uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Designing photonic band gaps in SiO(2)-based face-centered cubic-structured crystals
Royal Institute of Technology, Department of Materials Science and Engineering, Stockholm.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Indian Institute of Science Education and Research, Puné, Indien.
Royal Institute of Technology, Department of Materials Science and Engineering, Stockholm.
Show others and affiliations
2011 (English)In: Journal of nanophotonics, ISSN 1934-2608, Vol. 5, 053514- p.Article in journal (Refereed) Published
Abstract [en]

We designed face-centered cubic-structured (fcc) photonic crystals whose lattice parameters were tuned by varying the size of the constituent spherical silica particles in the range 100 to 520 nm. From wide-angle optical transmission investigations and Gaussian fitting of the absorbance spectra over UV-Vis-Near IR range, we found that in these crystals the Bragg wavelengths of the photonic band gaps (PBGs) corresponding to the reflected crystal planes linearly increase with the size of the spheres as expected. From this data, the average refractive index along the different crystal planes of the fcc structure was found to be in the 1.24 to 1.32 range. The Bragg wavelengths were tuned between 400 and 1100 nm. Thus, photonic crystals of the same structure can be designed to tune the Bragg wavelengths of PBGs by selecting the sphere size. These studies open up possibilities to design a new class of "smart" photonic crystals consisting of dielectric entities of sub-micron silica spheres with added functionality from magnetic or piezoelectric nanoparticles embedded in them.

Place, publisher, year, edition, pages
2011. Vol. 5, 053514- p.
Keyword [en]
photonic crystals, photonic band gaps, designing, silica, face-centered cubic structure
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Solid State Physics
URN: urn:nbn:se:uu:diva-156617DOI: 10.1117/1.3595322ISI: 000292770500002OAI: oai:DiVA.org:uu-156617DiVA: diva2:432794
Available from: 2011-08-07 Created: 2011-08-04 Last updated: 2011-12-29Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Solid State Physics
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 408 hits
ReferencesLink to record
Permanent link

Direct link