Abstract
Picosecond (~10 ps) pulsed laser irradiation at 532 nm led to the efficient and scalable fabrication of dichroic areas in glass with spherical silver nanoparticles of ~30 – 40 nm in diameter embedded in a surface layer of thickness ~20 µm. The observed dichroism is due to the uniform and permanent shape transformation of the nanoparticles - from spherical to spheroidal shapes - throughout the irradiated areas and along the laser polarization direction, paving the way for affordable manufacture of polarization-selective diffractive optical elements. The shape modification threshold and the dichroism as a result of Surface Plasmon Resonance band separation were identified. The process was then studied as a function of the laser polarization, repetition rate and the number of pulses fired per spot.
Original language | English |
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Pages (from-to) | 21823-21828 |
Number of pages | 6 |
Journal | Optics Express |
Volume | 21 |
Issue number | 19 |
DOIs | |
Publication status | Published - 23 Sep 2013 |
Keywords
- Laser materials processing
- Glass and other amorphous materials
- Nanomaterials
- Optical materials
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Student Theses
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On the phenomenon and potential applications of pulsed laser-reshaped silver nanoparticles embedded in soda-lime glass
Author: Tyrk, M. A., 2018Supervisor: Abdolvand, A. (Supervisor) & Gillespie, W. A. (Supervisor)
Student thesis: Doctoral Thesis › Doctor of Philosophy
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