000263379 001__ 263379
000263379 005__ 20190619220154.0
000263379 022__ $$a2159-3930
000263379 02470 $$a000454172300013$$2isi
000263379 0247_ $$a10.1364/OME.9.000128$$2doi
000263379 037__ $$aARTICLE
000263379 245__ $$aPhotoinitiator-free multi-photon fabrication of compact optical waveguides in polydimethylsiloxane
000263379 260__ $$c2019$$aWashington$$bOPTICAL SOC AMER
000263379 269__ $$a2019-01-01
000263379 336__ $$aJournal Articles
000263379 520__ $$aCompact, low loss flexible optical waveguides are crucial in optofluidic and microfluidic devices for a dense integration of optical functionalities. We demonstrate the fabrication of compact optical waveguides in polydimethylsiloxane through multiphoton laser direct writing using phenylacetylene as the photosensitive monomer. Our fabrication technique employs photo-induced radical chain polymerization initiated by the monomer molecule itself without a photoinitiator. Because of the dense pi-electrons in phenylacetylene, we achieved a high refractive index contrast (Delta n >= 0.06) between the waveguide core and the PDMS cladding. This allowed for efficient waveguiding with a core size of 1.3-mu m with a measured loss of 0.03 dB/cm in the spectral band of 650-700 nm. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
000263379 650__ $$aMaterials Science, Multidisciplinary
000263379 650__ $$aOptics
000263379 650__ $$aMaterials Science
000263379 650__ $$aOptics
000263379 6531_ $$aphotopolymerization
000263379 6531_ $$aintegration
000263379 6531_ $$atechnology
000263379 6531_ $$apolymers
000263379 6531_ $$adevices
000263379 6531_ $$alight
000263379 6531_ $$apdms
000263379 700__ $$g267286$$0250557$$aPanusa, Giulia
000263379 700__ $$aPu, Ye
000263379 700__ $$g282649$$0250893$$aWang, Jieping
000263379 700__ $$0243489$$aMoser, Christophe$$g199130
000263379 700__ $$aPsaltis, Demetri$$0244715$$g174684
000263379 773__ $$k1$$j9$$q128-138$$tOptical Materials Express
000263379 8560_ $$fsilke.jan@epfl.ch
000263379 909C0 $$zMarselli, Béatrice$$0252333$$yApproved$$pLO$$xU11723$$msilke.jan@epfl.ch
000263379 909CO $$particle$$ooai:infoscience.epfl.ch:263379$$pSTI
000263379 961__ $$afantin.reichler@epfl.ch
000263379 973__ $$aEPFL$$sPUBLISHED$$rREVIEWED
000263379 980__ $$aARTICLE
000263379 980__ $$aWoS
000263379 981__ $$aoverwrite
000263379 999C0 $$xU12209$$pLAPD$$zMarselli, Béatrice$$mchristophe.moser@epfl.ch$$0252211