We present an experimental observation on particles adsorbed to a whispering gallery mode (WGM) optical resonator produced from a glass sphere ≅100 μm in radius. For spherical adsorbates of radius a ≅100 nm (meso-optic, 2πa/λ ~1) we find a striking nonlinear dependence of the induced wavelength shift on the adsorbed particle density, whereas for Rayleigh particles with dimensions much smaller t...

The interactions of β-lactoglobulin AB in the presence of cationic surfactants such as Cetyltrimethylammonium bromide and Cetyltrimethylammonium p-Toluenesulfonate have been investigated using a variety of experimental techniques such as conductivity, UV-Vis spectrophotometry and fluorimetry. The conductivity of surfactants aqueous solutions with β-lactoglobulin shows that the cmc of cationic s...

We report the design of a microstructured silica-based fiber for widely tunable soliton self-frequency shift, suitable pumping with two most common laser wavelengths: 1.04 {\mu}m and 1.55 {\mu}m. Depending on pump source, output spectrum can be continuously tuned up to 1.67 (pump at {\mu}m) or 1.95 in same 1.5 m-long sample, pump-to-soliton conversion efficiency higher than 20%. The is highly b...

Circularly polarized luminescent chiral organogels based on fluorescence resonance energy transfer are fabricated by supramolecular co-assembly in an achiral polymer system, which a wavelength shift and amplified g lum achieved.