Paul Barclay

Education

• 2007 - Ph.D. in Applied Physics, California Institute of Technology
• 2003 - M.Sc. in Applied Physics, California Institute of Technology
• 2001 - B.A.Sc. in Engineering Physics, University of British Columbia

PhD Thesis: "Fiber-coupled nanophotonic devices for nonlinear  optics and cavity QED"

Research Interests

Most of my current research efforts are focused on the study of sub-wavelength photonic structures optically coupled to atom-like solid state quantum emitters. I am particularly interested in the nitrogen-vacancy color center found in diamond, which displays fantastic electronic and nuclear spin coherences which can be controlled and read-out optically.  The goal of this work is to realize chip-based devices which are useful for quantum information processing and computing.

Generally, I am interested in experimental and theoretical aspects of quantum optics and nanophotonics, atomic physics, low-dimensional condensed matter systems, and environmental sensing using ultra-compact devices.

At HP labs I work with a small team of physicists in a group run by Ray Beausoleil within Stan Williams' Information and Quantum Systems Lab (IQSL).  Our projects are funded by HP and external funding agencies.  Prior to joining HP I completed my PhD at Caltech, where I worked with Oskar Painter.  I also collaborated with students in Hideo Mabuchi's group during this time.  My undergraduate education was in Engineering Physics at UBC.

Publications

K.-M. C. Fu, C. Santori, P. E. Barclay, L. J. Rogers, N. B. Manson, R. G. Beausoleil, Observation of the dynamic Jahn-Teller effect in the excited state of nitrogen-vacancy centers in diamond, submitted, 2009, arXiv:0910.0494 [quant-ph]

P. E. Barclay, K. M. Fu, C. Santori, R. G. Beausoleil, Chip-based microcavities coupled to NV centers in single crystal diamond, to appear in Applied Physics Letters, 2009, arxiv:09082148 [quant-ph]

C. Santori, D. Fattal, K.-M. C. Fu, P. E. Barclay, R. G. Beausoleil, On the indistinghuishability of Raman photon, submitted, 2009. arxiv:0907.2482 [quant-ph]

V. M. Acosta, E. Bauch, M. P. Ledbetter, C. Santori, K.-M. C. Fu, P. E. Barclay, R. G. Beausoleil, H. Linget, J. F. Roch, F. Treussart, S. Chemerisov, W. Gawlik, D. Budker, H  Diamonds with a high density of nitrogen-vacancy centers for magnetometry applications, Phys. Rev. B v80(11) 115202, Sep. 9, 2009

P. E. Barclay, K. M. Fu, C. Santori, R. G. Beausoleil, Hybrid photonic crystal cavity and waveguide for coupling to diamond NV-centers, Optics Express, v17(12) 9588, May 22, 2009.

P. E. Barclay, O. Painter, C. Santori, K. M. Fu, R. G. Beausoleil, Coherent interference effects in a nano-assembled diamond NV-center cavity-QED system, Optics Express v17(10) 8081, Apr. 29, 2009.

C. Santori, P. E. Barclay, K. M. Fu, R. G. Beausoleil, Vertical distribution of nitrogen-vacancy centers in diamond formed by ion implantation and annealing, Phys. Rev. B v79 (12) 125313, Mar. 16, 2009

K.-M.C Fu, C. Santori, P. E. Barclay, R. G. Beausoleil, Coupling of nitrogen-vacancy centers in diamond to a GaP waveguide, Appl. Phys. Lett. v93 (23), 234107, Dec. 12, 2008  arXiv:0811.0328v1 [quant-ph]

P. E. Barclay, K. Srinivasan, O. Painter, B. Lev, H. Mabuchi, Integration of fiber coupled high-Q SiNx microdisks with atom chips, App. Phys. Lett., v89 (13), art. no. 131108, Sep. 27, 2006  (Cover)

K. Srinivasan, P. E. Barclay, M. Borselli, and O. J. Painter,  An optical-fiber-based probe for photonic crystal microcavities, IEEE Selected Areas in Communications v23, pp 1321- 1329, July 5, 2005

