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Yanhua Shih

Professor

PhD., University of Maryland at College Park, 1987

Quantum Optics Group Home Page
UMBC Physics Home Page

Contact Information
Room 310, Physics Bldg.
Department of Physics
Univ. Maryland Baltimore County
1000 Hilltop Circle
Baltimore, MD 21250
Phone: (410) 455-2558
Email: shih@umbc.edu

Research Interests

Foundations of quantum mechanics: measurement theory, the uncertainty principle, and in particular, the understanding of the nature of photon. Our experimental and theoretical research investigates the quantum mechanical non-local correlations between entangled two-photon and multi-photon systems. These entangled quantum states are prepared by modern optical methods, lasers and nonlinear crystals. Our recent experimental studies have demonstrated the existence of strong non-local quantum correlations in spin variables and space time variables for two-photon entangled states. These experimental results are helpful for understanding of the nature of quantum world.

Experimental investigation of general relativistic space-time and gravity theory. We are investigating experimentally the second order timing effect on the rotating earth by using modern optical methods. This has applications, for example, in the high sensitivity laser gyro. Experimental investigation is ongoing to study suitable nonlinear crystals for high reflectivity, high stability phase conjugators.

Applied nonlinear optics and laser physics. The above fundamental physics research has great potential applications. For example, the intrinsic quantum nature of the entangled multi-photon state has been considered for future optical communications and optical image transfer. Experimental and theoretical studies of two dimensional graphic optical image transfer by using our entangled two-photon source are being carried out in our laboratory. An absolute quantum efficiency calibration technique is under development in cooperation with NIST.

Publications



Published Book Chapters::

Quantum Imaging [paper in PDF format],
 in Special Issue of Laser Physics, (2005).

Quantum Entanglement and the Uncertainty Relations,
 in Fortschritte der Physik, Vol. 52, No. 11-12 (2004).

Beyond the Heisenberg Uncertainty, [paper in PDF format]
 in Special Issue of Journal of Modern Optics, (2004).

Entangled Photons, [paper in PDF format]
 in IEEE Journal of Selected Topics in Quantum Electronics, Vol. 9, No. 6, IEEE, (2003).

Entangled Two-photon Source,
 in Reports on Progress in Physics, Vol. 66, No. 6, Institute of Physics Publishing, (2003).

Quantum Imaging, Quantum Lithography and the Uncertainty Principle,
 in Special Issue of European Physics Journal D (2003).

Quantum Imaging, Quantum Lithography and the Uncertainty Principle,
 in Special Issue of Journal of Modern Optics, Vol. 49, 2275 (2002).

Quantum Entanglement and Quantum Teleportation, [paper in PDF format]
 in Quantum Theory Centenary, Annalen der Physik, Vol. 10, ed. C. Thosmen, Wiley-VCH Publisher, 2000.

Quantum Entanglement: from Popper's Experiment to Quantum Eraser, [paper in PDF format]
 in Festschrift in Hornor of Marlan O. Scully, Optics Communications, Vol. 179, ed. W.P. Schleich, North-Holland Publisher, 2000.

Two-Photon 'Ghost' Image and Interference-Diffraction,
 in Experimental Metaphysics, ed., R.S. Cohen and M. Horne, Kluwer Academic Publishers, Lancaster, 1997.

Two-Photon Entanglement and Quantum Reality, [paper in PDF format]
 in Advances in Atomic, Molecular, and Optical Physics, ed., B. Bederson and H. Walther, Academic Press, Cambridge, 1997.

Publications in Refereed Journals:

Accepted:

Resolution of quantum and classical "ghost" imaging,
 Phys. Rev. A, (2005) (M. DÕAngelo, A. Valencia, M.H. Rubin, and Y.H. Shih).

Published:

Two-photon Imaging with Thermal Light,
  Phys. Rev. Lett., Vol. 94, 063601 (2005) (A. Valencia, G. Scarcelli, M. DÕAngelo, and Y.H. Shih).

