Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Microsc. 2001 Apr;202(Pt 1):104-9.

Local phase measurements of light in a one-dimensional photonic crystal.

Author information

  • 1Applied Optics Group, Department of Applied Physics and MESA+ Research Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands. eflueck@tn.utwente.nl

Abstract

For the first time the local optical phase evolution in and around a small, one-dimensional photonic crystal has been visualized with a heterodyne interferometric photon scanning tunnelling microscope. The measurements show an exponential decay of the optical intensity inside the crystal, which consists of a periodic array of subwavelength air rods fabricated in a conventional ridge waveguide. In addition it is found that the introduction of the air rods has a counterintuitive effect on the phase development inside the structure. The heterodyne detection scheme allows the detection of low-intensity scattered waves. In the vicinity of the scattering air rods phase singularities are found with a topological charge of plus or minus one.

PMID:
11298878
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Blackwell Publishing
    Loading ...
    Write to the Help Desk