Slow-light propagation using mode locking of spin precession in quantum dots

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.053823· OSTI ID:21528739

Shabaev, A ^[1]; Dutton, Z ^[2]; Kennedy, T A; Efros, Al L ^[3]

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1. George Mason University, Fairfax Virginia 22030 (United States)
2. Raytheon BBN Technologies, 10 Moulton Street, Cambridge, Massachusetts 02138 (United States)
3. Naval Research Laboratory, Washington, D.C. 20375 (United States)

We propose using mode locking to enable coherent nonlinear optical effects in inhomogenously broadened spin ensembles. We carry out detailed calculations for quantum dot systems in which increased spin coherence via mode locking has been recently observed [A. Greilich et al., Science 313, 341 (2006); 317, 1896 (2007)]. We show how, in the presence of spin locking, a strong pulse-matching effect occurs, providing a powerful tool for high-bandwidth linear optical processing. We then go on to study 'slow light' in this system and show that high-bandwidth pulses can be controllably delayed by a time comparable to the pulse width.

• OSTI ID: 21528739
• Journal Information: Physical Review. A, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevA.82.053823; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
36 MATERIALS SCIENCE
LEVEL WIDTHS
LIGHT TRANSMISSION
MODE LOCKING
NONLINEAR PROBLEMS
PRECESSION
PULSES
QUANTUM DOTS
SPIN
ANGULAR MOMENTUM
NANOSTRUCTURES
PARTICLE PROPERTIES
TRANSMISSION