Real-space observation of ultraslow light in photonic crystal waveguides

H Gersen; TJ Karle; RJP Engelen; W Bogaerts; JP Korterik; NF van Hulst; TF Krauss; L Kuipers

doi:10.1103/PhysRevLett.94.073903

Real-space observation of ultraslow light in photonic crystal waveguides

H Gersen, TJ Karle, RJP Engelen, W Bogaerts, JP Korterik, NF van Hulst, TF Krauss, L Kuipers

School of Physics

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Abstract

We show the real-space observation of fast and slow pulses propagating inside a photonic crystal waveguide by time-resolved near-field scanning optical microscopy. Local phase and group velocities of modes are measured. For a specific optical frequency we observe a localized pattern associated with a flat band in the dispersion diagram. During at least 3 ps, movement of this field is hardly discernible: its group velocity would be at most c/1000. The huge trapping times without the use of a cavity reveal new perspectives for dispersion and time control within photonic crystals.

Translated title of the contribution	Real-space observation of ultraslow light in photonic crystal waveguides
Original language	English
Pages (from-to)	1 - 4
Number of pages	4
Journal	Physical Review Letters
Volume	94 (7)
DOIs	https://doi.org/10.1103/PhysRevLett.94.073903
Publication status	Published - Feb 2005

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Publisher: The American Physical Society
Other: Images from the article appeared on the cover of the issue

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title = "Real-space observation of ultraslow light in photonic crystal waveguides",

abstract = "We show the real-space observation of fast and slow pulses propagating inside a photonic crystal waveguide by time-resolved near-field scanning optical microscopy. Local phase and group velocities of modes are measured. For a specific optical frequency we observe a localized pattern associated with a flat band in the dispersion diagram. During at least 3 ps, movement of this field is hardly discernible: its group velocity would be at most c/1000. The huge trapping times without the use of a cavity reveal new perspectives for dispersion and time control within photonic crystals.",

author = "H Gersen and TJ Karle and RJP Engelen and W Bogaerts and JP Korterik and {van Hulst}, NF and TF Krauss and L Kuipers",

note = "Publisher: The American Physical Society Other: Images from the article appeared on the cover of the issue",

year = "2005",

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doi = "10.1103/PhysRevLett.94.073903",

language = "English",

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T1 - Real-space observation of ultraslow light in photonic crystal waveguides

AU - Gersen, H

AU - Karle, TJ

AU - Engelen, RJP

AU - Bogaerts, W

AU - Korterik, JP

AU - van Hulst, NF

AU - Krauss, TF

AU - Kuipers, L

N1 - Publisher: The American Physical Society Other: Images from the article appeared on the cover of the issue

PY - 2005/2

Y1 - 2005/2

N2 - We show the real-space observation of fast and slow pulses propagating inside a photonic crystal waveguide by time-resolved near-field scanning optical microscopy. Local phase and group velocities of modes are measured. For a specific optical frequency we observe a localized pattern associated with a flat band in the dispersion diagram. During at least 3 ps, movement of this field is hardly discernible: its group velocity would be at most c/1000. The huge trapping times without the use of a cavity reveal new perspectives for dispersion and time control within photonic crystals.

AB - We show the real-space observation of fast and slow pulses propagating inside a photonic crystal waveguide by time-resolved near-field scanning optical microscopy. Local phase and group velocities of modes are measured. For a specific optical frequency we observe a localized pattern associated with a flat band in the dispersion diagram. During at least 3 ps, movement of this field is hardly discernible: its group velocity would be at most c/1000. The huge trapping times without the use of a cavity reveal new perspectives for dispersion and time control within photonic crystals.

U2 - 10.1103/PhysRevLett.94.073903

DO - 10.1103/PhysRevLett.94.073903

M3 - Article (Academic Journal)

VL - 94 (7)

SP - 1

EP - 4

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

ER -

Real-space observation of ultraslow light in photonic crystal waveguides

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