102 citations · 236 across the 11 of their papers we have counts for
11 papers
On-Chip High Extinction Ratio Single-Stage Mach-Zehnder Interferometer based on Multimode Interferometer
Shengjie Xie, Sylvain Veilleux, Mario Dagenais
On-chip high extinction ratio Mach-Zehnder interferometers (MZI) have always attracted interest from researchers as it can be used in many applications in astrophotonics, optical s…
Development of an integrated near-IR astrophotonic spectrograph
Pradip Gatkine, Meghna Sitaram, Sylvain Veilleux +2
Here, we present an astrophotonic spectrograph in the near-IR H-band (1.45 -1.65 ) and a spectral resolution () of 1500. The main dispersing element of the spectrograph i…
Integrated Arbitrary Filter with Spiral Gratings: Design and Characterization
Yi-Wen Hu, Shengjie Xie, Jiahao Zhan +3
We report the design and characterization of a high performance integrated arbitrary filter from 1450 nm to 1640 nm. The filter's target spectrum is chosen to suppress the night-sk…
Enabling the next generation of scientific discoveries by embracing photonic technologies
Nemanja Jovanovic, Charles Beichman, Cullen Blake +46
The fields of Astronomy and Astrophysics are technology limited, where the advent and application of new technologies to astronomy usher in a flood of discoveries altering our unde…
Astro2020: Astrophotonics White Paper
Pradip Gatkine, Sylvain Veilleux, John Mather +19
Astrophotonics is the application of versatile photonic technologies to channel, manipulate, and disperse guided light from one or more telescopes to achieve scientific objectives…
Towards a multi-input astrophotonic AWG spectrograph
Pradip Gatkine, Sylvain Veilleux, Yiwen Hu +2
Astrophotonics is the new frontier technology to develop diffraction-limited, miniaturized, and cost-effective instruments for the next generation of large telescopes. For various…
Astrophotonic Spectrographs
Pradip Gatkine, Sylvain Veilleux, Mario Dagenais
Astrophotonics is the application of photonic technologies to channel, manipulate, and disperse light from one or more telescopes to achieve scientific objectives in astronomy in a…
Arrayed Waveguide Grating Spectrometers for Astronomical Applications: New Results
Pradip Gatkine, Sylvain Veilleux, Yiwen Hu +2
One promising application of photonics to astronomical instrumentation is the miniaturization of near-infrared (NIR) spectrometers for large ground- and space-based astronomical te…
Development of high resolution arrayed waveguide grating spectrometers for astronomical applications: first results
Pradip Gatkine, Sylvain Veilleux, Yiwen Hu +4
Astrophotonics is the next-generation approach that provides the means to miniaturize near-infrared (NIR) spectrometers for upcoming large telescopes and make them more robust and…
Non-Resonant Below-Bandgap Two-Photon Absorption in Quantum Dot Solar Cells
Tian Li, Mario Dagenais
We are the first to show with clear experimental results that photons that have energy lower than the transition energy between quantum dots states and valance band can still contr…
A nanowaveguide platform for collective atom-light interaction
Y. Meng, J. Lee, M. Dagenais +1
We propose a nanowaveguide platform for collective atom-light interaction through evanescent field coupling. We have developed a 1cm-long silicon nitride nanowaveguide can use evan…