Sub-microwatt direct laser writing of fluorescent gold nanoclusters in polymer films

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Sub-microwatt direct laser writing of fluorescent gold nanoclusters in polymer films. / Bitarafan, Mohammad H.; Suomala, Sofia; Toivonen, Juha.

julkaisussa: Optical Materials Express, Vuosikerta 10, Nro 1, 2020, s. 138-148.

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Bitarafan, Mohammad H. ; Suomala, Sofia ; Toivonen, Juha. / Sub-microwatt direct laser writing of fluorescent gold nanoclusters in polymer films. Julkaisussa: Optical Materials Express. 2020 ; Vuosikerta 10, Nro 1. Sivut 138-148.

Bibtex - Lataa

@article{80decbe05e554b81841153a454cbccbb,

title = "Sub-microwatt direct laser writing of fluorescent gold nanoclusters in polymer films",

abstract = "We report on the micro-pattering of fluorescent gold nanoclusters embedded in polyvinyl alcohol film using a low-cost continuous-wave laser. We show that the formation of gold nanoclusters requires low-level laser irradiation (<100 W/cm2), corresponding to a sub-microwatt focused beam. This low-intensity requirement enables substantially higher speed and cost-effective light patterning process. As a result of using only small intensities during gold nanoclusters production, no microscopic topological changes were observed in the polymer film. This class of gold nanoclusters potentially finds application in high-speed authenticity marking and similar labeling applications.",

author = "Bitarafan, {Mohammad H.} and Sofia Suomala and Juha Toivonen",

note = "INT=phys,{"}Bitarafan, Mohammad H.{"} INT=phys,{"}Suomala, Sofia{"}",

year = "2020",

doi = "10.1364/OME.381901",

language = "English",

volume = "10",

pages = "138--148",

journal = "Optical Materials Express",

issn = "2159-3930",

publisher = "OPTICAL SOC AMER",

number = "1",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Sub-microwatt direct laser writing of fluorescent gold nanoclusters in polymer films

AU - Bitarafan, Mohammad H.

AU - Suomala, Sofia

AU - Toivonen, Juha

N1 - INT=phys,"Bitarafan, Mohammad H." INT=phys,"Suomala, Sofia"

PY - 2020

Y1 - 2020

N2 - We report on the micro-pattering of fluorescent gold nanoclusters embedded in polyvinyl alcohol film using a low-cost continuous-wave laser. We show that the formation of gold nanoclusters requires low-level laser irradiation (<100 W/cm2), corresponding to a sub-microwatt focused beam. This low-intensity requirement enables substantially higher speed and cost-effective light patterning process. As a result of using only small intensities during gold nanoclusters production, no microscopic topological changes were observed in the polymer film. This class of gold nanoclusters potentially finds application in high-speed authenticity marking and similar labeling applications.

AB - We report on the micro-pattering of fluorescent gold nanoclusters embedded in polyvinyl alcohol film using a low-cost continuous-wave laser. We show that the formation of gold nanoclusters requires low-level laser irradiation (<100 W/cm2), corresponding to a sub-microwatt focused beam. This low-intensity requirement enables substantially higher speed and cost-effective light patterning process. As a result of using only small intensities during gold nanoclusters production, no microscopic topological changes were observed in the polymer film. This class of gold nanoclusters potentially finds application in high-speed authenticity marking and similar labeling applications.

U2 - 10.1364/OME.381901

DO - 10.1364/OME.381901

M3 - Article

VL - 10

SP - 138

EP - 148

JO - Optical Materials Express

JF - Optical Materials Express

SN - 2159-3930

IS - 1

ER -

TUTCRIS