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Dr.-Ing. Dmitry N. Chigrin

Ausgeschieden im November 2012.



Alle :: 1997, ... , 2007, 2008, 2009, ... , 2012
D. N. Chigrin; S. V. Zhukovsky; A. V. Lavrinenko; J. Kroha
Coupled nanopillar waveguides: optical properties and applications.
In R. B. Wehrspohn, H.-S. Kitzerow, and K. Busch, Editor, Nanophotonic Materials: Photonic Crystals, Plasmonics, and Metamaterials
Kapitel Chapter 5, Seite 77-96.
Herausgeber: Wiley, Berlin
A. A. Sukhorukov; A. V. Lavrinenko; D. N. Chigrin; D. E. Pelinovsky; Y. S. Kivshar
Slow-light dispersion in coupled periodic waveguides.
J. Opt. Soc. Am. B, 25(12):C65--C74

Schlüsselwörter: Waveguides; Photonic integrated circuits; Photonic crystals

Zusammenfassung: Periodic waveguides bring a new twist to the typical waveguiding problems of the intermediate case between photonic crystal waveguides and photonic wires or ridge waveguides. We develop an asymptotic theory applicable for a broad class of coupled periodic waveguide structures and use the analytical expressions to identify the generic types of dispersion in the vicinity of a photonic band edge, where the group velocity of light is reduced. We show that the dispersion can be controlled by the longitudinal shift between the waveguides. We also demonstrate through finite-difference time-domain simulations examples of spatial and temporal pulse dynamics in association with different types of slow-light dispersion.

S. Ha; A. A. Sukhorukov; K. B. Dossou; L. C. Botten; A. V. Lavrinenko; D. N. Chigrin; Y. S. Kivshar
Dispersionless tunneling of slow light in antisymmetric photonic crystal couplers.
Opt. Express, 16(2):1104-1114

Zusammenfassung: We suggest a novel and general approach to the design of photonic-crystal directional couplers operating in the slow-light regime. We predict, based on a general symmetry analysis, that robust tunneling of slow-light pulses is possible between antisymmetrically coupled photonic crystal waveguides. We demonstrate, through Bloch mode frequency-domain and finite-difference time-domain (FDTD) simulations that, for all pulses with strongly reduced group velocities at the photonic band-gap edge, complete switching occurs at a fixed coupling length of just a few unit cells of the photonic crystal.

Dieses Jahr / Total:
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