| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1537493 | Optics Communications | 2011 | 4 Pages |
Abstract
⺠We fabricated microstructures and diffraction gratings in polystyrene and observed emission from the fs laser modified regions. ⺠Fabrication of structures at lower energies (nJ) and higher scanning speeds lead to formation of luminescent micro-craters. ⺠Shift in the emission peak at different excitation wavelengths showed formation of several optical centers such as trans-stilbene, diphenylhexatriene (DPHT), and diphenylbutadiene (DPBD). ⺠The excitation spectrum by monitoring different emission wavelengths show similar spectrum.
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Authors
K.L.N. Deepak, R. Kuladeep, D. Narayana Rao,