Dr. Charles Santori Profile

Dr. Charles Santori

Researcher at Hewlett Packard Enterprise

SPIE Involvement:

Author | Editor

Publications (22)

Proceedings Article | 14 March 2018 Presentation

How coherent Ising machines push circuit design in silicon photonics to its limits (Conference Presentation)

Thomas Van Vaerenbergh, Ranojoy Bose, David Kielpinski, Gabriel Mendoza, Jason Pelc, Nikolas Tezak, Charles Santori, Raymond Beausoleil

Proceedings Volume 10537, 105370D (2018) https://doi.org/10.1117/12.2288586

KEYWORDS: Silicon photonics, Amorphous silicon, Optical computing, Multiplexing, Gallium arsenide, Waveguides, Photonic crystals, Nonlinear optics, Photonic microstructures, Electronic design automation

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Proceedings Article | 27 July 2016 Presentation

Design automation for integrated nonlinear logic circuits (Conference Presentation)

Thomas Van Vaerenbergh, Jason Pelc, Charles Santori, Ranojoy Bose, Dave Kielpinski, Raymond Beausoleil

Proceedings Volume 9891, 989118 (2016) https://doi.org/10.1117/12.2227830

KEYWORDS: Photonic integrated circuits, Logic, Integrated circuit design, Electronic design automation, Integrated circuits, Microrings, Information technology, Electronic circuits, Transistors, Data processing

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A key enabler of the IT revolution of the late 20th century was the development of electronic design automation (EDA) tools allowing engineers to manage the complexity of electronic circuits with transistor counts now reaching into the billions. Recently, we have been developing large-scale nonlinear photonic integrated logic circuits for next generation all-optical information processing. At this time a sufficiently powerful EDA-style software tool chain to design this type of complex circuits does not yet exist. Here we describe a hierarchical approach to automating the design and validation of photonic integrated circuits, which can scale to several orders of magnitude higher complexity than the state of the art. Most photonic integrated circuits developed today consist of a small number of components, and only limited hierarchy. For example, a simple photonic transceiver may contain on the order of 10 building-block components, consisting of grating couplers for photonic I/O, modulators, and signal splitters/combiners. Because this is relatively easy to lay out by hand (or simple script) existing photonic design tools have relatively little automation in comparison to electronics tools. But demonstrating all-optical logic will require significantly more complex photonic circuits containing up to 1,000 components, hence becoming infeasible to design manually. Our design framework is based off Python-based software from Luceda Photonics which provides an environment to describe components, simulate their behavior, and export design files (GDS) to foundries for fabrication. At a fundamental level, a photonic component is described as a parametric cell (PCell) similarly to electronics design. PCells are described by geometric characteristics of their layout. A critical part of the design framework is the implementation of PCells as Python objects. PCell objects can then use inheritance to simplify design, and hierarchical designs can be made by creating composite PCells (modules) which consist of primitive building-block PCells (components). To automatically produce layouts, we built on a construct provided by Luceda called a PlaceAndAutoRoute cell: we create a module component by supplying a list of child cells, and a list of the desired connections between the cells (e.g. the out0 port of a microring is connected to a grating coupler). This functionality allowed us to write algorithms to automatically lay out the components: for instance, by laying out the first component and walking through the list of connections to check to see if the next component is already placed or not. The placement and orientation of the new component is determined by minimizing the length of a connecting waveguide. Our photonic circuits also utilize electrical signals to tune the photonic elements (setting propagation phases or microring resonant frequencies via thermo-optical tuning): the algorithm also routes the contacts for the metal heaters to contact pads at the edge of the circuit being designed where it can be contacted by electrical probes. We are currently validating a test run fabricated over the summer, and will use detailed characterization results to prepare our final design cycle in which we aim to demonstrate complex operational logic circuits containing ~50-100 nonlinear resonators.

Proceedings Article | 29 March 2013 Paper

Microring resonator-based diamond optothermal switch: a building block for a quantum computing network

Zhihong Huang, Andrei Faraon, Charles Santori, Victor Acosta, Raymond Beausoleil

Proceedings Volume 8635, 86350E (2013) https://doi.org/10.1117/12.2002631

KEYWORDS: Diamond, Waveguides, Silicon, Switches, Silica, Microrings, Switching, Resonators, Etching, Quantum computing

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Proceedings Article | 23 February 2012 Paper

Towards integrated optical quantum networks in diamond

Andrei Faraon, Charles Santori, Zhihong Huang, Victor Acosta, Paul Barclay, Kai-Mei Fu, Raymond Beausoleil

Proceedings Volume 8272, 82720Y (2012) https://doi.org/10.1117/12.906260

KEYWORDS: Diamond, Silicon, Photonic crystals, Resonators, Waveguides, Silica, Etching, Crystals, Microrings, Quantum networks

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Proceedings Article | 12 February 2011 Paper

