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    Methods and Apparatus for Nanofabrication Using a Pliable Membrane Mask
    12.
    发明申请
    Methods and Apparatus for Nanofabrication Using a Pliable Membrane Mask 有权
    使用柔韧膜掩模进行纳米加工的方法和装置

    公开(公告)号：US20150378261A1

    公开(公告)日：2015-12-31

    申请号：US14537304

    申请日：2014-11-10

    Applicant: Dirk Robert ENGLUND ,  Igal BAYN ,  Luozhou LI

    Inventor： Dirk Robert ENGLUND ,  Igal BAYN ,  Luozhou LI

    IPC: G03F7/20

    CPC classification number: G03F1/62 ,  C01B32/28 ,  C09K13/00 ,  C23C14/58 ,  C23C16/483 ,  C23C16/486 ,  C23C16/487 ,  C23C16/50 ,  H01J37/3171 ,  H01J2237/31706

    Abstract: Apparatus for nanofabrication on an unconventional substrate including a patterned pliable membrane mechanically coupled to a membrane support structure, a substrate support structure to receive a substrate for processing, and an actuator to adjust the distance between the pliable membrane and the substrate. Nanofabrication on conventional and unconventional substrates can be achieved by transferring a pre-formed patterned pliable membrane onto the substrate using a transfer probe or non-stick sheet, followed by irradiating the substrate through the patterned pliable membrane so as to transfer the pattern on the pliable membrane into or out of the substrate. The apparatus and methods allow fabrication of diamond photonic crystals, fiber-integrated photonic devices and Nitrogen Vacancy (NV) centers in diamonds.

    Abstract translation: 用于在非常规基材上纳米加工的装置，包括机械耦合到膜支撑结构的图案化的柔性膜，用于接收用于处理的基底的基底支撑结构以及调节柔性膜与基底之间的距离的致动器。 通过使用转移探针或不粘片将预先形成的图案化的柔韧膜转移到基底上，然后通过图案化的柔性膜照射基底，以便将图案转移到柔韧的方式上，可以实现常规和非常规基底上的纳米制造 膜进入或离开基底。 该装置和方法允许在钻石中制造金刚石光子晶体，光纤集成光子器件和氮空位（NV）中心。

    Self-Aligning Photonic Interconnections for Photonic Integrated Circuits
    13.
    发明申请
    Self-Aligning Photonic Interconnections for Photonic Integrated Circuits 有权

    公开(公告)号：US20220146749A1

    公开(公告)日：2022-05-12

    申请号：US17470803

    申请日：2021-09-09

    Applicant: Saumil Bandyopadhyay ,  Dirk Robert ENGLUND

    Inventor： Saumil Bandyopadhyay ,  Dirk Robert ENGLUND

    IPC: G02B6/125

    Abstract: The next-generation of optoelectronic systems will require efficient optical signal transfer between many discrete photonic components integrated onto a single substrate. While modern assembly processes can easily integrate thousands of electrical components onto a single board, photonic assembly is far more challenging due to the wavelength-scale alignment tolerances required. Here we address this problem by introducing a self-aligning photonic coupler insensitive to x, y, z displacement and angular misalignment. The self-aligning coupler provides a translationally invariant evanescent interaction between waveguides by intersecting them at an angle, which enables a lateral and angular alignment tolerance fundamentally larger than non-evanescent approaches such as edge coupling. This technology can function as a universal photonic connector interfacing photonic integrated circuits and microchiplets across different platforms. For example, it can be used in a self-aligning photonic circuit board that can be assembled more easily, with larger misalignment tolerances, than other complex optoelectronic systems.

    Freely Scalable Quantum Computing using a 2D Atomic Emitter Array with Massively Parallel Optical Interconnects
    15.
    发明申请
    Freely Scalable Quantum Computing using a 2D Atomic Emitter Array with Massively Parallel Optical Interconnects 有权

    公开(公告)号：US20210117845A1

    公开(公告)日：2021-04-22

    申请号：US16994844

    申请日：2020-08-17

    Applicant: Hyeongrak CHOI ,  Dirk Robert ENGLUND

    Inventor： Hyeongrak CHOI ,  Dirk Robert ENGLUND

    IPC: G06N10/00 ,  B82Y20/00

    Abstract: Quantum information processing involves entangling large numbers of qubits, which can be realized as defect centers in a solid-state host. The qubits can be implemented as individual unit cells, each with its own control electronics, that are arrayed in a cryostat. Free-space control and pump beams address the qubit unit cells through a cryostat window. The qubit unit cells emit light in response to these control and pump beams and microwave pulses applied by the control electronics. The emitted light propagates through free space to a mode mixer, which interferes the optical modes from adjacent qubit unit cells for heralded Bell measurements. The qubit unit cells are small (e.g., 10 μm square), so they can be tiled in arrays of up to millions, addressed by free-space optics with micron-scale spot sizes. The processing overhead for this architecture remains relatively constant, even with large numbers of qubits, enabling scalable large-scale quantum information processing.

