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pro vyhledávání: '"Gray, Dodd"'
Inverse design of optical components based on adjoint sensitivity analysis has the potential to address the most challenging photonic engineering problems. However existing inverse design tools based on finite-difference-time-domain (FDTD) models are
Externí odkaz:
http://arxiv.org/abs/2405.10901
Autor:
Loh, William, Reens, David, Kharas, Dave, Sumant, Alkesh, Belanger, Connor, Maxson, Ryan T., Medeiros, Alexander, Setzer, William, Gray, Dodd, DeBry, Kyle, Bruzewicz, Colin D., Plant, Jason, Liddell, John, West, Gavin N., Doshi, Sagar, Roychowdhury, Matthew, Kim, May, Braje, Danielle, Juodawlkis, Paul W., Chiaverini, John, McConnell, Robert
Optical atomic clocks have demonstrated revolutionary advances in precision timekeeping, but their applicability to the real world is critically dependent on whether such clocks can operate outside a laboratory setting. The challenge to clock portabi
Externí odkaz:
http://arxiv.org/abs/2403.12794
Autor:
Loh, William, Gray, Dodd, Irion, Reed, May, Owen, Belanger, Connor, Plant, Jason, Juodawlkis, Paul W., Yegnanarayanan, Sivasubramaniam
Low phase noise microwave oscillators are at the center of a multitude of applications that span the gamut of photonics and electronics. Within this space, optically-derived approaches to microwave frequency synthesis are particularly compelling owin
Externí odkaz:
http://arxiv.org/abs/2312.05384
Autor:
Jazayerifar, Mahmoud, Namdari, Meysam, Hamerly, Ryan, Gray, Dodd, Rogers, Christopher, Jamshidi, Kambiz
In this paper, we analytically describe the parametric amplification in ring resonators using silicon and silicon nitride waveguides. Achievable gain and bandwidth of the ring-based amplifiers are studied taking into account the Kerr nonlinearity for
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A35122
https://tud.qucosa.de/api/qucosa%3A35122/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A35122/attachment/ATT-0/
Autor:
Gray, Dodd, Hamerly, Ryan, Namdari, Meysam, Cătuneau, Mircea-Traian, Bogdanowicz, Nate, Mabuchi, Hideo, Jamshidi, Kambiz
Publikováno v:
Phys. Rev. Applied 14, 024073 (2020)
We demonstrate voltage-tunable thermo-optic bi- and tri-stability in silicon photonic microring resonators with lateral p-i-n junctions and present a technique for characterizing the thermo-optic transient response of integrated optical resonators. O
Externí odkaz:
http://arxiv.org/abs/2003.09978
Autor:
de Cea, Marc, Wollman, Emma E., Atabaki, Amir H., Gray, Dodd J., Shaw, Matthew D., Ram, Rajeev J.
Scalable, high speed data transfer between cryogenic (0.1-4 K) and room temperature environments is instrumental in a broad range of fields including quantum computing, superconducting electronics, single photon imaging and space-based communications
Externí odkaz:
http://arxiv.org/abs/2002.00063
Publikováno v:
Phys. Rev. B 100, 155405 (2019)
The strong Coulomb forces in monolayer transition metal dichalcogenides ensure that optical excitation of band electrons gives rise to Wannier-Mott excitonic states, each of which can be conceptualized as a composite of a Gaussian wavepacket correspo
Externí odkaz:
http://arxiv.org/abs/1904.10084
Akademický článek
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Publikováno v:
Phys. Rev. Materials 2, 094003 (2018)
We report on a laser annealing procedure which greatly improves the quality of suspended monolayers of chemical vapor deposition (CVD) grown MoSe2. Annealing with a green laser locally heats the suspended flake to approximately 600 K, which both remo
Externí odkaz:
http://arxiv.org/abs/1804.07880
Publikováno v:
J. Lightw. Technol. 36(19), 4671 (2018)
We model optical parametric oscillation in ring cavities with two-photon absorption, focusing on silicon at 1.55$\mu$m. Oscillation is possible if free-carrier absorption can be mitigated; this can be achieved using carrier sweep-out in a reverse-bia
Externí odkaz:
http://arxiv.org/abs/1802.00071