Picosecond pulsed laser induced optical dichroism in glass with embedded metallic nanoparticles

Mateusz A. Tyrk, W. Allan Gillespie, Gerhard Seifert, Amin Abdolvand

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    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 languageEnglish
    Pages (from-to)21823-21828
    Number of pages6
    JournalOptics Express
    Volume21
    Issue number19
    DOIs
    Publication statusPublished - 23 Sep 2013

    Fingerprint

    dichroism
    pulsed lasers
    nanoparticles
    glass
    polarization
    surface plasmon resonance
    lasers
    repetition
    surface layers
    silver
    fabrication
    irradiation
    thresholds
    pulses

    Keywords

    • Laser materials processing
    • Glass and other amorphous materials
    • Nanomaterials
    • Optical materials

    Cite this

    Tyrk, Mateusz A. ; Gillespie, W. Allan ; Seifert, Gerhard ; Abdolvand, Amin. / Picosecond pulsed laser induced optical dichroism in glass with embedded metallic nanoparticles. In: Optics Express. 2013 ; Vol. 21, No. 19. pp. 21823-21828.
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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 journalArticle

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    AU - Tyrk, Mateusz A.

    AU - Gillespie, W. Allan

    AU - Seifert, Gerhard

    AU - Abdolvand, Amin

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    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

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