Abstract: An optical coating includes a first resonator with a broadband light absorber. A second resonator includes a narrowband light absorber which is disposed adjacent to and optically coupled to the broadband light absorber. The phase of light reflected from the first resonator slowly varies as a function of wavelength compared to the rapid phase change of the second resonator which exhibits a phase jump within the bandwidth of the broadband light absorber. A thin film optical beam spitter filter coating is also described.

Abstract: Disclosed herein are optical sensor platform(s) employing hyperbolic metamaterial(s) supporting highly confined bulk plasmon guided modes over broad wavelength range(s) from visible to near-infrared. By exciting these modes using—for example—a two-dimensional (2D) grating-coupling technique, sensors according to the present disclosure advantageously exhibit extreme sensitivity modes up to a maximum of 30,000 nm per refractive index unit and a record figure of merit of 590 thereby permitting detection of ultralow-molecular-weight bio-molecules at picomolar concentrations.

Abstract: Disclosed herein are optical sensor platform(s) employing hyperbolic metamaterial(s) supporting highly confined bulk plasmon guided modes over broad wavelength range(s) from visible to near-infrared. By exciting these modes using—for example—a two-dimensional (2D) grating-coupling technique, sensors according to the present disclosure advantageously exhibit extreme sensitivity modes up to a maximum of 30,000 nm per refractive index unit and a record figure of merit of 590 thereby permitting detection of ultralow-molecular-weight bio-molecules at picomolar concentrations.