TY - JOUR
T1 - Domain mapping of inverse photonic crystals by laser diffraction
AU - Sinitskii, Alexander
AU - Abramova, Vera
AU - Laptinskaya, Tatyana
AU - Tretyakov, Yuri D.
N1 - Funding Information:
The work was supported by the Russian Foundation for Basic Research (grants Nos. 05-03-32778 and 04-03-39010), the Program for Fundamental Research of Russian Academy of Sciences, “Leading Scientific Schools” Program (grant No. 4586.2006) and the Federal Target Science and Engineering Program. We thank Nikolai Lyskov for carrying out TGA experiments, Alexander Veresov for SEM study of the samples, Andrey Fedyanin for access to OPO equipment and Eugene Goodilin for valuable discussions.
PY - 2007/7/2
Y1 - 2007/7/2
N2 - We report the first laser diffraction study of photonic crystals with an inverse opal structure. The samples were prepared by deposition of monodisperse polystyrene microspheres onto vertical glass substrates, infiltration of voids with WO3 sol followed by its gelation, and final removal of the polymer microspheres by annealing. Scanning electron micrographs revealed that the films consisted of 25-500 μm2 domains isolated by cracks. By using laser diffraction it was possible to calculate the period of photonic crystals and to examine their crystalline quality. We present for the first time the method for visualization of macroscale ordering of photonic crystals, termed as domain mapping. We constructed a domain map of a 2 mm2 area of the sample, demonstrating both large "single crystal" regions (up to 0.4 × 0.4 mm2), where all domains have the same crystallographic orientation, and disordered regions. The proposed method of quality control takes on special significance for inverse photonic crystals, for which average domain size is noticeably less than that of conventional opals.
AB - We report the first laser diffraction study of photonic crystals with an inverse opal structure. The samples were prepared by deposition of monodisperse polystyrene microspheres onto vertical glass substrates, infiltration of voids with WO3 sol followed by its gelation, and final removal of the polymer microspheres by annealing. Scanning electron micrographs revealed that the films consisted of 25-500 μm2 domains isolated by cracks. By using laser diffraction it was possible to calculate the period of photonic crystals and to examine their crystalline quality. We present for the first time the method for visualization of macroscale ordering of photonic crystals, termed as domain mapping. We constructed a domain map of a 2 mm2 area of the sample, demonstrating both large "single crystal" regions (up to 0.4 × 0.4 mm2), where all domains have the same crystallographic orientation, and disordered regions. The proposed method of quality control takes on special significance for inverse photonic crystals, for which average domain size is noticeably less than that of conventional opals.
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U2 - 10.1016/j.physleta.2007.02.075
DO - 10.1016/j.physleta.2007.02.075
M3 - Article
AN - SCOPUS:34248993285
SN - 0375-9601
VL - 366
SP - 516
EP - 522
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 4-5
ER -