Zobrazeno 1 - 10
of 390
pro vyhledávání: '"Withford, Michael J."'
We demonstrate a novel, composite laser written 3D waveguide, fabricated in boro-aluminosilicate glass, with a refractive index contrast of 1.12 x 10^-2. The waveguide is fabricated using a multi-pass approach which leverages the respective refractiv
Externí odkaz:
http://arxiv.org/abs/2401.03382
Autor:
Martinod, Marc-Antoine, Tuthill, Peter, Gross, Simon, Norris, Barnaby, Sweeney, David, Withford, Michael J.
Integrated-optic components are being increasingly used in astrophysics, mainly where accuracy and precision are paramount. One such emerging technology is nulling interferometry that targets high contrast and high angular resolution. Two of the most
Externí odkaz:
http://arxiv.org/abs/2106.00251
Autor:
Cvetojevic, Nick, Norris, Barnaby R. M., Gross, Simon, Jovanovic, Nemanja, Arriola, Alexander, Lacour, Sylvestre, Kotani, Takayuki, Lawrence, Jon S., Withford, Michael J., Tuthill, Peter
Publikováno v:
Appl. Opt. 60, D33-D42 (2021)
One key advantage of single-mode photonic technologies for interferometric use is their ability to easily scale to an ever increasing number of inputs without a major increase in the overall device size, compared to traditional bulk optics. This is p
Externí odkaz:
http://arxiv.org/abs/2105.01381
Autor:
Norris, Barnaby R. M., Cvetojevic, Nick, Lagadec, Tiphaine, Jovanovic, Nemanja, Gross, Simon, Arriola, Alexander, Gretzinger, Thomas, Martinod, Marc-Antoine, Guyon, Olivier, Lozi, Julien, Withford, Michael J., Lawrence, Jon S., Tuthill, Peter
The characterisation of exoplanets is critical to understanding planet diversity and formation, their atmospheric composition and the potential for life. This endeavour is greatly enhanced when light from the planet can be spatially separated from th
Externí odkaz:
http://arxiv.org/abs/1911.09808
Autor:
Ng, Vincent, Vaitkus, Jesse A., Chaboyer, Zachary J., Nguyen, Thach, Dawes, Judith M., Withford, Michael J., Greentree, Andrew D., Steel, M. J.
Publikováno v:
Opt. Express 25, 2552-2559 (2017)
Using a femtosecond laser writing technique, we fabricate and characterise three-waveguide digital adiabatic passage devices, with the central waveguide digitised into five discrete waveguidelets. Strongly asymmetric behaviour was observed, devices o
Externí odkaz:
http://arxiv.org/abs/1608.07385
Autor:
Ding, Yunhong, Kamchevska, Valerija, Dalgaard, Kjeld, Ye, Feihong, Asif, Rameez, Gross, Simon, Withford, Michael J., Galili, Michael, Morioka, Toshio, Oxenlowe, Leif Katsuo
Publikováno v:
Scientific Reports, 6, 39058, 2016
Space division multiplexing using multicore fibers is becoming a more and more promising technology. In space-division multiplexing fiber network, the reconfigurable switch is one of the most critical components in network nodes. In this paper we for
Externí odkaz:
http://arxiv.org/abs/1608.05645
Autor:
Vergyris, Panagiotis, Meany, Thomas, Lunghi, Tommaso, Downes, James, Steel, M. J., Withford, Michael J., Alibart, Olivier, Tanzilli, Sébastien
Publikováno v:
Sci. Rep. 6, 35975 (2016)
Beyond the use of genuine monolithic integrated optical platforms, we report here a hybrid strategy enabling on-chip generation of configurable heralded two-photon states. More specifically, we combine two different fabrication techniques, \textit{i.
Externí odkaz:
http://arxiv.org/abs/1605.03777
Autor:
Whitford, Michelle F., Gore, Damian B., Johnsson, Mattias T., Bilgin, Ayse A., Power, Ronika K., Richards, Candace, Withford, Michael J.
Publikováno v:
In Journal of Archaeological Science: Reports August 2021 38
Publikováno v:
Appl. Phys. Lett. 107, 231106 (2015)
We demonstrate a monolithically integrable heralded photon source in a femtosecond laser direct written glass waveguide. The generation of photon pairs with a wide wavelength separation requires a concomitant large birefringence in the normal dispers
Externí odkaz:
http://arxiv.org/abs/1510.03122
Autor:
Whitford, Michelle F., Wyatt-Spratt, Simon, Gore, Damian B., Johnsson, Mattias T., Power, Ronika K., Rampe, Michael, Richards, Candace, Withford, Michael J.
Publikováno v:
In Journal of Archaeological Science: Reports October 2020 33