Two-photon Interference with Thermal Light,
  Europhysics Lett., Vol. 68, 618 (2004) (G. Scarcelli, A. Valencia, and Y.H. Shih).

Distant Clock Synchronization using Entangled Photon Pairs,
  Appl. Phys. Lett., Vol. 85, 2655 (2004) (A. Valencia, G. Scarcelli, and Y.H. Shih).

Experimental Study of the Momentum Correlation of a Pseudo-Thermal Field in the Photon-Counting Regime,
  Phys. Rev. A, Rapid Comm., Vol. 70, 051802(R) (2004) (G. Scarcelli, A. Valencia, and Y.H. Shih).

Identifying Entanglement Using Quantum Ghost Interference and Imaging,
  Phys. Rev. Lett., Vol. 92, 233601 (2004) (M. DÕAngelo, Y.H. Kim, S.P. Kulik, and Y.H. Shih).

Remote Spectral Measurement Using Entangled Photons,
  Appl. Phys. Lett, Vol. 83, 5560 (2003) (G. Scarcelli, A. Valencia, S.Gompers and Y.H. Shih).

Experimental Entanglement Concentration and Universal Bell-State Synthesizer,
  Phys. Rev. A, Vol. 67, Rapid Comm., 010301(R) (2003) (Y.-H. Kim, M.V. Chekhova, S.P. Kulik, and Y.H. Shih).

Entangled Two-photon Wave Packet in a Dispersive Medium,
  Phys. Rev. Lett., Vol. 88, 183601 (2002) (A. Valencia, M.V. Chekhova, A. Trifonov, and Y.H. Shih).

Quantum Imaging, Quantum Lithography and the Uncertainty Principle,
  Special Issue of Journal of Modern Optics, Vol. 49, 2275 (2002) (Y.H. Shih).

Quantum Teleportation with a Complete Bell State Measurement,
  Special Issue of Journal of Modern Optics, Vol. 49, 221 (2002) (Y.-H. Kim, S. P. Kulik, and Y. Shih).

Anti-correlation effect in femtosecond-pulse pumped type-II spontaneous parametric down-conversion,
  Physical Review A, Rapid Comm., Vol. 64, 011801(R) (2001) (Y.-H. Kim, V. Berardi, M. V. Chekhova, and Y.H. Shih).

Bell State Preparation Using Pulsed Non-Degenerate Two-Photon Entanglement,
  Phys. Rev. A, Rapid Comm., Vol. 63, 060301(R) (2001) (Y.-H. Kim, S.P. Kulik, and Y.H. Shih).

Two-photon Diffraction and Quantum Lithography,
  Phys. Rev. Lett., Vol. 87, 013602(R) (2001) (M. DÕAngelo, M.V. Chevova, and Y.H. Shih).

Interferometric Bell State Preparation using Femtosecond Pulse Pumped Spontaneous Parametric Down-Conversion,
  Phys. Rev. A, Vol. 63, 062301 (2001) (Y.H. Kim, M.V. Chekhova, S.P. Kulik, M.H. Rubin, and Y.H. Shih).

Quantum Teleportation with Complete Bell State Measurement,
  Phys. Rev. Lett., Vol. 86, 1370 (2001) (Y.H. Kim, S.P. Kulik, and Y.H. Shih).

Temporal Indistinguishability and Quantum Interference,
  Phys. Rev. A, Vol. 62, 043820 (2001) (Y.H. Kim, V. Berardi, M.V. Chekova, A. Garuccio, and Y.H. Shih).

High-intensity Pulsed Source of Space-time and Polarization Double-entangled Photon Pairs,
  Phys. Rev. A, Rapid Comm., Vol. 62, 011802(R) (2000) (Y.H. Kim, S.P. Kulik, and Y.H. Shih).

First-order Interference of Nonclassical Light Emitted Spontaneously at Different Times,
  Phys. Rev. A, Rapid Comm., Vol. 61, 051803(R) (2000) (Y.H. Kim, M.V. Chekhova, S.P. Kulik, Y.H. Shih, and M.H. Rubin).

