Optical Encoder Having Pitch-Modulated Photodiode Array

The Photodiode Array: A Critical Cornerstone in Cardiac Optical Mapping

Advantages of Photodiode Array

Preface All products are continuously being improved for better performance. Spectrometers have developed in many ways since the introduction of simple and moderately priced spectrophotometers which were commercially available from the mid 1950’s. 1 Such improvements have enabled SCINCO to manufacture PDA type UV-Vis. spectrophotometers. The scope and performance of conventional single channel ...

High-power flip-chip mounted photodiode array.

Four-element modified uni-traveling-carrier (MUTC) photodiode arrays (PDA) flip-chip bonded onto transmission lines on AlN substrates are demonstrated. High RF output powers of 26.2 dBm and 21.0 dBm are achieved at 35 GHz and 48 GHz, respectively, using a PDA with 28-μm diameter photodiodes. A systematic comparison between a PDA with four 20 μm-diameter elements and a discrete detector with the...

Quality assurance using a photodiode array

Improved treatment techniques in radiation therapy provide incentive to reduce treatment margins, thereby increasing the necessity for more accurate geometrical setup of the linear accelerator and accompanying components. In the present paper, we describe the development of a novel device that enables precise and automated measurement of geometric parameters for the purpose of improving initial...

Low Scattering Photodiode-Modulated Probe for Microwave Near-Field Imaging

The space surrounding a radiating or scattering object is often divided into three regions, namely reactive near-field, near-field (NF) or Fresnel region and far-field (FF) or Fraunhoffer zones. In addition, the term “very-near-field" region is sometimes defined as very close to the antenna (e.g., antenna aperture). There are no abrupt boundaries between these three zones, however there are som...