181102e7dcea6a
https://doi.org/10.1107/s0021889876011953

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Nonlinear optical properties of CdHg(SCN)4 and ZnHg(SCN)4

Autor: J. H. McFee, J. G. Bergman, G. R. Crane

Publikováno v: Materials Research Bulletin. 5:913-917

Negative uniaxial crystals of CdHg(SCN)4 and ZnHg(SCN)4 are shown to be useful nonlinear optical materials. Both crystals are phase matchable. Second harmonic generation experiments give the result that d31[CdHg(SCN)4] = (1.3 ± .1)d33(LiIo3). The ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0fdc29f436badabe26b688a1bac5ed71
https://doi.org/10.1016/0025-5408(70)90140-6

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