Quantum Entanglement: from Popper's Experiment to Quantum Eraser,
  Optics Communications, Vol. 179, 357 (2000) (Y.H. Shih and Y.H. Kim).

Delayed Choice Quantum Eraser,
  Phys. Rev. Lett., Vol. 84, 1 (2000) (Y.H. Kim, R. Yu, S.P. Kulic, Y.H. Shih, and M.O. Scully).

Experimental Demonstration of Popper's Experiment: Violation of the Uncertainty Principle?,
  Foundations of Physics, Vol. 29, 1849 (1999) (Y.H. Kim and Y.H. Shih).

Experimental Study of a Subsystem in an Entangled Two-photon State,
 Phys. Rev. A, Vol. 60, 2685 (1999) (D.V. Strekalov, Y.H. Kim, and Y.H. Shih).

Quantum Interference by Two Temporally Distinguishable Pulses,
 , Phys. Rev. A, Rapid Comm., Vol. 60, R37 (1999) (Y.H. Kim, M.V. Chekhova, S.P. Kulik, and Y.H. Shih).

Optical Wigner Functions for Two-photon Entangled Wave Packets,
 , JOSB, Vol. 16, 1730 (1999) (Y. Ben-Aryeh, Y.H. Shih, and M.H. Rubin).

A Novel Supramolecular Device Programmed for Secondharmonic Generation,
  Nonlinear Optics, Vol. 20, 157 (1999) (O.K. Kim, L.S. Choi, T.E. Mlsna, R.A. McGill, H.Y. Zhang, X.H. He, and Y.H. Shih).

Growth of Nonlinear Optical Thin Films of Kta1-xNbxO3 on GaAs by Pulsed Laser Deposition for Integrated Optics,
  Appl. Phys. Lett., Vol. 73, 3806 (1998) (K.S. Harshavardhan, L.A. Knauss , H.Y. Zhang, X.H. He, and Y.H. Shih).

Theory of Triphoton State,
 Phys. Rev. A, Vol. 57, 2076 (1998) (T.E. Keller, M.H. Ruin, Y.H. Shih, and L.A. Wu).

What We Can Learn About Single Photons in A Two-Photon Interference Experiment,
  Phys. Rev. A, Vol. 57, 567 (1998) (D.V. Strekalov, T.B. Pittman, and Y.H. Shih).

Optical and Nonlinear Optical Study of Kta0.52Nb0.48O3 Epitaxial Film,
  Optics Lett., Vol. 22, 1745 (1997) (H.Y. Zhang, X.H. He, Y.H. Shih, K.S. Harshavardhan, and L.A. Knauss).

Interference Effects in Spontaneous Two-Photon Parametric Scattering from Two Macroscopic Regions,
  Phys. Rev. A, Vol. 56, 3214 (1997) (A.V. Burlakov, D.N. Klyshko, S.P. Kulik, A.N. Penin, Y.H. Shih, and D.V. Strekalov).

Two-Photon Geometric Phase,
  Phys. Rev. A, Vol. 56, 3129 (1997) (D.V. Strekalov and Y.H. Shih).

Can Two-Photon Interference Be Considered the Interference of Two Photon?,
  Phys. Rev. Lett., Vol. 77, 1917 (1996) (T.B. Pittman, D.V. Strekalov, A. Migdall, M.H. Rubin, A.V. Sergienko, and Y.H. Shih)

Postselection-Free Energy-Time Entanglement,
  Phys. Rev. A, Rapid Comm., Vol. 54, R1 (1996) (D.V. Strekalov, T.B. Pittman, A.V. Sergienko, Y.H. Shih and P.G. Kwiat).

The Study of Nonlinear Optical Effects in GaN:Mg Epitaxial Film,
  Appl. Phys. Lett., Vol. 69, 11 (1996), (H.Y. Zhang, X.H. He, Y.H. Shih, M. Schurman, Z.C. Feng, and R.A. Stall).

