Open AccessVariable-temperature variable-field magnetic circular photoluminescence (VTVH-MCPL) spectroscopy for electronic-structure determination in nanoscale chemical systems
Author(s) -
Patrick J. Herbert,
Utsab Mitra,
Kenneth L. Knappenberger
Publication year - 2017
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.42.004833
Subject(s) - photoluminescence , optics , materials science , spectroscopy , nanoscopic scale , magnetic field , variable (mathematics) , field (mathematics) , optoelectronics , physics , nanotechnology , quantum mechanics , mathematical analysis , mathematics , pure mathematics
In this Letter, we describe variable-temperature variable-field magnetic circular photoluminescence (VTVH-MCPL) spectroscopy as a complementary technique to absorption-based magnetic circular dichroism. A paramagnetic model system, Au 25 (SC 8 H 9 ) 18 , is chosen to demonstrate the information content that is obtained from VTVH-MCPL. Specifically, the methods and analyses for the determination of electronic Landé g-factors, zero-field energy splittings, and relative A-, B-, and C-term contributions to the MCPL response are detailed. The determination of these system properties from photoluminescence data suggests the feasibility of point-source-based super-resolution magneto-optical microscopy.