A new solid state electronic iterative differential analyzer making maximum use of integrated circuits

The scanning electron microscope is one of the most exciting tools to be applied to the study of materials. However, it has been a logical development to equip the SEM with X-ray spectrometers and in particular solid-state energy dispersion detectors. Other relatively new techniques include Auger electron spectroscopy, Scanning Mirror Microscopy, Coates patterns and a variety of techniques for potential mapping of integrated circuits.Because of limited time and space we will limit this discussion to the use of the solid-state energy dispersion detector.Often it is desirable to know the chemical nature of the topographical features of a specimen being studied. Both dispersive and energy dispersion techniques can be used in most cases, however, the energy dispersive technique has many advantages over the dispersive system. The main advantage is the much higher X-ray efficiency and less stringent requirements on specimen geometry.

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Compact solid-state optical phased array beam scanners based on polymeric photonic integrated circuits

Scientific Reports ◽

10.1038/s41598-021-90120-x ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Sung-Moon Kim ◽

Eun-Su Lee ◽

Kwon-Wook Chun ◽

Jinung Jin ◽

Min-Cheol Oh

Keyword(s):

Solid State ◽

Integrated Circuits ◽

Phased Array ◽

Phase Distribution ◽

Bragg Reflector ◽

Free Space Optical ◽

Beam Scanning ◽

Optical Links ◽

Polymer Waveguide ◽

Optical Phased Array

AbstractOptical phased array (OPA) devices are being actively investigated to develop compact solid-state beam scanners, which are essential in fields such as LiDAR, free-space optical links, biophotonics, etc. Based on the unique nature of perfluorinated polymers, we propose a polymer waveguide OPA with the advantages of low driving power and high optical throughput. Unlike silicon photonic OPAs, the polymer OPAs enable sustainable phase distribution control during beam scanning, which reduces the burden of beamforming. Moreover, by incorporating a tunable wavelength laser comprising a polymer waveguide Bragg reflector, two-dimensional beam scanning is demonstrated, which facilitates the development of laser-integrated polymeric OPA beam scanners.

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(Gordon E. Moore Medal for Outstanding Achievement in Solid State Science and Technology Award Address) Towards Silicon-Based Photonic Integrated Circuits: The Quest for Compatible Light Sources

ECS Meeting Abstracts ◽

10.1149/ma2019-01/23/1172 ◽

2019 ◽

Keyword(s):

Solid State ◽

Integrated Circuits ◽

Photonic Integrated Circuits ◽

Science And Technology ◽

Light Sources ◽

Outstanding Achievement ◽

Silicon Based ◽

Technology Award

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New Two-Dimensional Solid State Pixel Detectors With Dedicated Front-End Integrated Circuits for X-Ray and Gamma-Ray Imaging

IEEE Transactions on Nuclear Science ◽

10.1109/tns.2009.2022939 ◽

2009 ◽

Vol 56 (4) ◽

pp. 2321-2329 ◽

Cited By ~ 3

Author(s):

Tumay O. Tumer ◽

Victoria B. Cajipe ◽

Martin Clajus ◽

Satoshi Hayakawa ◽

Alexander Volkovskii

Keyword(s):

Solid State ◽

Integrated Circuits ◽

Gamma Ray ◽

Two Dimensional ◽

X Ray ◽

Front End ◽

Pixel Detectors ◽

Gamma Ray Imaging

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Digital Program Control for Iterative Differential Analyzers

SIMULATION ◽

10.1177/003754976400200213 ◽

1964 ◽

Vol 2 (2) ◽

pp. 33-41 ◽

Cited By ~ 3

Author(s):

H.R. Eckes ◽

G.A. Korn

Keyword(s):

Monte Carlo ◽

Solid State ◽

Random Process ◽

Control Unit ◽

State Machine ◽

Program Control ◽

Digital Logic ◽

Process Simulations ◽

The University ◽

Differential Analyzer

This report identifies the timing pulses and sequential digital logic needed for practical control of iterative- differential-analyzer programs and proposes a syste matic notation. Against this background, the design of a very flexible and convenient digital control unit developed for the University of Arizona's new ASTRAC II, an all-solid-state machine employing both "fast" ±10-volt amplifiers capable of iteration rates up to 1 Kc and "slow" ±100-volt amplifiers. A variety of "packaged" iteration routines is pro duced with a minimum of digital-logic patching. Digital-clock circuits can, in particular, control sta tistical evaluation of thousands of Monte-Carlo-type random-process simulations with automatic param eter changes, and will also control displays or analog- digital linkages.

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