Uniform photocurrent densities can be achieved in waveguide photodetectors by tailoring the extension length of an index-matching layer in eont of the diode. We demonstrate up to 9dB improvement in RF linearity at 2OGHz. Introduction: Spur hx Dynamic Range (SFDR), RF insertion loss and signal to noise ratio of analog fiber optic links improve with increasing maximum linear photocurrent [I]. The...

Single-photon avalanche diode (SPAD) is a promising photosensor because of its high sensitivity to optical signals in weak illuminance environment. Recently, it has drawn much attention from researchers in visible light communications (VLC). However, existing literature only deals with the simplified channel model, which only considers the effects of Poisson noise introduced by SPAD, but neglec...

Chitosan membrane with glutathione reductase and sulfhydryl oxidase (SOX) was subsequently integrated onto the surface of spectrographic graphite rods for obtaining a glutathione biosensor. The working principle was based on the monitoring of O(2) consumption that correlates the concentration of glutathione during the enzymatic reaction. A linear relationship between sensor response and concent...

The adoption of a short source-detector distance, combined with a time-resolved acquisition, can be advantageous in diffuse optical imaging due to the stricter spatial localization of the probing photons, provided that the strong burst of early photons is suppressed using a time-gated detection scheme. We propose a model for predicting the effect of the time-gated measurement system using a tim...

The e2v CCD236 is a swept charge device (SCD) designed as a soft X-ray detector for spectroscopy in the range 0.8 keV to 10 keV [1]. It benefits from improvements in design over the previous generation of SCD (the e2v CCD54) [2] to allow for increased detector area, a reduction in split X-ray events and improvements to radiation hardness [3]. To enable the suppression of surface dark current th...

1 Quantum Interference & Entanglement Description (QIE) 2 Quantum Interference & Entanglement Pictures 3 Before the 1st Day of Lab Objectives for this experiment 4 Introduction 4.1 Bell's Theorem and the CHSH Inequality 5 Experimental Setup 5.1 Overview 5.2 Laser Diode 5.3 BBOs 5.4 Detection 5.5 Coincidence Counting 5.6 Proper Start-up Procedure 6 Alignment 6.1 Violet Beam Path 6.2 Infrared Bea...

The e2v CCD236 is a swept charge device (SCD) designed as a soft X-ray detector for spectroscopy in the range 0.8 keV to 10 keV [1]. It benefits from improvements in design over the previous generation of SCD (the e2v CCD54) [2] to allow for increased detector area, a reduction in split X-ray events and improvements to radiation hardness [3]. To enable the suppression of surface dark current th...