Black phosphorus is integrated on a silicon waveguide to make a photodetector with remarkable responsivity and, at the same time, very low dark current.
Nature Photonics (2015)
Photon Shuttle: An optomechanical see-saw that can shuttle photons between two distant photonic crsytal cavities.
Nature Nanotechnology (2014)
Silicon on Anything Photonics: Silicon can be transferred to calcium difluoride to unleash its potential in mid-infrared photonics.
Surface Acoustic Wave Photonics: Acoustic wave with frequency above 10 GHz can be generated on piezoelectric aluminum nitride to modulate a photonic ring resonator.
Nature Communications (2014)
Research Synopsis: Our research is conducted at the convergence of two central areas of nanotechnology-nanophotonicsand nanomechanics. We develop nano-electro-mechanical systems (NEMS) and nano-opto-mechanical systems (NOMS) to explore their novel properties in both classical and quantum regimes. We study the coupling and interaction between electrical, optical and mechanical degrees of freedom (electrons, photons and phonons) in nanoscale devices. We employ state-of-the-art top-down or bottom-up approaches to fabricate devices and structures with various semiconductor and dielectric materials. We utilize integrated photonic circuits as optical breadboards to investigate and exploit the optoelectronic properties of novel materials including graphene and other emerging 2D crystals. Our interest spans from the measurement of fundamental physics parameters with the highest precision that is only bounded by the law of nature, to development of novel devices for radio-frequency, microwave and optical communication and computation, and to building tools for chemical and biomedical sensing, medical diagnostics and neuroscience.
To see a list of our group's past and current research topics, please visit the Research page.
- Graduate Students (immediate openning)
We have several openings for graduate research assistants. Admission in the spring semester is possible. Prospective graduate students interested in joining our research group should apply to the PhD program in the Department of ECE, University of Minnesota.An undergraduate degree in electrical engineering, physics, applied physics or related fields is required. Experiences and skills in nanophotonics, numerical simulation, nanofabrication, and instrument design are encouraged. To apply, send an email including a CV and a research statement to Professor Mo Li (firstname.lastname@example.org).
We acknowledge funding support prvoided by: