Experimental probe of gaps in photonic crystals

Willem L. Vos*, Judith E G J Wijnhoven, Mischa Megens

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

4 Citations (Scopus)


The optical reflectivity and transmission of a large number of photonic crystals made of colloids are measured. A wide range of densities and refractive index ratios of the constituent materials are studied. Detailed information on the crystal quality is obtained by small angle X-ray scattering experiments. Stop gap widths are determined. The widths of the gaps can be described as a measure for the interaction of strength between light and photonic crystals. Full widths at half maximum of Bragg peaks in reflection are shown, and compared to dynamical diffraction theory and photonic band structures. The reflectivity data are in excellent agreement with the theory, and thus a good measure of the stop gap widths.

Original languageEnglish
Number of pages1
Publication statusPublished - 1 Jan 1998
Externally publishedYes
EventConference on Lasers and Electro-Optics Europe, CLEO/Europe-EQEC 1998 - Scottish Exhibition and Conference Centre, Glasgow (Scotland), United Kingdom
Duration: 14 Sep 199818 Sep 1998


ConferenceConference on Lasers and Electro-Optics Europe, CLEO/Europe-EQEC 1998
Abbreviated titleCLEO/Europe-EQEC
CountryUnited Kingdom
CityGlasgow (Scotland)


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