    Quantum Optical Neural Networks
    16.
    发明申请
    Quantum Optical Neural Networks 审中-公开

    公开(公告)号：US20200372334A1

    公开(公告)日：2020-11-26

    申请号：US16826364

    申请日：2020-03-23

    Applicant: Jacques Johannes CAROLAN ,  Gregory R. STEINBRECHER ,  Dirk Robert ENGLUND

    Inventor： Jacques Johannes CAROLAN ,  Gregory R. STEINBRECHER ,  Dirk Robert ENGLUND

    IPC: G06N3/067 ,  G06N10/00 ,  G06N3/04 ,  G02F1/35

    Abstract: Many of the features of neural networks for machine learning can naturally be mapped into the quantum optical domain by introducing the quantum optical neural network (QONN). A QONN can be performed to perform a range of quantum information processing tasks, including newly developed protocols for quantum optical state compression, reinforcement learning, black-box quantum simulation and one way quantum repeaters. A QONN can generalize from only a small set of training data onto previously unseen inputs. Simulations indicate that QONNs are a powerful design tool for quantum optical systems and, leveraging advances in integrated quantum photonics, a promising architecture for next generation quantum processors.

    Self-Configuration and Error Correction in Linear Photonic Circuits
    19.
    发明申请
    Self-Configuration and Error Correction in Linear Photonic Circuits 有权

    公开(公告)号：US20220397383A1

    公开(公告)日：2022-12-15

    申请号：US17711640

    申请日：2022-04-01

    Applicant: Ryan HAMERLY ,  Saumil Bandyopadhyay ,  Dirk Robert ENGLUND

    Inventor： Ryan HAMERLY ,  Saumil Bandyopadhyay ,  Dirk Robert ENGLUND

    IPC: G01B9/02055 ,  G01B9/02015

    Abstract: Component errors prevent linear photonic circuits from being scaled to large sizes. These errors can be compensated by programming the components in an order corresponding to nulling operations on a target matrix X through Givens rotations X→T†X, X→XT†. Nulling is implemented on hardware through measurements with feedback, in a way that builds up the target matrix even in the presence of hardware errors. This programming works with unknown errors and without internal sources or detectors in the circuit. Modifying the photonic circuit architecture can reduce the effect of errors still further, in some cases even rendering the hardware asymptotically perfect in the large-size limit. These modifications include adding a third directional coupler or crossing after each Mach-Zehnder interferometer in the circuit and a photonic implementation of the generalized FFT fractal. The configured photonic circuit can be used for machine learning, quantum photonics, prototyping, optical switching/multicast networks, microwave photonics, or signal processing.

    Optically Heralded Entanglement of Superconducting Systems in Quantum Networks
    20.
    发明申请
    Optically Heralded Entanglement of Superconducting Systems in Quantum Networks 有权

    公开(公告)号：US20220215281A1

    公开(公告)日：2022-07-07

    申请号：US17496833

    申请日：2021-10-08

    Applicant: Dirk Robert ENGLUND ,  Stefan Ivanov Krastanov ,  Hamza Raniwala

    Inventor： Dirk Robert ENGLUND ,  Stefan Ivanov Krastanov ,  Hamza Raniwala

    IPC: G06N10/40

    Abstract: The typical approach to transfer quantum information between two superconducting quantum computers is to transduce the quantum information into the optical regime at the first superconducting quantum computer, transmit the quantum information in the optical regime to the second superconducting quantum computer, and then transduce the quantum information back into the microwave regime at the second superconducting quantum computer. However, direct microwave-to-optical and optical-to-microwave transduction have low fidelity due to the low microwave-optical coupling rates and added noise. These problems compound in consecutive microwave-to-optical and optical-to-microwave transduction steps. We break this rate-fidelity trade-off by heralding end-to-end entanglement with one detected photon and teleportation. In contrast to cascaded direct transduction, our technology absorbs the low optical-microwave coupling efficiency into the entanglement heralding step. Our approach unifies and simplifies entanglement generation between superconducting devices and other physical modalities in quantum networks.

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