NANOPHOTONIC MATERIALS & DEVICES
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Welcome to the Bradley Group

Developing new materials and devices for emerging micro- and nanophotonic systems
Research highlights
About The Group
McMaster University
McMaster Daily News Article Feb 2017

Recent News

Congratulations to Renjie for his publication in Optical Materials on spectroscopy of Er-Yb co-doped alumina films.

Congratulations to Khadijeh for her manuscript accepted in OSA Continuum on four-wave-mixing in hybrid TeO2-Si3N4 microring resonators.

Congratulations to Dawson for his paper published in Optics Express on Er-Yb co-doped optical amplifiers on silicon!

Congratulations to Hamidu, Cameron and Jeremy for their recent publications in the IEEE Photonics Journal on engineered dispersion and nonlinearity in hybrid TeO2-Si3N4 waveguides, Optics Express on tellurium-oxide functionalized SWG waveguides and Thin Solid Films on low-loss germanium oxide thin films, respectively.

Hamidu and Henry recently presented at the CLEO 2020 virtual conference. The team also contributed four presentations at the Photonics North virtual conference in May 2020.

Welcome to the group Alex and Sam for summer research!

Henry Frankis recently published his work on erbium amplifiers in Photonics Research.

Khadijeh Miarabbas Kiani recently published her work on thulium on-chip amplifiers in Optics Letters.
All News
Ultra-compact and low-threshold thulium microcavity laser monolithically integrated on silicon (1)

Recent Publications

H. C. Frankis, H. M. Mbonde, D. B. Bonneville, C. Zhang, R. Mateman, A. Leinse, and J. D. B. Bradley, “Erbium-doped TeO2-coated Si3N4 waveguide amplifiers with 5 dB net gain” Photonics Research 8(2), 127–134 (2020).
K. Miarabbas Kiani, H. C. Frankis, H. M. Mbonde, R. Mateman, A. Leinse, A. P. Knights, and J. D. B. Bradley, “Thulium-doped tellurium oxide waveguide amplifier with 7.6 dB net gain on a silicon nitride chip” Optics Letters 44(23), 5788–5791 (2019).
D. B. Bonneville, M. A. Mendez-Rosales, H. C. Frankis, L. Monteiro Goncalves, R. N. Kleiman, and J. D. B. Bradley, “Flexible and low-cost fabrication of optical waveguides by UV laser resist-mask writing” Optical Materials Express 9(4), 1728–1737 (2019).
H. C. Frankis, K. Miarabbas Kiani, D. Su, R. Mateman, A. Leinse, and J. D. B. Bradley, “High-Q tellurium-oxide-coated silicon nitride microring resonators​,” Optics Letters 44(1), 118–121 (2019).
H. C. Frankis, D. Su, D. B. Bonneville, and J. D. B. Bradley, “A tellurium oxide microcavity resonator sensor integrated on-chip with a silicon waveguide,” Sensors 18(11), 4061 (2018).
J. W. Miller, Z. Khatami, J. Wojcik, J. D. B. Bradley, and P. Mascher, “Integrated ECR-PECVD and magnetron sputtering system for rare-earth-doped Si-based materials,” Surface and Coatings Technology, in press, available online 26 August 2017.
Publications
Laser integrated on a silicon chip

Projects Available

Our group is always looking for motivated, enthusiastic and highly qualified students who are interested in photonics.  Please contact Dr. Bradley about available Undergraduate, Master's and Ph.D. projects.
Contact Dr. Bradley
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