Navigationsweiche Anfang

Navigationsweiche Ende

Sprache wählen

Institute for High-Frequency and Communication Technology


Prof. Dr. rer. nat. Ullrich Pfeiffer

Aktuelles

  • „Microwave Prize“ für Wuppertaler Radarforscher
    Die internationale Gesellschaft „Microwave Theory and Techniques Society (MTT-S)“ verleiht den Preis... [mehr]
  • Wuppertaler Forscher ist Mitglied eines neuen Sonderforschungsbereichs (SFB), welcher ab Januar 2017 für voraussichtlich 12 Jahre gefördert wird.
    Die Arbeitsgruppe um Prof. Ullrich Pfeiffer, Lehrstuhl für Hochfrequenzsysteme in der... [mehr]
  • Terahertz-Quelle aus Wuppertal
    Wissenschaft und Industrie erhoffen sich große Entwicklungspotenziale von der bisher wenig... [mehr]
  • ISSCC: World’s first CMOS terahertz video camera presented
    The University of Wuppertal, STMicroelectronics, and ISEN/IEMN presented the world’s first terahertz... [mehr]
zum Archiv ->

Dr.-Ing. Dmitry N. Chigrin

Ausgeschieden im November 2012.

 

Veröffentlichungen

Jahr:  
Alle :: 1997, ... , 2007, 2008, 2009, ... , 2012
Referenzen
28.
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
2008
27.
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
2008

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.

26.
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
2008

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:
3 / 40