Efficient, designable, and broad-bandwidth optical extinction via aspect-ratio-tailored silver nanodisks
نویسندگان
چکیده
منابع مشابه
Efficient, designable, and broad-bandwidth optical extinction via aspect-ratio-tailored silver nanodisks.
Subwavelength resonators, ranging from single atoms to metallic nanoparticles, typically exhibit a narrow-bandwidth response to optical excitations. We computationally design and experimentally synthesize tailored distributions of silver nanodisks to extinguish light over broad and varied frequency windows. We show that metallic nanodisks are 2-10x more efficient in absorbing and scattering lig...
متن کاملEfficient Superfluorescent Light Sources with Broad Bandwidth
We demonstrate various efficient broad-band light sources at ~1μm wavelength with a 3dB bandwidth of up to 65nm at 108mW output power, based on rare-eartb doped silica fibers and a simple adjustable spectral filter.
متن کاملLarge extinction ratio optical electrowetting shutter.
A large extinction ratio optical shutter has been demonstrated using electrowetting liquids. The device is based on switching between a liquid-liquid interface curvature that produces total internal reflection and one that does not. The interface radius of curvature can be tuned continuously from 9 mm at 0 V to -45 mm at 26 V. Extinction ratios from 55.8 to 66.5 dB were measured. The device sho...
متن کاملBroad bandwidth optical and mechanical rheometry of wormlike micelle solutions.
We characterize the linear viscoelastic shear properties of an aqueous wormlike micellar solution using diffusing wave spectroscopy (DWS) based tracer microrheology as well as various mechanical techniques such as rotational rheometry, oscillatory squeeze flow, and torsional resonance oscillation covering the frequency range from 10(-1) to 10(6) rad/s. Since DWS as well as mechanical oscillator...
متن کاملDark Plasmonic Breathing Modes in Silver Nanodisks
We map the complete plasmonic spectrum of silver nanodisks by electron energy loss spectroscopy and show that the mode which couples strongest to the electron beam has radial symmetry with no net dipole moment. Therefore, this mode does not couple to light and has escaped from observation in optical experiments. This radial breathing mode has the character of an extended two-dimensional surface...
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: 2016
ISSN: 1094-4087
DOI: 10.1364/oe.24.010806