Daniel J. Gauthier

Bass Fellow

Robert C. Richardson Professor

Physics Bldg, 120 Science Dr., Durham, NC 27708
Campus Box: 
(919) 660-2511
(919) 660-2525


Prof. Gauthier is interested in a broad range of topics in the fields of nonlinear and quantum optics, and nonlinear dynamical systems.

In the area of optical physics, his group is studying the fundamental characteristics of highly nonlinear light-matter interactions at both the classical and quantum levels and is using this understanding to develop practical devices.

At the quantum level, his group has three major efforts in the area of quantum communication and networking. In one project, they are investigating hybrid quantum memories where one type of memory is connected to another through the optical field (so-called flying qubits). In particular, they are exploring nonlinear optical methods for frequency converting and impedance matching photons emitted from one type of quantum memory (e.g., trapped ions) to another (e.g., quantum dots).

In another project, they are exploring methods for efficiently transmitting a large number of bits of information per photon. They are encoding information on the various photon degrees of freedom, such as the transverse modes, one photon at a time, and using efficient mode sorters to direct the photons to single-photon detectors. The experiments make use of multi-mode spontaneous down conversion in a nonlinear crystal to produce quantum correlated or entangled photon pairs.

Another recent interest is the development of the world's most sensitive all-optical switch. Currently, they have observed switching with an energy density as low as a few hundred yoctoJoules per atomic cross-section, indicating that the switch should be able to operate at the single-photon level. The experiments use a quasi-one-dimensional ultra-cold gas of rubidium atoms as the nonlinear material. They take advantage of a one-dimensional optical lattice to greatly increase the nonlinear light-matter interaction strength.

In the area of nonlinear dynamics, his group is interested in the control and synchronization of chaotic devices, especially optical and radio-frequency electronic systems.  They are developing new methods for private communication of information using chaotic carriers, using chaotic elements for distance sensing (e.g., low-probability-of-detection radar), using networks of chaotic elements for remote sensing, and using chaotic elements for generating truly random numbers at high data rates. Recently, the have observed 'Boolean chaos,' where complex behavior is observed in a small network of commercially-available free-running logic gates.

Optics - University of Rochester
Ph.D. - University of Rochester
Optics - University of Rochester
M.S. - University of Rochester
Optics - University of Rochester
B.S. - University of Rochester

Broadband Chaos
In Nonlinear Laser Dynamics: From Quantum Dots to Cryptography edited by K. Luege. January, 2012; pp. 317-332. Weinheim: John Wiley-VCH Verlag.

Causality in superluminal pulse propagation
In an invited chapter in Time in Quantum Mechanics II edited by G. Muga, A. Ruschhaupt, A. del Campo. 2010; pp. 175-204. Berlin: Springer.

Superluminal communication in quantum mechanics
In an invited article in Compendium of Quantum Physics: Concepts, Experiments, History and Philosophy edited by D. Greenberger, K. Hentschel, and F. Weinert. April, 2009; pp. 776-769. Berlin: Springer-Verlag.

Slow light in optical waveguides
In an invited chapter in Slow Light: Science and Applications edited by J. Khurgin and R.S. Tucker. December, 2008; pp. 37-57. Boca Raton: CRC Press.

`Using Transverse Patterns for All-Optical Switching
In Proceedings of The Ninth Rochester Conference on Coherence on Quantum Optics (CQO9) edited by N. Bigelow, J. Eberly and C. Stroud, Jr.. May, 2008; Melville, NY: American Institute of Physics.

Controlling fast chaos in opto-electronic delay dynamical systems
In Handbook of Chaos Control, 2nd Ed. edited by E. Schöll, H. G. Schuster. 2008; pp. 407-425. : WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany.

Controlling Optical Chaos, Spatio-temporal Dynamics, and Patterns
In in Advanced in Atomic, Molecular, and Optical Physics (an invited chapter) edited by P.R Berman, E. Arimondo, and C. Lin. 2007; pp. 615-695. : Elsevier.

Observation of ultra-low-light-level all-optical switching
In Proc. SPIE edited by H. J. Coufal, Z. U. Hasan, and A. E. Craig. ; pp. 60 - 68. : .

Time delay systems with band-limited feedback
In proceedings of the Fifth EUROMECH Nonlinear Dynamics Conference (ENOC-2005), Eindhoven, The Netherlands, August 7--12 edited by D.H. Van Campen, M.D. Lazurko W.P.J.M. Van Der Oever. ; pp. 1115-1123. : .

Dynamics of a two-photon laser
In Coherence and Quantum Optics VIII edited by N.P. Bigelow, J.H. Eberly, C.R. Stroud and I.A. Walmsley. 2003; pp. 547-548. : Kluwer Academic/Plenum Publishers, New York.

2011 Robert C. Richardson Professor of Physics, Duke University
2009 Outstanding Referee of the Physical Review and Physical Review Letters, American Physical Society
2006 Fellow, Optical Society of America
2006 Fellows, Optical Society of America
2002 Young Investigator, National Science Foundation
2002 Young Investigator, U.S. Army Research Office
2002 Fellow of the American Physical Society, Division of Atomic, Molecular, and Optical Physics
2002 Anne T. and Robert M. Bass Associate Professor of Physics, Duke University
2002 Fellow, American Physical Society
2000 Barbara and Randal Smith and Duke University Faculty Enrichment Award, Duke University
1997 Honorary Faculty Member, Golden Key National Honor Society