K. Srinivasan, M. Borselli, T. J. Johnson, P. E. Barclay, O. Painter, Andreas Stintz and Sanjay Krishna, Optical loss and lasing characteristics of high-quality-factor AlGaAs microdisk resonators with embedded quantum dots, App. Phys. Lett., v86, art. no 151106, April 6, 2005

K. Srinivasan, P.E. Barclay, and O. Painter, Photonic crystal microcavities for chip-based cavity QED, Phys. Stat. Sol. (b), v242(6), pp. 1187-1191, March 24, 2005

P.E. Barclay, K. Srinivasan, and O. Painter, Nonlinear response of silicon photonic crystal micresonators excited via an integrated waveguide and fiber taper, Optics Express, Vol. 13, No. 3, pp. 801-820, Feb. 7, 2005

S.A. Maier, M.D. Friedman, P.E. Barclay, and O. Painter, Experimental demonstration of fiber-accessible metal nanoparticle plasmon waveguides for planar energy guiding and sensing, Appl. Phys. Lett. v86(7), 071103, Feb. 14, 2005

M. Borselli, K. Srinivasan, P.E. Barclay, and O. Painter, Rayleigh scattering, mode coupling, and optical loss in silicon microdisks, App. Phys. Lett., v85(17), pp. 3693-3695, Oct. 25, 2004

K. Srinivasan, P.E. Barclay, M. Borselli, O. Painter, Optical-fiber-based measurement of an ultrasmall volume high-Q photonic crystal microcavity, Phys. Rev. B, Rapid Communications, Vol. 70, 081306(R) Aug. 25, 2004

B. Lev, K. Srinivasan, P.E. Barclay, O. Painter, and H. Mabuchi, Feasibility of detecting single atoms using photonic bandgap cavities, Nanotechnology, Vol 15, S556-S561 2004

P.E. Barclay, K. Srinivasan, M. Borselli, O. Painter, Probing the dispersive and spatial properties of planar photonic crystal waveguide modes via highly efficient coupling from optical fiber tapers, App. Phys. Lett., v85(1), pp. 4-6, Jul. 5, 2004

S.A. Maier, P.E. Barclay, T.J. Johnson, M.D. Friedman, and O. Painter, A low-loss fiber accessible plasmon photonic crystal waveguide for planar energy guiding and sensing, App. Phys. Lett., v84(20), pp. 3990-3992, May 17, 2004

K. Srinivasan, P.E. Barclay, O. Painter, J. Chen, A.Y. Cho, Fabrication of high quality factor photonic crystal microcavities in InAsP/InGaAsP membranes, Journal of Vacuum Science and Technology B, Vol. 22, No. 3, pp. 875-879, May, 2004

K. Srinivasan, P.E. Barclay, O. Painter, Fabrication-tolerant high quality factor photonic crystal microcavities, Optics Express, Vol. 12, No. 7, pp. 1458-1463, Apr. 5, 2004

P.E. Barclay, K. Srinivasan, M. Borselli, O. Painter, Efficient input and output fiber coupling to a photonic crystal waveguide, Optics Letters, Vol. 29, No. 7, pp. 697-699, Apr. 1, 2004

P.E. Barclay, K. Srinivasan, O. Painter, Design of photonic crystal waveguides for evanescent coupling to optical fiber tapers and for integration with high-Q cavities, Journal of the Optical Society of America B-Optical Physics, v20(11), pp. 2274-2284, Nov. 2003

K. Srinivasan, P. E. Barclay, O. Painter, J. Chen, A. Y. Cho, and C. Gmachl, Experimental demonstration of a high quality factor photonic crystal microcavity, Appl. Phys. Lett. v83, 1915, 2003

P.E. Barclay, K. Srinivasan, M. Borselli, O. Painter, Experimental demonstration of evanescent coupling from optical fiber tapers to photonic crystal waveguides, Electronics Letters, v39(11), pp. 842-844, May 29, 2003

O. Painter, K. Srinivasan, P.E. Barclay, A Wannier-like Equation for Localized Resonant Cavity Modes of Locally Perturbed Photonic Crystals, Phys. Rev. B, v68, art. no. 035214, Jul. 2003

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Last modified: Thursday September 14, 2008 by Paul Barclay (paul.barclay@hp.com)