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Title: Ultrafast adiabatic manipulation of slow light in a photonic crystal
Authors: Kampfrath, T.
Beggs, Daryl Matthew
White, Tom P
Melloni, A.
Krauss, Thomas Fraser
Kuipers, L.
Keywords: Transitions
Resonator
QC Physics
Issue Date: 27-Apr-2010
Citation: Kampfrath , T , Beggs , D M , White , T P , Melloni , A , Krauss , T F & Kuipers , L 2010 , ' Ultrafast adiabatic manipulation of slow light in a photonic crystal ' Physical Review A , vol 81 , no. 4 .
Abstract: We demonstrate by experiment and theory that a light pulse propagating through a Si-based photonic-crystal waveguide is adiabatically blueshifted when the refractive index of the Si is reduced on a femtosecond time scale. Thanks to the use of slow-light modes, we are able to shift a 1.3-ps pulse at telecom frequencies by 0.3 THz with an efficiency as high as 80% in a waveguide as short as 19 mu m. An analytic theory reproduces the experimental data excellently, which shows that adiabatic dynamics are possible even on the femtosecond time scale as long as the external stimulus conserves the spatial symmetry of the system.
Version: Publisher PDF
Status: Peer reviewed
URI: http://hdl.handle.net/10023/2913
DOI: http://dx.doi.org/10.1103/PhysRevA.81.043837
ISSN: 1050-2947
Type: Journal article
Rights: ©2010 The American Physical Society
Appears in Collections:University of St Andrews Research
Physics & Astronomy Research



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