Diabolical point and conical-like diffraction in periodic plasmonic nanostructures
نویسندگان
چکیده
منابع مشابه
Conical diffraction: observations and theory
Conical refraction was produced by a transparent biaxial crystal of KGd(WO4)2 illuminated by a laser beam. The ring patterns at different distances from the crystal were magnified and projected onto a screen, giving rings whose diameter was 265 mm. Comparison with theory revealed all predicted geometrical and diffraction features: close to the crystal, there are two bright rings of internal con...
متن کاملPlasmonic Nanostructures and Applications
Gold nanoparticles with unique optical properties may be useful as biosensors in living whole cells. Using a simple and inexpensive technique, we recorded surface plasmon resonance (SPR) scattering images and SPR absorption spectra from both colloidal gold nanoparticles and from gold nanoparticles conjugated to monoclonal anti-epidermal growth factor receptor (anti-EGFR) antibodies after incuba...
متن کاملSelf-aligned placement and detection of quantum dots on the tips of individual conical plasmonic nanostructures.
Hybrid structures of few or single quantum dots (QDs) coupled to single optical antennas are of prime interest for nano-optical research. The photoluminescence (PL) signal from single nanoemitters, such as QDs, can be enhanced, and their emission characteristics modified, by coupling them to plasmonic nanostructures. Here, a self-aligned technique for placing nanoscale QDs with about 10 nm late...
متن کاملChiral Plasmonic Nanostructures
Noble-metal nanoparticles (NPs) occupy the top drawer in the toolbox of scientists working with optical materials. These NPs confine light in extremely small volumes, and their individual scattering properties can be designed virtually at will by shaping and arranging the NPs carefully. When their behaviour is considered collectively, the NPs can also be used as building blocks (meta-atoms or m...
متن کاملOptical interactions in plasmonic nanostructures
We present a review of plasmonic nanostructures in which the constituent materials are coupled together by optical interactions. The review first provides a comprehensive coverage of theoretical framework where the optical interactions are described by the multiple scattering among the nanostructures. We then discuss the two limiting cases of weak and strong interactions. The weak interaction r...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2010
ISSN: 1094-4087
DOI: 10.1364/oe.18.010120