Harvard College

Massachusetts Institute of Technology

Leland Stanford Junior University

Princeton University

The Mitre Corporation

Element Six Gmbh

Element Six Technologies Limited

Marko Loncar

Mian Zhang

Cheng Wang

Qimin Quan

Mikhail D Lukin

Steven G Johnson

Joanna Aizenberg

Joseph Mardell Kahn

Benjamin Hatton

Ian Burgess

Alejandro W Rodriguez

Nathalie De Leon

Lidiya Mishchenko

Brendan John Shields

Haig Avedis Atikian

Zin Lin

Yinan Zhang

Michael J Burek

Brandon Taylor Buscaino

Marin Soljacic

John Dimitris Joannopoulos

Federico Capasso

Eric Mazur

Hongkun Park

Ronald Lee Walsworth

Matthew Lee Markham

Ruffin E Evans

Pawel Latawiec

Amir Yacoby

Mihir Keshav Bhaskar

Matthew James Turner

Frank Vollmer

Orad Reshef

Alastair Douglas Stacey

Patrick Maletinsky

Philip Hemmer

Jorge Bravo-Abad

Xiangdong Liang

Denis D Sukachev

Mughees Khan

Christian Thieu Nguyen

Parag Deotare

Benedikt Groever

Lingyan He

Linbo Shao

Wooyoung Hong

Amirhassan Shams-Ansari

Yiwen Chu

Birgit Judith Maria Hausmann

Khadijeh Bayat

Thomas M Babinec

Yaowen Hu

Birgit J M Hausmann

Ian B Burgess

Murray W McCutcheon

Edlyn Victoria Levine

Pauli Kehayias

Daniel T Walters

Yang Li

Nicholas Ryan Langellier

Ralf Riedinger

Shota Kita

Philip Alejandro Munoz

Alejandro W Rodriquez

Daryl Vulis

Bartholomeus Machielse

David S Levonian

Alastair Stacey

Ruffin Eley Evans

Optical devices and their fabrication from thin film lithium niobate are provided. In some embodiments, an optical device includes a substrate and an optical waveguide disposed on the substrate. The optical waveguide comprises lithium niobate. The optical waveguide has a central ridge extending laterally along the substrate. A pair of electrodes is disposed on opposite sides of the central ridge of the optical waveguide.

Micro-machined thin film lithium niobate electro-optic devices

The present invention generally relates, in some aspects, to systems and methods for making and using sensors or other devices, such as optical components. One aspect is generally directed to a sensor or other device comprising a nanometer-sized portion. In some embodiments, the sensor can be used to determine various characteristics such as temperature, humidity, an electric field, a magnetic field, an analyte, or the like. For instance, in one embodiment, a portion of a sensor device may be inserted into a cell and used to study the cell, e.g., using optical techniques such as surface plasma resonance. In some embodiments, such sensors or other devices may comprise metal, glass, or other materials, which can be prepared using etching or other techniques.

Systems and methods for making and using sensors, probes, and other devices

Low loss fiber-to-chip interfaces for lithium niobate photonic integrated circuits are provided. An optical circuit includes a waveguide comprising an electro-optical material. The waveguide includes an elevated ridge and a slab underlying the elevated ridge, the elevated ridge and the slab extending along a central axis toward an optical interface. The elevated ridge and the slab each have a plurality of cross-sections along the central axis, each cross-section having a width measured perpendicular to the central axis, wherein the width of elevated ridge is smaller than the width of the slab for every cross-section along the central axis. The elevated ridge includes a tapered portion having a first taper, wherein the cross-section of the elevated portion decreases along the central axis toward the optical interface. The slab includes a tapered portion having a second taper, wherein the cross-section of the slab decreases along the central axis toward the optical interface. The slab extends beyond the elevated ridge along the central axis to the optical interface.

Low loss fiber-to-chip interfaces for lithium niobate photonic integrated circuits

Systems and methods are disclosed for making a quantum network node. A plurality of scoring function F values are calculated for an array of at least two photonic crystal cavity unit cells, each having a lattice constant a and a hole having a length Hx and a width Hy. A value of a, a value of Hx, and a value of Hy are selected for which a scoring function value is at a maximum. A waveguide region and the array of at least two photonic crystal cavity unit cells based on the selected values are formed on a substrate. At least one ion between a first photonic crystal cavity unit cell and a second photonic crystal cavity unit cell are implanted and annealed into a quantum defect. A coplanar microwave waveguide is formed on the substrate in proximity to the array of at least two photonic crystal cavity unit cells.

Nanophotonic quantum memory

A multi-layered lens comprises a plurality of metasurface layers. At least some layers of the plurality of metasurface layers include features that exhibit angular phase controls. The angular phases of the at least some layers cause an angular aberration correction or an angle convergence that focuses light onto a focal point regardless of angles of incidence.

Topology optimized multi-layered meta-optics

Kerr and electro-optic frequency comb generation in integrated lithium niobate devices is provided. In various embodiments, a microring resonator comprising lithium niobate is disposed on a thermal oxide substrate. The microring resonator has inner and outer edges. Electrodes are positioned along the inner and outer edges of the microring resonator. The electrodes are adapted to modulate the refractive index of the microring. A pump laser is optically coupled to the microring resonator. The microring resonator is adapted to emit an electro-optical frequency comb when receiving a pump mode from the pump laser and when the electrodes are driven at a frequency equal to a free-spectral-range of the microring resonator.

