A5083469922- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Advanced Chemical Sensor Technologies
- Plasmonic and Surface Plasmon Research
- Silk-based biomaterials and applications
- Nanofabrication and Lithography Techniques
- Millimeter-Wave Propagation and Modeling
- Neurobiology and Insect Physiology Research
- Optical Wireless Communication Technologies
- Olfactory and Sensory Function Studies
- Marine animal studies overview
- Hearing, Cochlea, Tinnitus, Genetics
- Gas Sensing Nanomaterials and Sensors
- Near-Field Optical Microscopy
- Orbital Angular Momentum in Optics
- Biochemical and Structural Characterization
- Photoacoustic and Ultrasonic Imaging
- Spectroscopy and Laser Applications
- Acoustic Wave Resonator Technologies
- Photonic Crystals and Applications
- Animal Vocal Communication and Behavior
- Mechanical and Optical Resonators
- Antenna Design and Analysis
Magic Leap (United States)
2017-2020
Stanford University
2014-2019
Boston University
2010-2012
Gradient metasurfaces are two-dimensional optical elements capable of manipulating light by imparting local, space-variant phase changes on an incident electromagnetic wave. These surfaces have thus far been constructed from nanometallic antennas, and high diffraction efficiencies limited to operation in reflection mode. We describe the experimental realization dielectric gradient metasurface also achieving transmission mode visible spectrum. Ultrathin gratings, lenses, axicons realized...
Metasurfaces provide unprecedented control over light propagation by imparting local, space-variant phase changes on an incident electromagnetic wave. They can improve the performance of conventional optical elements and facilitate creation components with new functionalities form factors. Here, we build knowledge from shared aperture phased array antennas Si-based gradient metasurfaces to realize various multifunctional capable achieving multiple distinct functions within a single surface...
Abstract Metasurfaces have facilitated the replacement of conventional optical elements with ultrathin and planar photonic structures. Previous designs metasurfaces were limited to small deflection angles ranges angle incidence. Here, we created two types Si-based steer visible light a large angle. These structures exhibit high diffraction efficiencies over broad range We demonstrated working both in transmission reflection modes based on thin film silicon processes that are suitable for...
Three-dimensional (3D) single-particle tracking (SPT) is a key tool for studying dynamic processes in the life sciences. However, conventional optical elements utilizing light fields impose an inherent trade-off between lateral and axial resolution, preventing SPT with high spatiotemporal resolution across extended volume. We overcome typical loss spatial that accompanies light-field-based approaches to obtain 3D information by placing standard microscope coverslip patterned multifunctional,...
By a reusable transfer fabrication technique, we demonstrate high-fidelity of metal nanoparticles, optical nanoantennas, and nanohole arrays directly on functional silk biopolymer. The ability to reproducibly pattern biopolymers with arbitrarily complex plasmonic is importance for variety applications in biosensing, tissue engineering, cell biology, the development novel bio-optoelectronic medical devices.
Doping ease and the ability to readily nanoimprint silk films offer possibility rapidly prototype photonic devices that couple optical functions with embedded material properties. By imprinting fluorescent periodic nanoscale lattices matched emission spectra of doping fluorophores it is possible selectively enhance from film.
Metasurface optical elements, phased arrays constructed from a dense arrangement of nanoscale antennas, are promising candidates for the next generation flat components. Metasurfaces that rely on Pancharatnam-Berry phase facilitate complete and efficient wavefront control. However, their operation typically requires control over polarization state incident light to achieve desired function. Here, we circumvent this inherent sensitivity by multiplexing two metasurfaces were designed same...
There are few materials that broadly used for fabricating optical metasurfaces visible light applications. Gallium phosphide (GaP) is a material that, due to its properties, has the potential become primary choice but difficulties in fabrication, GaP thin films deposited on transparent substrates have never been exploited. In this article we report design, and characterization of three different amorphous obtained through sputtering. Although properties can be further optimized, our results...
By mimicking internally coupled ears directional hearing capability of small animals, we demonstrate subwavelength angle sensing using optical resonators in extremely distance.
Sensing the direction of sounds provides animals clear evolutionary advantage. For large in which distance between ears is larger or comparable to audible sound wavelength, directional hearing simply accomplished by recognizing intensity and time differences wave impinging on two ears. In small (subwavelength) animals, angle sensing seems instead rely coherent coupling soundwaves from Inspired this natural design, here we present a subwavelength photodetection pixel that can measure both...