Format

Send to:

Choose Destination
See comment in PubMed Commons below
Opt Express. 2009 Sep 14;17(19):17060-9. doi: 10.1364/OE.17.017060.

Planar photonic crystal microspectrometers in silicon-nitride for the visible range.

Author information

  • 1School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.

Abstract

We demonstrate the feasibility of forming a compact integrated photonic spectrometer for operation in the visible wavelength range using the dispersive properties of a planar photonic crystal structure fabricated in silicon nitride. High wavelength resolution and compact device sizes in these spectrometers are enabled by combining superprism effect, negative diffraction effect, and negative refraction effect in a 45 degree rotated square lattice photonic crystal. Our experimental demonstration shows 1.2 nm wavelength resolution in a 70 microm by 130 microm photonic crystal structure with better performance than alternative structures for on-chip spectroscopy, confirming the unique capability of the proposed approach to realize compact integrated spectrometers.

PMID:
19770924
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk