Near-field scanning optical microscopy imaging of multimode interference. Academic Article

abstract

• By use of a near-field scanning optical microscope (NSOM) in collection mode, the intensity distribution along a 2 x 2 multimode interference coupler was directly imaged as a function of wavelength. Although calculations can predict the general trend of wavelength dependence and the approximate positions of multiple images in the coupler, the accuracy is poor because of uncertainties in the waveguide width. We show that direct imaging using a NSOM bypasses calculational uncertainties and proves to be a powerful technique for studying these waveguide devices.

authors

• Madsen, Christi

published proceedings

• Opt Lett

author list (cited authors)

• Campillo, A. L., Madsen, C. K., & Hsu, J.

citation count

• 1

complete list of authors

• Campillo, AL||Madsen, CK||Hsu, JWP

publication date

• January 2003

publisher

• Optica Publishing Group  Publisher

published in

• Optics Letters  Journal

keywords

• 0205 Optical Physics
• 0299 Other Physical Sciences

PubMed Central ID

• 12879924

Digital Object Identifier (DOI)

• 10.1364/ol.28.001111

start page

• 1111

end page

• 1113

volume

• 28

issue

• 13

URL

• http://dx.doi.org/10.1364/ol.28.001111