Modification of the spontaneous emission rate of nitrogen-vacancy centers in diamond by coupling to plasmons

Andrei Faraon, Young Chul Jun, Paul Barclay, Kai-Mei Fu, Charles Santori, Mark Brongersma, Raymond Beausoleil

Proceedings Volume 7948, 794814 (2011) https://doi.org/10.1117/12.874221

KEYWORDS: Diamond, Plasmons, Silver, Waveguides, Metals, Phonons, Crystals, Quantum computing, Etching, Quantum optics

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Proceedings Article | 12 February 2011 Paper

Properties of implanted and CVD incorporated nitrogen-vacancy centers: preferential charge state and preferential orientation

K.-M. Fu, C. Santori, P. Barclay, A. Faraon, D. Twitchen, M. Markham, R. Beausoleil

Proceedings Volume 7948, 79480S (2011) https://doi.org/10.1117/12.876169

KEYWORDS: Diamond, Polarization, Oxygen, Chemical vapor deposition, Annealing, Hydrogen, Confocal microscopy, Quantum information, Quantum information processing, Nitrogen

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Proceedings Article | 17 January 2011 Paper

Devices and architectures for large-scale integrated silicon photonics circuits

Raymond Beausoleil, Andrei Faraon, David Fattal, Marco Fiorentino, Zhen Peng, Charles Santori

Proceedings Volume 7942, 794204 (2011) https://doi.org/10.1117/12.876807

KEYWORDS: Dense wavelength division multiplexing, Resonators, Microrings, Waveguides, Silicon, Silicon photonics, Modulators, Network architectures, Semiconducting wafers, Integrated circuit design

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Proceedings Article | 8 February 2010 Paper

Observation of the dynamic Jahn-Teller effect in the excited states of nitrogen-vacancy centers in diamond

K.-M. Fu, C. Santori, P. Barclay, L. Rogers, N. Manson, R. Beausoleil

Proceedings Volume 7611, 761108 (2010) https://doi.org/10.1117/12.843827

KEYWORDS: Polarization, Phonons, Wave plates, Diamond, Photons, Temperature metrology, Visibility, Polarizers, Spectroscopy, Raman spectroscopy

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Proceedings Article | 3 February 2009 Paper

Structures in diamond for optical manipulation of nitrogen-vacancy centers

C. Santori, K.-M. C. Fu, P. E. Barclay, R. G. Beausoleil

Proceedings Volume 7225, 72250L (2009) https://doi.org/10.1117/12.816031

KEYWORDS: Diamond, Waveguides, Absorption, Annealing, Ion implantation, Quantum communications, Nitrogen, Phonons, Optical manipulation, Etching

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Proceedings Article | 3 February 2009 Paper

Nanophotonic devices in single crystal diamond

Paul Barclay, Charles Santori, Kai-Mei Fu, Raymond Beausoleil

Proceedings Volume 7225, 722508 (2009) https://doi.org/10.1117/12.814051

KEYWORDS: Diamond, Waveguides, Crystals, Nanophotonics, Waveguide modes, Nitrogen, Dispersion, Quantum computing, Quantum dots, Optical microcavities

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Proceedings Article | 3 February 2009 Paper

Photonic structures for QIP in diamond

K.-M. C. Fu, C. Santori, P. E. Barclay, N. Meyer, A. M. Holm, I. Aharonovich, S. Prawer, R. G. Beausoleil

Proceedings Volume 7225, 72250E (2009) https://doi.org/10.1117/12.813788

KEYWORDS: Waveguides, Diamond, Etching, Quantum computing, Semiconducting wafers, Raman spectroscopy, Quantum optics, Phonons, Dry etching, Objectives

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Proceedings Article | 29 January 2008 Paper

Quantum information processing with diamond nitrogen-vacancy centers coupled to microcavities

Kai-Mei Fu, Charles Santori, Sean Spillane, Raymond Beausoleil

Proceedings Volume 6903, 69030M (2008) https://doi.org/10.1117/12.772322

KEYWORDS: Diamond, Optical microcavities, Nanoparticles, Luminescence, Particles, Quantum information processing, Silica, Diffusion, Quantum computing, Terahertz radiation

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Proceedings Article | 26 January 2008 Paper

Solid-state devices for single-photon generation

C. Santori, K.-M. Fu, D. Fattal, R. Beausoleil

Proceedings Volume 6906, 69060M (2008) https://doi.org/10.1117/12.772273

KEYWORDS: Solid state electronics, Diamond, Quantum communications, Quantum information, Optical microcavities, Luminescence, Chemical species, Phonons, Coherence (optics), Quantum dots

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Proceedings Article | 6 March 2007 Paper

Optical manipulation of single spins in diamond

Charles Santori, Philippe Tamarat, Philipp Neumann, Jörg Wrachtrup, David Fattal, Raymond Beausoleil, James Rabeau, Paolo Olivero, Andrew Greentree, Steven Prawer, Fedor Jelezko, Philip Hemmer