Waveguide Study and Refractive Indices of GaN:Mg Epitaxial Film,
  Optics Lett., Vol. 21, No. 19 (1996), (H.Y. Zhang, X.H. He, Y.H. Shih, M. Schurman, Z.C. Feng, and R.A. Stall).

Second-Harmonic Generation by Spontaneous Self-Poling of Supramolecular Thin Films of an Amylose-Dye Inclusion Complex,
  J. Am. Chem. Soc., Vol. 118, 12220 (1996) (O.K. Kim, L.S. Choi, H.Y. Zhang, X.H. He, and Y.H. Shih).

Two-Photon Geometric Optics,
  Phys. Rev. A, Vol.t53, 2804 (1996) (T.B. Pittman, D.V. Strekalov, D.N. Klyshko, M.H. Rubin, A.V. Sergienko, and Y.H. Shih).

Two-Photon 'Ghost' Image and Interference-Diffraction,
  Acta Sinica Quantum Optica, Vol. 2, 1 (1996) (Y.H. Shih, A.V. Sergienko, T.B. Pittman, D.V. Strekalov, and D.N. Klyshko).

New High-Intensity Source of Polarization-Entangled Photon Pairs,
  Phys., Rev. Lett., Vol. 75, 4337 (1995) (P.G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A.V. Sergienko, and Y.H. Shih).

Optical Imaging by Means of Two-Photon Entanglement,
  Phys. Rev. A, Rapid Comm., Vol. 52, R3429 (1995) (T.B. Pittman, D.V. Strekalov, A.V. Sergienko and Y.H. Shih).

Observation of Two-Photon `Ghost' Interference and Diffraction,
  Phys. Rev. Lett., Vol. 74, 3600 (1995) (D.V. Strekalov, A.V. Sergienko, D.N. Klyshko, and Y.H. Shih).

Experimental Tests of Bell's Inequalities Based on Space-Time and Spin Variables,
  Phys. Rev. A, Vol. 51, 3495 (1995) (T.B. Pittman, Y.H. Shih, A.V. Sergienko, and M.H. Rubin).

Experimental Evaluation of A Two-photon Wavepacket in Type II Parametric Down Conversion,
  J. of Opt. Soc. of America, B, Vol. 12, 859 (1995) (A.V. Sergienko and Y.H. Shih).

Characterization of KNSBN:Cu Crystal with Two-Wave Coupling at Visible and Infrared Wavelengths,
  Appl. Phys. B. Vol. 61, 207 (1995) (H.Y. Zhang, H.M. Jiang, Y.H. Shih).

The Theory of Two-photon Entanglement in Type II Optical Parametric Down Conversion,
  Phys. Rev. A, Vol. 50, 5122 (1994) (M.H. Rubin, D.N. Klyshko, Y.H. Shih, and A.V. Sergienko).

Observation of Quantum Beating in A Simple Beam-Splitting Experiment: Two-Particle Entanglement in Spin and Space-Time,
  Phys. Rev. A, Vol. 50, 2564 (1994) (Y.H. Shih and A.V. Sergienko).

Two-Photon Entanglement in Type II Parametric Down Conversion,
  Phys. Rev. A, Vol. 50, 23 (1994) (Y.H. Shih, A.V. Sergienko, M.H. Rubin, T.E. Kiess and C.O. Alley).

A Two-Photon Interference Experiment Using Type II Optical Parametric Down Conversion,
  Phys. Lett. A, Vol. 191, 201 (1994) (Y.H. Shih and A.V. Sergienko).

Two Photon Interference in A Standard Mach-Zehnder Interferometer,
  Phys. Rev. A, Vol. 49, 4243 (1994) (Y.H. Shih, A.V. Sergienko, T.E. Kiess, M.H. Rubin, and C.O. Alley).

Two-Photon Anti-Correlation in A Hanbury Brown-Twiss Type Experiment,
  Phys. Lett. A, Vol. 186, 29 (1994) (Y.H. Shih, A.V. Sergienko).

