000227812 001__ 227812
000227812 005__ 20190617200526.0
000227812 0247_ $$2doi$$a10.1063/1.4974311
000227812 02470 $$2ISI$$a000395387000002
000227812 037__ $$aARTICLE
000227812 245__ $$aEfficient continuous-wave nonlinear frequency conversion in high-Q gallium nitride photonic crystal cavities on silicon
000227812 269__ $$a2017
000227812 260__ $$bAmer Inst Physics$$c2017$$aMelville
000227812 300__ $$a7
000227812 336__ $$aJournal Articles
000227812 520__ $$aWe report on nonlinear frequency conversion from the telecom range via second harmonic generation (SHG) and third harmonic generation (THG) in suspended gallium nitride slab photonic crystal (PhC) cavities on silicon, under continuous-wave resonant excitation. Optimized two-dimensional PhC cavities with augmented far-field coupling have been characterized with quality factors as high as 4.4 x 10(4), approaching the computed theoretical values. The strong enhancement in light confinement has enabled efficient SHG, achieving a normalized conversion efficiency of 2.4 x 10(-3) W-1, as well as simultaneous THG. SHG emission power of up to 0.74 nW has been detected without saturation. The results herein validate the suitability of gallium nitride for integrated nonlinear optical processing. (C) 2017 Author(s).
000227812 6531_ $$aFrequency conversion
000227812 6531_ $$aPhotonics
000227812 6531_ $$aAutomated optimization
000227812 6531_ $$aPhotonic crystal
000227812 6531_ $$aSemiconductor
000227812 6531_ $$aGallium nitride
000227812 6531_ $$aNonlinear optics
000227812 700__ $$0247981$$g241359$$uEcole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland$$aMohamed, Mohamed Sabry
000227812 700__ $$uUniv Pavia, Dipartimento Fis, Via Bassi 6, I-27100 Pavia, Italy$$aSimbula, Angelica
000227812 700__ $$0240056$$g104706$$uEcole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland$$aCarlin, Jean-Francois
000227812 700__ $$0246209$$g200590$$uEcole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland$$aMinkov, Momchil
000227812 700__ $$uUniv Pavia, Dipartimento Fis, Via Bassi 6, I-27100 Pavia, Italy$$aGerace, Dario
000227812 700__ $$0240001$$g103561$$uEcole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland$$aSavona, Vincenzo
000227812 700__ $$0244550$$g161577$$uEcole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland$$aGrandjean, Nicolas
000227812 700__ $$aGalli, Matteo$$uUniv Pavia, Dipartimento Fis, Via Bassi 6, I-27100 Pavia, Italy
000227812 700__ $$aHoudre, Romuald$$uEcole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland$$g105419$$0240344
000227812 773__ $$j2$$tAPL Photonics$$k3$$q031301
000227812 8564_ $$uhttp://doi.org/10.1063/1.4974311$$zURL
000227812 8564_ $$uhttps://infoscience.epfl.ch/record/227812/files/Minkov_GaN_SHG.pdf$$zPublisher's version$$s7084820$$yPublisher's version
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000227812 937__ $$aEPFL-ARTICLE-227812
000227812 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000227812 980__ $$aARTICLE