抄録
The super-resolution near-field structure permits the formation of short-lived subdiffraction limit apertures that channel electromagnetic energy at the aperture boundary. This effect is commonly observed when a laser is focused onto a thin film of Sb based material. The aperture formation within Sb, Sb2 Te3, Sb2 Te, and SbTe is investigated by time resolved optical pump-probe techniques and found to occur without melting. Ab initio modeling has shown a threshold-like change in the optical properties below the melting temperature which leads to the formation of a near-field aperture. This threshold is shown to be a consequence of thermally induced misalignment of p-type bonding.
本文言語 | English |
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論文番号 | 161906 |
ジャーナル | Applied Physics Letters |
巻 | 97 |
号 | 16 |
DOI | |
出版ステータス | Published - 2010 10 18 |
外部発表 | はい |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)