Sharon M. Weiss, Judson D. Ryckman, Christopher Kang, Marco Liscidini, John E. Sipe
Diffraction gratings comprising a substrate with protrusions extending therefrom. In one embodiment, the protrusions are made of a porous material, for example porous silicon with a porosity of greater than about 10%. The diffraction grating may also be constructed from multiple layers of porous material, for example porous silicon with a porosity of greater than about 10%, with protrusion of attached thereto. In some embodiments the protrusions may be made from photoresist or another polymeric material. The gratings are the basis for sensitive sensors. In some embodiments, the sensors are functionalized with selective binding species, to produce sensors that specifically bind to target molecules, for example chemical or biological species of interest.
U.S. Patent 8,349,617
Optical sensor comprising diffraction gratings with functionalized pores and method of detecting analytes using the sensor
Sharon M. Weiss, Judson D. Ryckman, Marco Liscidini, John E. Sipe
Provided are methods of patterning porous materials on the micro- and nanometer scale using a direct imprinting technique. The present methods of direct imprinting of porous substrates (“DIPS”), can utilize reusable stamps that may be directly applied to an underlying porous material to selectively, mechanically deform and/or crush particular regions of the porous material, creating a desired structure. The process can be performed in a matter of seconds, at room temperature or higher temperatures, and eliminates the requirement for intermediate masking materials and etching chemistries.
U.S. Patent 9,352,543
Direct imprinting of porous substrates
Marco Liscidini, John Sipe
The invention features methods and diffraction-based devices for the detection of specific analytes. The devices of the invention contain a periodic dielectric multilayer, which allows for the propagation of Bloch surface waves (BSWs) at the surface of the multilayer, thereby increasing the sensitivity of the device.
U.S. Patent 9,658,221
Methods and devices for detection of analytes using Bloch surface wave-enhanced diffraction-based biosensors
Marco Liscidini, Matteo Menotti, Blair Morrison, John Sipe, Kang Tan, Zachary Vernon
A photonic device comprises a plurality of resonators and a plurality of optical channels. Each resonator from the plurality of resonators has a set of resonance frequencies independently selected from a set of resonance frequencies of each remaining resonator from the plurality of resonators. Each resonator from the plurality of resonators lacks substantially any linear coupling between each remaining resonator from the plurality of resonators. The plurality of resonators defines a spatial overlap region between at least two resonators from the plurality of resonators such that nonlinear optical processes are substantially optimized during operation. A plurality of optical channels is operatively coupled to the plurality of resonators. The plurality of optical channels is configured to receive light from the plurality resonators and configured to send light into the plurality of resonators.
U.S. Patent 11,003,046