Christopher Middlebrook
Michigan Technological University
51 Papers
218 Citations
Christopher Middlebrook is an academic researcher from Michigan Technological University. The author has contributed to research in topics: Waveguide (optics) & Single-mode optical fiber. The author has an hindex of 8, co-authored 51 publications. Previous affiliations of Christopher Middlebrook include University of Central Florida.
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Papers
Infrared phased‐array antenna
TL;DR: In this paper, the phase difference between the individual infrared-frequency currents from multiple dipole antennas is measured at a wavelength of 10.6 μm and the direction of maximum response depends on the phase differences from each antenna, evaluated at the bolometer location.
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Non-moving Hadamard matrix diffusers for speckle reduction in laser pico-projectors.
TL;DR: A binary diffuser known as a Hadamard matrix diffuser is presented, which eliminates the need for rotation or vibration of the diffuser for temporal averaging and is fabricated and contrast values measured showing good agreement with theory and simulated values.
Process characterization for direct dispense fabrication of polymer optical multi-mode waveguides
Joseph Carl Dingeldein,Karl A. Walczak,Brandon W. Swatowski,Craig R. Friedrich,Christopher Middlebrook,Michael C. Roggemann +5 more
TL;DR: In this paper, a syringe-based direct dispense tool was developed for repeatable direct write dispensing of blanket layers of waveguide material over a range of thicknesses, reducing waste material and affording the ability to utilize large substrates.
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Laser-direct writing of single mode and multi-mode polymer step index waveguide structures for optical backplanes and interconnection assemblies
TL;DR: In this paper, a laser direct writing (LDW) method is implemented as a cost efficient polymer waveguide (WG) fabrication method for prototyping large substrates for optical backplanes and optical interconnection assemblies.
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Direct-write electron-beam lithography of an IR antenna-coupled microbolometer onto the surface of a hemispherical lens
TL;DR: In this article, a direct-write lithography of an IR antenna-coupled microbolometer onto the surface of a hemispherical lens was proposed to eliminate the potential of an air gap between the antenna and lens.