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Parabolic mirror‐assisted tip‐enhanced spectroscopic imaging for non‐transparent materials
Author(s) -
Zhang Dai,
Wang Xiao,
Braun Kai,
Egelhaaf HansJoachim,
Fleischer Monika,
Hennemann Laura,
Hintz Holger,
Stanciu Catrinel,
Brabec Christoph J.,
Kern Dieter P.,
Meixner Alfred J.
Publication year - 2009
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.2411
Subject(s) - raman spectroscopy , materials science , photoluminescence , opacity , plasmon , excitation , optoelectronics , microscope , optics , parabolic reflector , lens (geology) , signal (programming language) , physics , quantum mechanics , computer science , programming language
Abstract A versatile and efficient tip‐enhanced spectroscopic imaging technique based on a parabolic mirror (PM) assisted near‐field optical microscope is demonstrated. The replacement of the conventional objective lens with a parabolic mirror allows the non‐restricted investigation of sample materials regarding their opacity. In addition, an improved signal collection efficiency and effective excitation of the longitudinal plasmonic oscillation in the tip apex are obtained. The capabilities of PM‐assisted tip‐enhanced Raman (TER) and photoluminescence (PL) imaging in distinguishing the individual domains made of different chemical components in poly (3‐hexythiophene)/[6, 6]‐penyl‐C 61 butyric acid methyl ester (P3HT/PCBM) solar cell blend film and in the investigation of the plasmonic properties of geometrically well‐defined Au cones are demonstrated. Copyright © 2009 John Wiley & Sons, Ltd.