title: Enhancing Sensitivity of a Miniature Spectrometer Using a Real-Time Image Processing Algorithm.
abstract: A real-time image processing algorithm is developed to enhance the sensitivity of a planar single-mode waveguide miniature spectrometer with integrated waveguide gratings. A novel approach of averaging along the arcs in a curved coordinate system is introduced which allows for collecting more light, thereby enhancing the sensitivity. The algorithm is tested using CdSeS/ZnS quantum dots drop casted on the surface of a single-mode waveguide. Measurements indicate that a monolayer of quantum dots is expected to produce guided mode attenuation approximately 11 times above the noise level.
authors.affiliation: Department of Electrical and Computer Engineering, Wayne State University, Detroit, MI, USA ej1973@wayne.edu.
authors.forename: Sabarish
authors.initials: S
authors.lastname: Chandramohan
authors.affiliation: Department of Electrical and Computer Engineering, Wayne State University, Detroit, MI, USA.
authors.forename: Ivan
authors.initials: I
authors.lastname: Avrutsky
keywords: Image processing; data processing algorithm; diffraction gratings; miniature spectrometers