Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 21823-21828 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 21 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 23 Sep 2013 |
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Keywords
- Laser materials processing
- Glass and other amorphous materials
- Nanomaterials
- Optical materials
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Picosecond pulsed laser induced optical dichroism in glass with embedded metallic nanoparticles. / Tyrk, Mateusz A.; Gillespie, W. Allan; Seifert, Gerhard; Abdolvand, Amin.
In: Optics Express, Vol. 21, No. 19, 23.09.2013, p. 21823-21828.Research output: Contribution to journal › Article
TY - JOUR
T1 - Picosecond pulsed laser induced optical dichroism in glass with embedded metallic nanoparticles
AU - Tyrk, Mateusz A.
AU - Gillespie, W. Allan
AU - Seifert, Gerhard
AU - Abdolvand, Amin
PY - 2013/9/23
Y1 - 2013/9/23
N2 - 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.
AB - 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.
KW - Laser materials processing
KW - Glass and other amorphous materials
KW - Nanomaterials
KW - Optical materials
U2 - 10.1364/OE.21.021823
DO - 10.1364/OE.21.021823
M3 - Article
VL - 21
SP - 21823
EP - 21828
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 19
ER -