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Cambridge, United Kingdom

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Yamada K.,Device Technology Laboratories | Yamada K.,Nanophotonics Center | Tsuchizawa T.,Device Technology Laboratories | Tsuchizawa T.,Nanophotonics Center | And 15 more authors.
Asia Communications and Photonics Conference, ACP | Year: 2014

For medium/long-distance data communications applications, we have developed a photonic integration platform, on which high-performance silica-based passive devices, compact, high-speed silicon/germanium-based active devices, and high-speed electronic circuits can be integrated on a silicon chip. © 2014 OSA.


Yamada K.,Nanophotonics Center | Yamada K.,Nippon Telegraph and Telephone | Tsuchizawa T.,Nanophotonics Center | Tsuchizawa T.,Nippon Telegraph and Telephone | And 12 more authors.
2013 18th OptoElectronics and Communications Conference Held Jointly with 2013 International Conference on Photonics in Switching, OECC/PS 2013 | Year: 2013

For telecommunications applications of highly-integrated silicon-based photonic devices, we have developed a silicon-germanium-silica monolithic photonic integration platform, on which high-performance silica-based passive devices and compact, high-speed silicon-based dynamic/active devices can be monolithically integrated. © 2013 IEICE.


Finlayson C.,University of Cambridge | Snoswell D.,NanoPhotonics Center | Spahn P.,Deutsches Kunststoff - Institute | Baumberg J.,NanoPhotonics Center | Baumberg J.,Cambridge Nano Doctoral Training Center
Laser Focus World | Year: 2011

Polymer opal photonic-crystal fibers containing self-assembled submicron core-shell particles are exhibiting stretch-tunable color. These mechanically robust fibers have the potential to be produced in an industrially scalable extrusion process. A low-cost technique to fabricate flexible opals has been developed using melting and shear-ordering of core-shell polymer nanoparticles. This technique produces low-defect flexible polymer face-centered-cubic (fcc) opal films with fundamental optical resonances tunable across the visible and near-JR regions by varying the precursor nanosphere size from 200 to 350 nm. These polymeric opals have significant advantages over other self-assembling colloidal systems in that the structures formed are solvent-free and permanently formed as a mechanically robust solid.


Ding T.,NanoPhotonics Center | Ding T.,University of Cambridge | Herrmann L.O.,NanoPhotonics Center | De Nijs B.,NanoPhotonics Center | And 2 more authors.
Small | Year: 2015

Au nanoparticles (NPs) deposited on a substrate function as ring shaped colloidal shadow masks. Using e-beam evaporation of gold, nanometer sized gaps are formed as a result. The size of these gaps can be accurately tuned by controlling the thickness of the gold deposition, thereby tuning the plasmonic coupling of the NPs with the substrate. The clean cavity produced between the Au NPs and the Au film provides an excellent SERS platform for trace molecule detection. © 2014 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Baumberg J.,NanoPhotonics Center
Frontiers in Optics, FIO 2012 | Year: 2012

Coupling photons in an optical microcavity with semiconductor quantum wells can create new states termed "polaritons" with completely new properties. We show the capability of creating polariton condensates, manipulating quantum wavefunctions on macroscopic scales. © OSA 2012.

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