TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Ostertag, Edwin
A1  - Lorenz, Anita
A1  - Rebner, Karsten
A1  - Kessler, Rudolf
A1  - Meixner, Alfred
T1  - Extension of solid immersion lens technology to super-resolution Raman microscopy
JF  - Nanospectroscopy
N2  - Scanning Near-Field Optical Microscopy (SNOM) has developed during recent decades into a valuable tool to optically image the surface topology of materials with super-resolution. With aperture-based SNOM systems, the resolution scales with the size of the aperture, but also limits the sensitivity of the detection and thus the application for spectroscopic techniques like Raman SNOM. In this paper we report the extension of solid immersion lens (SIL) technology to Raman SNOM. The hemispherical SIL with a tip on the bottom acts as an apertureless dielectric nanoprobe for simultaneously acquiring topographic and spectroscopic information. The SIL is placed between the sample and the microscope objective of a confocal Raman microscope. The lateral resolution in the Raman mode is validated with a cross section of a semiconductor layer system and, at approximately 180 nm, is beyond the classical diffraction limit of Abbe.
KW  - solid immersion lens
KW  - near-field
KW  - SNOM
KW  - nanoscopy
KW  - super-resolution
Y1  - 2015
UN  - https://nbn-resolving.org/urn:nbn:de:bsz:rt2-opus4-1033
U6  - https://doi.org/10.2478/nansp-2014-0001
DO  - https://doi.org/10.2478/nansp-2014-0001
VL  - 1
IS  - 1
SP  - 1
EP  - 11
S1  - 12
PB  - de Gruyter
CY  - Berlin
ER  -