Off-axis parabolic mirror optics for polarized Raman spectroscopy at low temperature
| Autor: | Chelwani, N., Hoch, D., Jost, D., Botka, B., Scholz, J. -R., Richter, R., Theodoridou, M., Kretzschmar, F., Böhm, T., Kamarás, K., Hackl, R. |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Appl. Phys. Lett. 110, 193504 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.4983197 |
| Popis: | 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 $\pi$ corresponding to a numerical aperture of N.A.\,$\approx 0.85$. 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 (TERS) at low temperature. Comment: 4 pages 5 figures |
| Databáze: | arXiv |
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