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We developed a class of quasi-3D plasmonic crystal that consists of multilayered, regular arrays of subwavelength metal nanostructures. The complex, highly sensitive structure of the optical transmission spectra of these crystals makes them especially well suited for sensing applications. Coupled with quantitative electrodynamics modeling of their optical(More)
Colloidal quantum dots display a wide range of novel optical properties that could prove useful for many applications in photonics. Here, we report the enhancement of fluorescence emission from colloidal quantum dots on the surface of two-dimensional photonic crystal slabs. The enhancement is due to a combination of high-intensity near fields and strong(More)
Self-assembly via nanoscale phase separation offers an elegant route to fabricate nanocomposites with physical properties unattainable in single-component systems. One important class of nanocomposites are optical metamaterials which exhibit exotic properties and lead to opportunities for agile control of light propagation. Such metamaterials are typically(More)
We describe the design, fabrication, and characterization of a narrow band tunable guided mode resonance ͑GMR͒ reflectance filter that is actuated by optically induced trans-cis isomerization of an azobenzene liquid crystal. Constructing a plastic replica-molded containment cell with a rubbed polyimide film to initially direct the liquid crystal molecular(More)
Because of their potential for use in advanced electronic, nanomechanical, and other applications, large two-dimensional, carbon-rich networks have become an important target to the scientific community. Current methods for the synthesis of these materials have many limitations including lack of molecular-level control and poor diversity. Here, we present a(More)
In the published paper on page 10243, we inadvertently forgot to include following sentence for the acknowledgment: S.Y. and X.Z. acknowledge the Multidisciplinary University Research Initiative from the Air Force Office of Scientific Research (AFOSR MURI award no. FA9550-12-10488). The correct Acknowledgments paragraph is the following: X.W. and Y.Q.(More)
Recently cubic (c-) GaN/In x Ga 1-x N/GaN double heterostructures and quantum wells have been grown by MBE and MOCVD [1-3]. Contrary to their hexagonal counterparts, the cubic structures can be grown free from modulation due to spontaneous polarization and strain-induced piezoelectric fields. The spatial separation of the carriers wave function, induced by(More)
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