University of Illinois

University of Oregon

Gaurav Bahl

Jennifer T Bernhard

Sameh H Tawfick

Hailin Wang

Mark C Kuzyk

Jeewon Suh

Ali Kanj

Inbar Grinberg

Kewen Han

Donggyu Benjamin Sohn

JunHwan Kim

Christopher Peterson

Rhinithaa P Thanalakshme

A system and method include a resonator device including walls forming a channel, where the walls are shaped to simultaneously confine light in an optical mode and to confine vibration in a mechanical mode, and where the mechanical mode is selected so that vibration in the mechanical mode can couple to the optical mode. A waveguide is coupled with the resonator device for guiding a probe light through the resonator device. An electro-mechanical actuation mechanism provides a mechanical drive force to the resonator device. A photodetector measure light outputted by the waveguide after passing through the resonator device, the outputted light including a modulated version of the probe light based on passing through the resonator device and interacting with a fluid, or a fluid containing a particle, contained by the channel of the resonator device.

Real-time sensing of flowing nanoparticles with electro-opto-mechanics

A nonreciprocal device includes a waveguide through which waves at a first frequency propagate with a first wavevector and with a second wavevector in a direction opposite to the first wavevector; a frequency-dependent device that operates within a frequency range and modifies the waves through the waveguide in a way that is dependent on the first frequency; and a set of couplers to couple the waveguide and the frequency-dependent device. Coupling rates of the set of couplers are modulated to enable nonreciprocal coupling, with respect to the frequency-dependent device, of the first wavevector compared to the second wavevector.

Nonreciprocal devices having reconfigurable nonreciprocal transfer functions through nonreciprocal coupling

Systems and methods provide a nonreciprocal nanophotonic modulator. In some examples, the modulator utilizes acoustic pumping, instead of optical pumping with lasers, and is capable of achieving GHz bandwidth.

System and method for breaking time-reversal symmetry with acoustic pumping of nanophotonic circuits

The present disclosure provides a device and method for producing low-frequency magnetic-field signals to enable long-range wireless communication through conductive media. The magnetic-field signals can be generated by mechanically moving permanent magnets. In some examples, transmitters are capable of transmitting signals in the ultra-low and very-low frequency ranges (e.g., 100 Hz-30 kHz), utilizing a small amount of power.

System and method for mechanically-based magnetic-field transmitter

A system and method includes nano opto-mechanical-fluidic resonators (nano-resonators), e.g., for identification of particles, e.g., single viruses and/or cells.

System and method for nano-opto-mechanical-fluidic sensing of particles

A system and method includes a laser to create a control laser signal and a laser to create a probe laser signal. A resonator creates an acoustic signal adjacent the control laser signal and the probe laser signal. A resulting coherent interaction between the control laser signal and the probe laser signal creates a Brillouin scattering induced transparency in one direction and maintains opacity in an opposite direction.

Growing community of inventors

Champaign, IL, United States of America

Gaurav Bahl