Circular polarization luminescence

Circularly Polarized Luminescence from Achiral Dyes Doped... 

Circularly Polarized Luminescence from Conjugated Polymers.472... 

A Marietta, D Gongalvcz, ON Oliveira Jr., RM Faria, and FEG Guimaraes, Circular dichroism and circularly polarized luminescence of highly oriented Langmuir-Blodgett films of poly(/j-phenylene vinylene), Synth. Met., 119 207-208, 2001. 

Circular polarized luminescence (CPL) is not covered in this book because the field of application of this phenomenon is limited to chiral systems that emit different amounts of left and right circularly polarized light. Nevertheless, it is worth mentioning that... 

D. H. Metcalf, S. W. Snyder, S. Wu, G. L. Hilmes, J. P. Riehl, J. N. Demas, and F. S. Richardson, Excited-state chiral discrimination observed by time-resolved circular polarized luminescence measurements, /. Am, Chem. Soc. 11, 3082-3083 (1989). 

In circularly polarized luminescence spectroscopy, one normally reports the ratio of Al to the total intensity 7. The results are most often reported in terms of the luminescence dissymmetry ratio, glum, which is defined as the ratio of the differential emission intensity to the average total emission intensity.75... 

Riehl, J. P. Muller, G. Circularly polarized luminescence spectroscopy from lanthanide systems. In Handbook on the Physics and Chemistry of Rare Earths, Gschneidner, K. A. Biinzli, J.-C. G. Eds. North-Holland Publishing Company Amsterdam, 2005 Vol. 34, pp 289-356. 

Maupin, C. L. Riehl, J. P. Circularly polarized luminescence and fluorescence detected circular dichroism. In Encyclopedia of Spectroscopy and Spectrometry, Lindon, J. C. Trantner, G. E. Holmes, J. L., Eds. Academic Press, 2000 pp 319-326. 

Most of the time-resolved emission spectroscopy setups are home made in the sense that they are built from individual devices (laser, detection system,. ..) hence they are not of a plug and press type, so that their exact characteristics may vary from one installation to the other. Some of these differences have no impact on the overall capabilities of the system but some have a drastic influence on the way the collected data are processed and analysed. This aspect will be detailed in the next section, while this section deals with a general description of the apparatus. The most basic type of apparatus will be described, with no reference to sophisticated techniques such as Time Correlated Single Photon Counting or Circularly Polarized Luminescence devices. 

James P. Riehl and Gilles Muller, Circularly polarized luminescence spectroscopy from lanthanide systems 289... 

Circularly polarized luminescence (CPL) from chiral molecular systems is the emission analog of circular dichroism (CD) and as such reflects the chirality of the excited state in the same maimer as CD probes reflect the chirality of the ground state (Riehl and Muller, 2005). For lanthanide ions, laige CPL (and/or CD) signals are expected for f-f transitions obeying magnetic dipole selection rules, in particular A J = 0, 1 Eu(5Do —> 7Fi), Tb(5D4 7F4, 5D4 7F5), Dy(4F9/2 6Hn/2), Yb(2Fs/2 2F7/2) emissions are typical examples. Recent... 

To date, a number of experimental studies of the excited states of ZnPc have been made available, including gas phase [172], thin film [173], solution [174, 175], and argon matrix [176] absorption spectra, solution [174, 175] and argon matrix [176] MCD spectra, solution luminescence spectra [177], and luminescence and magnetic circularly polarized luminescence (MCPL) spectra in an argon matrix [177]. 

J. E. Field, G. Muller, J. P. Riehl, D. Venkataraman, Circularly Polarized Luminescence from Bridged Triarylamine Helicenes, J. Am. Chem. Soc. 2003, 125, 11808-11809. 

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