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We demonstrate how the phase of terahertz (THz) waves could be electrically manipulated in one-dimensional nanostructures such as InAs075P025-InP core-shell nanowires (NWs).
We are reviewing recent results in the development of high performance Indium Phosphide photonic integrated circuits for coherent communications applications. Integrated transmitters and receivers for fast wavelength switched applications are presented.
SiPM (Silicon Photomultiplier) is a semiconductor light diode comprised of many micropixels. Due to its positive characteristics, SiPM is considered as the next generation model of silicon photo amplifier. A photo-sensor made by multi arrays of SiPM sensors can even takes an image at the environment of old(dark) moon. Array of SiPMs with a minimum gap between the sensors is needed for some applications...
Silicon photomultiplier (SiPM) is the next generation sensor that is available for single photon counting. We measured the photon detection efficiency (PDE) for the SiPM in the 400 to 800 nm range and over bias voltage up to 4V using photon counting method. The experimental setup consists of multi-wavelength LEDs, a monochromator, two 2-inch integrating spheres, a NIST calibrated reference photodiode...
We fabricate single-sided strip sensors that are sensitive to light. The strip sensors are AC-coupled, which has coupling capacitors and bias resistors. The sensors are fabricated on a high resistivity and double-sided polished n-type silicon wafer. The sensor is designed as the single-side strip sensor but its backside (n-side) is modified to be sensitive to incoming light. This photo-strip sensor...
A monolithic scintillator has advantages over segmented scintillators due to their reduced dead area and straightforward implementation. Previous methods have used a nearest neighbor approach to match multiple photodetector responses to entries in a predetermined look-up table (LUT). We extend this technique by introducing various inverse interpolation techniques, namely kriging, inverse distance...
This work discusses an experimental demonstration of the interaction between individual nanocrystals (CdSe quantum dot as well as NV color centers in diamond) and chemically synthesized silver nanowires. Here, single photons emitted by nanocrystals are collected and guided by conducting nanowires. Moreover, this study describes and demonstrates a novel hybrid optoplasmonic approach for efficient conversion...
Nuclear resonance fluorescence is a physical process that provides an isotope-specific signature that could be used for the identification and characterization of materials. The technique involves the detection of prompt discrete-energy photons emitted from a sample that is exposed to photons in the MeV energy range. Potential applications of the technique range from detection of high explosives to...
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