Optical frequency comb generation in integrated lithium niobate devices

Devices for determining a state of a magnetic field-generating article are provided. In various embodiments, a device comprises: a single crystal diamond having a plurality of NV centers, the single crystal diamond configured to be disposed adjacent to a magnetic field-generating article, and configured to generate a fluorescent signal in response to being illuminated by a light source; a coherent light source configured to generate a light beam directed at the single crystal diamond; a microwave (MW) radiation source configured to irradiate the single crystal diamond with a MW signal; a magnetic field source configured to apply a bias magnetic field to the single crystal diamond; a photosensor configured to collect the fluorescent signal generated by the single crystal diamond; and a computing node operatively coupled to each of the coherent light source, the MW radiation source, the magnetic field source, and the photosensor.

High-resolution magnetic field fingerprinting of integrated circuit activity with a quantum diamond microscope

An optical structure having enhanced optical properties, the optical structure comprising a bulk homogenous substrate that is surface modified so as to provide the enhanced optical properties. Surface modification of the bulk homogenous substrate can comprise removing portions of the bulk homogenous substrate to provide nanostructure elements at the surface, thereby providing an improved optical structure formed of a homogenous material. Methods for enhancing the optical properties of a bulk homogenous substrate include surface modifying the bulk homogenous substrate to provide an optical structure formed of a homogenous material, the optical structure having enhanced optical properties compared to the unmodified bulk homogenous material.

Wavelength selective optical nanostructures fabricated on the surface of bulk homogenous substrates

Electro-optic devices for classical and quantum microwave photonics are provided. In various embodiments, a device comprises: a waveguide; a first ring resonator; a second ring resonator, the second ring resonator evanescently coupled to the first ring resonator and to the waveguide; a first pair of electrodes, one of the first pair of electrodes disposed within the first ring resonator and the other of the first pair of electrodes disposed without the first ring resonator; a second pair of electrodes, one of the second pair of electrodes disposed within the second ring resonator and the other of the second pair of electrodes disposed without the second ring resonator; a microwave source electrically coupled to the first and second pairs of electrodes; a bias port electrically coupled to the first and second pairs of electrodes and configured to sweep a frequency band.

Integrated electro-optic devices for classical and quantum microwave photonics

Reconfigurable electro-optic frequency shifters are provided. In various embodiments, the optical frequency shifter comprises a continuous optical spectrum medium; a discrete optical spectrum medium optically coupled to the continuous optical spectrum medium; and a tunable element operably coupled to the discrete optical spectrum medium, wherein: the discrete optical spectrum medium has N optical modes (I:{i. . . i}), said optical modes being ordered and equidistant in a frequency domain, wherein N is an integer equal to or greater than 3, each of the optical modes (i&#x2208;I) having a coupling constant &#x3ba;with respect to the continuous optical spectrum medium, wherein at least one of the coupling constants &#x3ba;is different from the other coupling constants, the optical modes (I) having a coupling constant &#x3a9; with respect to one another, wherein the tunable element is configured to control the coupling constant &#x3a9;.

Reconfigurable electro-optic frequency shifters

A system and method for detecting dynamic electromagnetic emission of an integrated circuit (IC) chip is provided. One embodiment of the method, includes exciting nitro vacancy (NV) centers of a diamond slide located in close proximity to the IC chip via use of light, resulting in an NV fluorescence; providing an optical readout of the NV fluorescence, wherein the optical readout provides quantum states of the NV centers, thereby providing a spectra of electromagnetic fields of the IC chip. A determination is then made of at least one of the group comprising clock frequencies of the IC chip, referred to herein as determined clock frequencies, and data bandwidth of the IC chip, referred to herein as determined data bandwidth of the IC chip, from the spectra of electromagnetic fields of the IC chip. A comparison is then performed, comparing at least one of the group comprising determined clock frequencies and determined data bandwidth, to at least one of the group comprising expected clock frequencies of the IC chip and expected data bandwidth of the IC chip, thereby determining if a foreign device or software is located on the IC chip.

Ultrahigh resolution dynamic IC chip activity detection for hardware security

A method for fabrication of free standing mechanical and photonic structures is presented. A resist mask is applied to a bulk substrate. The bulk substrate is attached to a movable platform. The bulk substrate is exposed to an ion stream produced by a reactive ion beam etching source. The platform is moved relative to the ion stream to facilitate undercutting a portion of the bulk substrate otherwise shielded by the mask.

System and method for wafer-scale fabrication of free standing mechanical and photonic structures by ion beam etching

Measuring a sample includes providing a magnetic field at the sample using an electromagnetic field resonator. The electromagnetic field resonator includes two or more resonant structures at least partially contained within dielectric material of a substrate, at least a first resonant structure configured to provide the magnetic field at the sample positioned in proximity to the first resonant structure. The sample is characterized by an electron spin resonance frequency. A size of an inner area of the first resonant structure and a number of resonant structures included in the electromagnetic field resonator at least partially determine a range of an operating resonance frequency of the electromagnetic field resonator that includes the electron spin resonance frequency. Measuring the sample also includes receiving an output optical signal from the sample generated based at least in part on a magnetic field generated by the electromagnetic field resonator.

Optically detected magnetic resonance imaging with an electromagnetic field resonator

Growing community of inventors

Cambridge, MA, United States of America

Marko Loncar