Proceedings Volume 6482, 648207 (2007) https://doi.org/10.1117/12.716391

KEYWORDS: Diamond, Luminescence, Ferroelectric materials, Modulators, Modulation, Optical microcavities, Quantum information processing, Optical manipulation, Fluorescence spectroscopy, Quantum communications

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Proceedings Article | 19 October 2006 Paper

Metal organic chemical vapor deposition of indium phosphide nanoneedles on non-single crystal silicon surfaces

Nobuhiko Kobayashi, Shih-Yuan Wang, Charles Santori, R. Stanley Williams

Proceedings Volume 6370, 63700S (2006) https://doi.org/10.1117/12.692672

KEYWORDS: Crystals, Silicon, Nanostructures, Microcrystalline materials, Semiconductors, Indium, Amorphous silicon, Metalorganic chemical vapor deposition, Gold, Nanowires

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Proceedings Article | 2 October 2006 Open Access

Applications of nanophotonics to classical and quantum information technology

R. Beausoleil, D. Fattal, M. Fiorentino, C. Santori, G. Snider, S. Spillane, R. Williams, W. Munro, T. Spiller, J. Rabeau, S. Prawer, F. Jelezko, P. Tamarat, J. Wrachtrup, P. Hemmer

Proceedings Volume 6393, 639301 (2006) https://doi.org/10.1117/12.692241

KEYWORDS: Photons, Quantum information, Diamond, Semiconductors, Transistors, Information technology, Integrated optics, Quantum communications, Photonics, Homodyne detection

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Proceedings Article | 29 August 2006 Paper

Quantum information primitives using linear optics

Marco Fiorentino, David Fattal, Charles Santori, Sean Spillane, William Munro, Raymond Beausoleil

Proceedings Volume 6305, 63050E (2006) https://doi.org/10.1117/12.681628

KEYWORDS: Photons, Quantum communications, Polarization, Logic, Quantum information, Information security, Quantum mechanics, Single photon, Matrices, Interferometers

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Proceedings Article | 25 February 2006 Paper

Toward quantum information processing using EIT in diamond

Charles Santori, David Fattal, Sean Spillane, Marco Fiorentino, R. Beausoleil, W. Munro, T. Spiller, Andrew Greentree, Paolo Olivero, Martin Draganski, James Rabeau, Patrick Reichart, Brant Gibson, Sergey Rubanov, Shane Huntington, David Jamieson, Steven Prawer

Proceedings Volume 6130, 613005 (2006) https://doi.org/10.1117/12.660189

KEYWORDS: Luminescence, Phase shifts, Diamond, Homodyne detection, Polarization, Quantum communications, Photons, Quantum information processing, Nonlinear optics, Quantum computing

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Proceedings Article | 28 April 2005 Paper

Cavity-enhanced single photons from a quantum dot

Jelena Vuckovic, David Fattal, Dirk Englund, Edo Waks, Charles Santori, Glenn Solomon, Yoshihisa Yamamoto

Proceedings Volume 5722, (2005) https://doi.org/10.1117/12.601822

KEYWORDS: Photons, Quantum dots, Single photon, Gallium arsenide, Optical microcavities, Luminescence, Quantum information, Semiconductors, Quantum efficiency, Photonic crystals

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Proceedings Article | 3 February 2004 Paper

Quantum cryptography with a single photon source

Edo Waks, Kyo Inoue, Charles Santori, David Fattal, Jelena Vuckovic, Glenn Solomon, Yoshihisa Yamamoto

Proceedings Volume 5161, (2004) https://doi.org/10.1117/12.512319

KEYWORDS: Quantum dots, Quantum cryptography, Single photon, Quantum communications, Gallium arsenide, Indium arsenide, Polarization, Spectroscopy, Sapphire lasers, Sensors

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Proceedings Article | 8 December 2003 Paper

High-efficiency triggered photons using single-cavity mode coupling of single quantum dot emission

Glenn Solomon, Matthew Pelton, Charles Santori, David Fattal, Jelena Vuckovic, Edo Waks, Kyo Inoue, Yoshihisa Yamamoto

Proceedings Volume 5248, (2003) https://doi.org/10.1117/12.512991

KEYWORDS: Photons, Quantum dots, Optical microcavities, Excitons, Gallium arsenide, Single photon, Semiconductors, Indium arsenide, Streak cameras, Quantum efficiency

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Proceedings Article | 25 June 2003 Paper

Indistinguishable single photons from a single quantum-dot microcavity

Charles Santori, David Fattal, Jelena Vuckovic, Glenn Solomon, Yoshihisa Yamamoto

Proceedings Volume 4969, (2003) https://doi.org/10.1117/12.499286

KEYWORDS: Quantum dots, Photons, Picosecond phenomena, Optical microcavities, Polarization, Single photon, Interferometers, Beam splitters, Gallium arsenide, Semiconductors

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