Two-photon Dispersion and Polarization Entanglement in Type-II Parametric Down Conversion,
  Laser Physics, Vol. 4, 644 (1994) (Y.H. Shih, A.V. Sergienko, M.H. Rubin, T.E. Kiess, and C.O. Alley).

Two-Photon Entanglement and Einstein-Podolsky-Rosen State in Parametric Down Conversion,
  International J. of Laser Research, (1993) (Y.H. Shih, A.V. Sergienko, M.H. Rubin, T.E. Kiess, and C.O. Alley).

Einstein-Podolsky-Rosen-Bohm Experiment Using Pairs of Light Quanta Produced by Type II Parametric Down Conversion,
  Phys. Rev. Lett., Vol. 71, 3893 (1993) (T.E. Kiess, Y.H. Shih, A.V. Sergienko, and C.O. Alley).

Picosecond Phase Conjugation and Two Wave Coupling in SBN,
  J. of Modern Optics (Letter), Vol. 41, 669 (1993) (H.Y. Zhang, X.H. He, Y.H. Shih, and L. Yan).

A Four Photon Interference Experiment for the Testing of Greenberger-Horne-Zeilinger Theorem,
  Phys. Lett. A, Vol. 182, 16 (1993) (Y.H. Shih and M.H. Rubin).

Study of Induced Temporal Coherence in Optical Parametric Down Conversion,
  Journal of Modern Optics (Letter), Vol. 40, 1425 (1993) (A.V. Sergienko, Y.H. Shih, and M.H. Rubin).

Einstein-Podolsky-Rosen State for Space-Time Variables in A Two Photon Interference Experiment,
  Phys. Rev. A, Vol. 47, 1288 (1993) (Y.H. Shih, A.V. Sergienko, and M.H. Rubin).

High Reflectivity Broad Band Self-Pumped Phase Conjugator at Near Infrared Wavelengths using SBN:Ce,
  Journal of Modern Optics (Letter), Vol. 40, 2321 (1993) (Y.H. Shih, H.Y. Zhang, X.H. He, and L. Yan).

Models of a Two Photon EPR Interference Experiment,
  Phys. Rev. A, Vol. 45, 8138 (1992) (M.H. Rubin and Y.H. Shih).

High Reflectivity and Broad Band Phase Conjugator in Near Infrared Wavelengths,
  Appl. Phys. Lett., Vol. 61, 1910 (1992) (Y.H. Shih, H.Y. Zhang, and X.H. He).

Two Wave Coupling and Self-Pumped Phase Conjugation of SBN:Ce at Near Infrared Wavelengths,
  Optics Comm., Vol. 89, 263 (1992) (H.Y. Zhang, X.H. He, and Y.H. Shih).

Two Wave Coupling and Self-Pumped Phase Conjugation at Near Infrared Wavelength in BaTiO,
  Optics Comm., Vol. 88, 424 (1992) (H.Y. Zhang, X.H. He, and Y.H. Shih).

A New Method for Measuring the Electro-Optic Coefficients with Higher sensitivity and Higher Accuracy,
  Optics Comm., Vol. 86, 509 (1991) (H.Y. Zhang, X.H. He, and Y.H. Shih).

Two-Photon Interferometry: Report of A Two-Photon Interference Experiment,
  Journal of Soviet Laser Research, Vol. 12, 6 (1991) (Y.H. Shih, M.H. Rubin, and A.V. Sergienko).

A New Type of EPR Experiment Using Light Quanta Produced by A Nonlinear Optical Process,
  Acta Optica Sinica, Vol. 9, 1 (1989) (Y.H. Shih and C.O. Alley).

New Type of Einstein-Podolsky-Rosen-Bohm Experiment Using Pairs of Light Quanta Produced by Optical Parametric Down Conversion,
  Phys. Rev. Lett., Vol. 61, 2921 (1988) (Y.H. Shih and C.O. Alley).

Conference Publications:

More then 100, including 70 invited presentations in national and international professional conferences and workshops.

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