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Inside Cover: Robust Chirped Photonic Crystals Created by Controlled Colloidal Diffusion (Angew. Chem. Int. Ed. 49/2011)
Author(s) -
Kim ShinHyun,
Jeong Woong Chan,
Hwang Hyerim,
Yang SeungMan
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201106643
Subject(s) - lattice constant , colloid , photonic crystal , materials science , photonics , semiconductor , fick's laws of diffusion , colloidal crystal , cover (algebra) , diffusion , lattice (music) , optoelectronics , nanotechnology , optics , chemistry , physics , diffraction , acoustics , thermodynamics , engineering , mechanical engineering
An on‐chip spectrometer has been developed using chirped 3D photonic crystals mounted on a complementary metal‐oxide‐semiconductor sensor array. In their Communication on page 11 649 ff. , S.‐H. Kim, S.‐M. Yang, and co‐workers show that colloidal diffusion in a photocurable medium created gradual variations in the lattice constant of the colloidal crystals. The variations in the lattice constant resulted in a color gradient that spanned the entire visible range.