Off-axis parabolic mirror optics for polarized Raman spectroscopy at low temperature

N. Chelwani, D. Hoch, D. Jost, B. Botka, J. R. Scholz, R. Richter, M. Theodoridou, F. Kretzschmar, T. Böhm, K. Kamarás, R. Hackl

Research output: Contribution to journalArticle

Abstract

We report the development of a detection optics for the integration of Raman scattering and scanning probe microscopy at low temperature based on a parabolic mirror. In our set-up, half of the paraboloid mirror covers a solid angle of π corresponding to a numerical aperture of N.A. ≈ 0.85. The optical system can be used for far- and near-field spectroscopy. In the far field, the polarizations can be maintained to within 80%-90%. In combination with a scanning microscope (AFM/STM), tunneling or near-field experiments are possible with less than 10% loss of aperture. Our set-up provides ideal conditions for the future development of tip-enhanced Raman spectroscopy at low temperature.

Original languageEnglish
Article number193504
JournalApplied Physics Letters
Volume110
Issue number19
DOIs
Publication statusPublished - May 8 2017

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far fields
paraboloid mirrors
near fields
Raman spectroscopy
optics
mirrors
scanning
numerical aperture
apertures
microscopes
atomic force microscopy
Raman spectra
microscopy
probes
polarization
spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Chelwani, N., Hoch, D., Jost, D., Botka, B., Scholz, J. R., Richter, R., ... Hackl, R. (2017). Off-axis parabolic mirror optics for polarized Raman spectroscopy at low temperature. Applied Physics Letters, 110(19), [193504]. https://doi.org/10.1063/1.4983197

Off-axis parabolic mirror optics for polarized Raman spectroscopy at low temperature. / Chelwani, N.; Hoch, D.; Jost, D.; Botka, B.; Scholz, J. R.; Richter, R.; Theodoridou, M.; Kretzschmar, F.; Böhm, T.; Kamarás, K.; Hackl, R.

In: Applied Physics Letters, Vol. 110, No. 19, 193504, 08.05.2017.

Research output: Contribution to journalArticle

Chelwani, N, Hoch, D, Jost, D, Botka, B, Scholz, JR, Richter, R, Theodoridou, M, Kretzschmar, F, Böhm, T, Kamarás, K & Hackl, R 2017, 'Off-axis parabolic mirror optics for polarized Raman spectroscopy at low temperature', Applied Physics Letters, vol. 110, no. 19, 193504. https://doi.org/10.1063/1.4983197
Chelwani N, Hoch D, Jost D, Botka B, Scholz JR, Richter R et al. Off-axis parabolic mirror optics for polarized Raman spectroscopy at low temperature. Applied Physics Letters. 2017 May 8;110(19). 193504. https://doi.org/10.1063/1.4983197
Chelwani, N. ; Hoch, D. ; Jost, D. ; Botka, B. ; Scholz, J. R. ; Richter, R. ; Theodoridou, M. ; Kretzschmar, F. ; Böhm, T. ; Kamarás, K. ; Hackl, R. / Off-axis parabolic mirror optics for polarized Raman spectroscopy at low temperature. In: Applied Physics Letters. 2017 ; Vol. 110, No. 19.
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