Abstract
The origin of sub-diffraction-limit apertures in Sb-based thin films is discussed. Electromagnetic energy can be channeled by these apertures thus allowing near-field focussing- the Super-RENS effect. The aperture formation within Sb, Sb2Te3, Sb2Te, SbTe and Ge2Sb2Te5 is investigated by time resolved optical pump-probe techniques and found to occur without melting. Density functional calculations have shown that these materials exhibit a thresholdlike change in their optical properties below their melting temperatures. The threshold is shown to be a consequence of thermally induced misalignment of p-orbital bonds. It is the non-linearity of this process that leads to the formation of the sub-diffraction-limit apertures.
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Lewis, A., Isaacson, M., Harootunian, A., and Muray, A. (1984) Ultramicroscopy 13(3), 227–231.
Tominaga, J., Nakano, T., and Atoda, N. (1998) Appl. Phys. Lett. 73, 2078–2081.
Nakai, K., Ohmaki, M., Takeshita, N., Shinoda, M., Hwang, I., Lee, T., Zhao, H., Kim, J., Hyot, B., Andre, B., Poupinet, L., Shima, T., Nakano, T., and Tominaga, J. October 2009 In Internation Symposium on Optical Memory number Th-PO-02 Nagasaki, Japan: pp. 256–257.
Tominaga, J. Phase Change Materials: Science and Applications chapter 13, pp. 285–298 Springer (2008).
Tominaga, J., Fons, P., Shima, T., Kurihara, K., Nakano, T., Kolobov, A., and Petit, S. (2006) Mater. Res. Soc. Symp. Proc. 918, 41–51.
Simpson, R. E., Krbal, M., Fons, P., Kolobov, A. V., Tominaga, J., Uruga, T., and Tanida, H. (2010) Nano. Lett. 10(2), 414–419.
Simpson, R. E., Hewak, D. W., Fons, P., Tominaga, J., Guerin, S., and Hayden, B. E. (2008) Appl. Phys. Lett. 92(14), 141921.
Simpson, R., Fons, P., Wang, X., Kolobov, A. V., Fukaya, T., and Tominaga, J. (2010) Appl. Phys. Lett. 97(16), 161906.
Clark, S., Segall, M., Pickard, C., Hasnip, P., Probert, M., Refson, K., and Payne, M. (2005) Zeitschrift für Kristallographie 220(5/6/2005), 567–570.
Kuwahara, M., Shima, T., Fons, P., Fukaya, T., and Tominaga, J. (2006) J. Appl. Phys. 100, 043106.
Lencer, D., Salinga, M., Grabowski, B., Hickel, T., and Wuttig, M. (2008) Nature Mater. 7(12), 972–977.
Shportko, K., Kremers, S., Woda, M., Lencer, D., Robertson, J., and Wuttig, M. (2008) Nature Mater. 7(7), 653–658.
Huang, B. and Robertson, J. (2010) Phys. Rev. B 81(2), 081204R.
Wei, J., Liu, J., and Jiao, X. (2009) App. Phys. Lett. 95(24), 241105.
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Simpson, R.E., Fons, P.J., Kolobov, A.V. et al. Optically Induced Sub-Wavelength Transient Apertures in Sb-Te Based Films. MRS Online Proceedings Library 1338, 320 (2011). https://doi.org/10.1557/opl.2011.988
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DOI: https://doi.org/10.1557/opl.2011.988