High Energy Physics HEP) and Nuclear Physics NP) experiments planned at high luminosity and the extensive use of Cherenkov radiation in Calorimetry and time-of-flight particle ID require new detectors with enhanced spectral response to blue and UV wavelengths, low timing jitter, high energy resolution high granularity), dynamic range and operation in high radiation and magnetic fields. Silicon Carbide is a semiconductor best suitable for fabricating optical detectors with superior response in UV and low noise. Unfortunately, current SiC photon counting fabrication technologies are using process flows to control the peripheral electric fields that preclude designs with high granularity and stability. In Phase I we propose to develop the technology to fabricate optical detectors sensitive in the ultraviolet blue spectral range, with better performance stability, high granularity for improved energy resolution, single-photon detection, and high dynamic range. Such detector using the proposed technology and innovations will yield a new class of ultra-sensitive optical detectors capable of withstanding high magnetic and radiation fields and operating at higher temperature than silicon. In Phase I we will develop the optical detector technology fabrication flow. The company will use its previously developed single-photon detector technology to design and fabricate improved optical detectors with single photon sensitivity in ultraviolet. A new low-defect fabrication process flow and device layout will be developed to minimize the noise in the optical detectors and enhance device operational stability. Four innovations will be implemented into the front-end and back- end fabrication flows. Phase II will refine the technology for transition to pilot fabrication and fully qualify the technology, including the radiation hardness. Immediate foreseen applications in HEP and NP experiments are: Calorimetry and TOF detectors for fast scintillators, Cherenkov detectors. Potential experiments/projects: CEBAF JLab), sPhoenix BNL). Besides HEP and NP applications, the successful development of the single-photon ultraviolet detector technology will have a significant impact on nationwide programs and commercial activities like biomedical, earth science, oil exploration, ozone monitoring, and national security.
