Mr. Zvi Kopolovich Profile

Zvi Kopolovich

Vice President/Research & Development at SCD SemiConductor Devices

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Publications (6)

Proceedings Article | 14 May 2007 Paper

Non-equilibrium free carriers overcome cooling need in quantum IR detectors

Valery Garber, Alex Fayer, Nimrod Shuall, Zvi Kopolovich, Emmanuel Baskin

Proceedings Volume 6542, 65421K (2007) https://doi.org/10.1117/12.723159

KEYWORDS: Sensors, Photons, Absorption, Electrons, Silicon, Thermography, Composites, Infrared detectors, Quantum IR detectors, Infrared sensors

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Proceedings Article | 17 May 2006 Paper

VO_x-based uncooled microbolometric detectors: recent developments at SCD

A. Fraenkel, U. Mizrahi, L. Bikov, A. Adin, E. Malkinson, A. Giladi, D. Seter, Z. Kopolovich

Proceedings Volume 6206, 62061C (2006) https://doi.org/10.1117/12.664020

KEYWORDS: Sensors, Single crystal X-ray diffraction, Staring arrays, Camera shutters, Annealing, Readout integrated circuits, Sun, Cameras, Electronics, Bolometers

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Proceedings Article | 21 October 2005 Paper

Uncooled detectors optimized for unattended applications

E. Malkinson, A. Fraenkel, U. Mizrahi, M. Ben-Ezra, L. Bikov, A. Adin, Y. Zabar, D. Seter, Z. Kopolovich

Proceedings Volume 5978, 597816 (2005) https://doi.org/10.1117/12.632803

KEYWORDS: Sensors, Staring arrays, Camera shutters, Single crystal X-ray diffraction, Temperature metrology, Target detection, Unattended ground sensors, Target recognition, Unmanned aerial vehicles, Bolometers

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SCD has recently presented an uncooled detector product line based on the high-end VO_x bolometer technology. The first FPA launched, named BIRD - short for Bolometer Infra Red Detector, is a 384x288 (or 320x240) configurable format with 25μm pitch. Typical NETD values for these FPAs range at 50mK with an F/1 aperture and 60 Hz frame rate. These detectors also exhibit a relatively fast thermal time constant of approximately 10 msec, as reported previously. In this paper, the special features of BIRD optimized for unattended sensor applications are presented and discussed. Unattended surveillance using sensors on unattended aerial vehicles (UAV's) or micro air vehicles (MAV's) , unattended ground vehicles (UGV's) or unattended ground sensor (UGS) are growing applications for uncooled detectors. This is due to their low power consumption, low weight, negligible acoustic noise and reduced price. On the other hand, uncooled detectors are vulnerable to ambient drift. Even minor temperature fluctuations are manifested as fixed pattern noise (FPN). As a result, frequent, shutter operation must be applied, with the risk of blocking the scenery in critical time frames and loosing information for various scenarios. In order to increase the time span between shutter operations, SCD has incorporated various features within the FPA and supporting algorithms. This paper will discuss these features and present some illustrative examples. Minimum power consumption is another critical issue for unattended applications. SCD has addressed this topic by introducing the "Power Save" concept. For very low power applications or for TEC-less (Thermo-Electric-Cooler) applications, the flexible dilution architecture enables the system to operate the detector at a number of formats. This, together with a smooth frame rate and format transition capability turns SCD's uncooled detector to be well suited for unattended applications. These issues will be described in detail as well.

Proceedings Article | 29 September 2005 Paper

Advanced features of SCD's uncooled detectors

A. Fraenkel, U. Mizrahi, L. Bykov, A. Adin, E. Malkinson, Y. Zabar, D. Seter, Y. Gebil, Z. Kopolovich

Proceedings Volume 5957, 59570N (2005) https://doi.org/10.1117/12.621041

KEYWORDS: Sensors, Camera shutters, Staring arrays, Single crystal X-ray diffraction, Readout integrated circuits, Sensor performance, Cameras, Bolometers, Electronics, Nonuniformity corrections

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Proceedings Article | 31 May 2005 Paper

Uncooled detector development program at SCD

U. Mizrahi, A. Fraenkel, L. Bykov, A. Giladi, A. Adin, E. Ilan, N. Shiloah, E. Malkinson, Y. Zabar, D. Seter, R. Nakash, Z. Kopolovich

Proceedings Volume 5783, (2005) https://doi.org/10.1117/12.607445

KEYWORDS: Staring arrays, Sensors, Single crystal X-ray diffraction, Camera shutters, Readout integrated circuits, Cameras, Detector development, Optical calibration, Image resolution, Bolometers

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