✦ LIBER ✦

Absolute polarization and microwave-optical-photoselection spectroscopy (MOPS) of the zero-field transitions of the triplet state

✍ Scribed by M.A. El-Sayed; E. Gossett; M. Leung

Publisher: Elsevier Science
Year: 1973
Tongue: English
Weight: 642 KB
Volume: 21
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(73)80005-3

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✦ Synopsis

By rqkmg the h&x wIti an ext?rrd horn UI the phosphorescence-microwave double resonance (PMDR) experu-nent, the poiarlzatlon characterlstbcs of the mlcrowave radlntlon could be uhtlzed The determmatIon of the at+ solute polxnatlon and thus the asspment of the zero-field (zf) transItIons and their hyperfine structure IS made convemently :I moved smgle crystals are used and the mtenslty of the optlcally detected mlcmwave signals are detcrmined along the &fferent crystal a_xes_ In a randomly orlented sample three-, four-(or more) step photoselectlon experlments un be performed from which the duectlon of the electric dqole trnnsltion moments of the singlet-smglet and trlplet--trIplet absorption, m addition to the phosphorescence an? fluorescence emlsslon, can be detennmed relntlve to the three orthogonal magnetic traFsitlon moments of the zf transltlons of the Lowest trlplet state The potentml USC of these expcrrments m determmmg the orlentatron and type of dIstortion of probe molecules embedded m tne sohd state as well ns tr!p!et-trlpltt energy transfer orlentatlon cependence IS brIefly dlscussed

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