Results 11 to 20 of about 1,069,051 (295)
Fringe Visibility Estimators for the Palomar Testbed Interferometer [PDF]
, 1998 Visibility estimators and their performance are presented for use with the Palomar Testbed Interferometer (PTI). One operational mode of PTI is single-baseline visibility measurement using pathlength modulation with synchronous readout by a NICMOS-3 ...
Colavita Jet Propulsion, M. M. Colavita
core +4 more sources
Advanced Intelligent Systems, 2022 The analog AI core concept is appealing for deep‐learning (DL) because it combines computation and memory functions into a single device. Yet, significant challenges such as noise and weight drift will impact large‐scale analog in‐memory computing. Here,
Jin-Ping Han +13 more
doaj +1 more source
On the use of electron-multiplying CCDs for astronomical spectroscopy [PDF]
, 2010 Conventional CCD detectors have two major disadvantages: they are slow to read out and they suffer from read noise. These problems combine to make high-speed spectroscopy of faint targets the most demanding of astronomical observations. It is possible to
Basden +22 more
core +2 more sources
Photon-noise limited sensitivity in titanium nitride kinetic inductance detectors [PDF]
, 2015 We demonstrate photon-noise limited performance at sub-millimeter wavelengths in feedhorn-coupled, microwave kinetic inductance detectors (MKIDs) made of a TiN/Ti/TiN trilayer superconducting film, tuned to have a transition temperature of 1.4~K.
Beall, Jim +16 more
core +2 more sources
Noise analysis for CCD-based ultraviolet and visible spectrophotometry [PDF]
, 2015 Full-text not yet available due to publisher embargo.We present the results of a detailed analysis of the noise behavior of two CCD spectrometers in common use, an AvaSpec-3648 CCD UV spectrometer and an Ocean Optics S2000 Vis spectrometer. Light sources
Davenport, John +3 more
core +1 more source
Photon Counting Error Rates in Single-Bit and Multi-Bit Quanta Image Sensors
IEEE Journal of the Electron Devices Society, 2016 Photon or photoelectron counting error (bit error) rates are determined for single-bit and multi-bit quanta image sensors (QISs). The results are also applicable to CMOS image sensors with deep sub-electron read noise.
Eric R. Fossum
doaj +1 more source
Particle and Photon Detection: Counting and Energy Measurement
Sensors, 2016 Fundamental limits for photon counting and photon energy measurement are reviewed for CCD and CMOS imagers. The challenges to extend photon counting into the visible/nIR wavelengths and achieve energy measurement in the UV with specific read noise ...
James Janesick, John Tower
doaj +1 more source
A solid state spin-wave quantum memory for time-bin qubits [PDF]
, 2015 We demonstrate the first solid-state spin-wave optical quantum memory with on-demand read-out. Using the full atomic frequency comb scheme in a \PrYSO crystal, we store weak coherent pulses at the single-photon level with a signal to noise ratio $> 10 ...
de Riedmatten, Hugues +4 more
core +3 more sources
Journal of Low Power Electronics and Applications, 2017 In this paper, an ultra-low power (ULP) 10T static random access memory (SRAM) is presented for Internet of Things (IoT) applications, which operates at sub-threshold voltage. The proposed SRAM has the tendency to operate at low supply voltages with high
Pooran Singh, Santosh Kumar Vishvakarma
doaj +1 more source
Noise Reduction Techniques and Scaling Effects towards Photon Counting CMOS Image Sensors
Sensors, 2016 This paper presents an overview of the read noise in CMOS image sensors (CISs) based on four-transistors (4T) pixels, column-level amplification and correlated multiple sampling.
Assim Boukhayma +2 more
doaj +1 more source