Abstract: A method for preparing blends of at least two polymer components is described herein. The disclosed method generally involves controlling relative molecular weights and ratios of the two or more polymer components by selecting a first initiator, a second initiator, and a monomer, and subjecting the reactants to conditions suitable to polymerize the monomer based at least in part on the first and second initiators in connection with obtaining the polymeric blend. The second initiator is advantageously selected based on one or more characteristics associated therewith, based on a characteristic of the first initiator. A polymeric blend produced according to such a method is also provided herein.

Abstract: A narrowband transmission system includes a dielectric grating that defines a surface and includes a plurality of longitudinal members arranged along an axis. The longitudinal members are surrounded by a medium. The longitudinal members are made of a material that has an index of refraction that is greater than an index of refraction of the medium. The dielectric grating is configured to receive radiation at the surface. The system further includes a means for breaking a symmetry between the radiation and the dielectric grating such that the dielectric grating transmits a given wavelength band of the radiation through the dielectric grating while rejecting remainder of wavelengths embodied in the radiation.

Abstract: A narrowband transmission system includes a dielectric grating that defines a surface and includes a plurality of longitudinal members arranged along an axis. The longitudinal members are surrounded by a medium. The longitudinal members are made of a material that has an index of refraction that is greater than an index of refraction of the medium. The dielectric grating is configured to receive radiation at the surface. The system further includes a means for breaking a symmetry between the radiation and the dielectric grating such that the dielectric grating transmits a given wavelength band of the radiation through the dielectric grating while rejecting remainder of wavelengths embodied in the radiation.