Category: Blog

“Designing of strongly confined short-wave Brillouin phonons in silicon waveguide periodic lattices” is out on OpEx!

Roberto’s beautiful paper is online at Optics Express!

“Quasinormal-Mode Perturbation Theory for Dissipative and Dispersive Optomechanics” on PRL

André and team got their Christmas gift earlier in 2020 with this PRL publication! Check out the repercussion on several news outlets.

“Alumina coating for dispersion management in ultra-high Q microresonators” highlighted as “featured article” in APL Photonics!

Marvyn’s effort has payed off and his work was chosen as featured article in APL Photonics (November edition)

Marvyn’s dispersion engineering with alumina is on arXiv!

Check out this preprint (https://arxiv.org/abs/2009.07826)! Accompanying datasets and COMSOL simulation scripts are available on Zenodo (https://doi.org/10.5281/zenodo.3932243). Silica optical microspheres often exhibit ultra-high quality factors, yet, their group velocity dispersion, which is crucial for nonlinear optics applications, can only be coarsely tuned. We experimentally demonstrate that group-velocity dispersion of a silica microsphere can be engineered by …

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Natália’s GaAs bullseye structures pre-print on arXiv!

High-Frequency GaAs Optomechanical Bullseye Resonator N. C. Carvalho, R. Benevides, M. Ménard, G. S. Wiederhecker, N. C. Frateschi, T. P. M. Alegre https://arxiv.org/abs/2008.03429  

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LPD CLEO 2020 talks

André’s preprint on Non-hermitian Optomechanics is online on arXiv!

Quasinormal-mode perturbation theory for dissipative and dispersive optomechanics André G. Primo, Natália C. Carvalho, Cauê M. Kersul, Newton C. Frateschi, Gustavo S. Wiederhecker, Thiago P. Mayer Alegre https://arxiv.org/abs/2006.00692

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Laís paper on Dispersion engineering with Wedge resonators is published in Optics Letters!

Dispersion tailoring in wedge microcavities for Kerr comb generation L. Fujii, M. Inga, J. H. Soares, Y. A. V. Espinel, T. P. Mayer Alegre, and G. S. Wiederhecker https://doi.org/10.1364/OL.393294

Our plasmonic colors just came out in ACS Applied Nano Materials

Congratulations to Emerson and all the team! This is our first paper on plasmonics structures! Check it out at https://doi.org/10.1021/acsanm.9b02508

New paper on GaAs optomechanics just published in Optical Materials Express. Congratulations Rodrigo!

A method to fabricate GaAs microcavities using only a soft mask with an electrolithographic pattern in an inductively coupled plasma etching is presented. A careful characterization of the fabrication process pinpointing the main routes for a smooth device sidewall is discussed. Using the final recipe, optomechanical microdisk resonators are fabricated. The results show very high …

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