LWIR heterodyne HgCdTe detectors

Boltar, K. O.; Bourlakov, I. D.; Golovin, S. V.; Lognikov, V. E.; Mansvetov, N. G.

doi:10.1117/12.407711

Cited by 2 publications

(3 citation statements)

References 1 publication

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“…LWIR detection was being researched as an extension of the progress made in SWIR and MWIR previously. These devices were usually small to mid-sized FPAs (e.g., 384 × 288) operated at liquid nitrogen temperatures and focused on using MBE growth to achieve the level of composition control necessary for precise LWIR regime absorption [28,46,47]. Research focused on silicon substrates looked to address cost concerns that could arise from typical MCT substrates (most commonly CdZnTe).…”

Section: Bulk Detectorsmentioning

confidence: 99%

Progress in Infrared Photodetectors Since 2000

Downs

Vandervelde

2013

Sensors

222

110

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The first decade of the 21st-century has seen a rapid development in infrared photodetector technology. At the end of the last millennium there were two dominant IR systems, InSb- and HgCdTe-based detectors, which were well developed and available in commercial systems. While these two systems saw improvements over the last twelve years, their change has not nearly been as marked as that of the quantum-based detectors (i.e., QWIPs, QDIPs, DWELL-IPs, and SLS-based photodetectors). In this paper, we review the progress made in all of these systems over the last decade plus, compare the relative merits of the systems as they stand now, and discuss where some of the leading research groups in these fields are going to take these technologies in the years to come.

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Section: Bulk Detectorsmentioning

confidence: 99%

Progress in Infrared Photodetectors Since 2000

Downs

Vandervelde

2013

Sensors

222

110

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“…The self-regulating electric method for measuring the frequency characteristics of high-speed PD using the segmental frequency up-conversion based on low-speed photon sampling is proposed in [4]. The modulation method for measuring parameters of PD operating in the heterodyne regime with wavelength 10.6 m is described in [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…For solving this task, paper [8][9][10][11][12] proposes a matrix of piezoelectric resonators that can be preferably applied for measuring the distribution of power flux density of relatively lowpower lasers. The measurement method described in [5,[13][14][15][16][17] is suitable for solving the specified task (problem) as applied for high-power lasers. A brief review of methods and tools for solving this problem provides evidence of its high topicality.…”

Section: Introductionmentioning

confidence: 99%

Acousto-Optical Receiver of an Obstruction Passive Radar System

Rustamov,

Kerimov,

Mammedov

et al. 2023

A.I.S.

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The subject of research in the article is the passive radar system of a warship. The purpose of the work was to review the characteristics use of the acousto-optical receiver in the new passive radar system of the warship, to investigate the peculiarities of acoustooptic effect and the relevant synthesis of methods and tools for measuring the photodetector photoelectric characteristics and, in addition, to investigate the energy-and-geometric parameters of laser radiation Justification. It is shown that the transition, impulse and frequency characteristics are taken as the main means to determine the operating and technical parameters of the acousto-optical delay line. It is not possible to unambiguously extrapolate these characteristics to the known models of the characteristics of the acousto-optic radar receiver created on AODL. Research results. In the context of this postulate, mathematical models of the main characteristics of AODL were developed. On the basis of the synchronous compensation pulse obstacles applied to the passive radar acousto-optic receiver on military ships, the full compensation of the obstacles is determined for the effective reception of signals from the acousto-optic receiver. In radar stations (radar), the main attention is focused on the statistical properties of the useful signal and passive obstacles, the speed (frequency) of the signal passing through the passive obstacle and the space-time differences. The recommendations. These features are recommended to be used only in special cases where the target is outside the reflectors for informational duration, amplitude and differences between passive obstacles, obstacle silencing and signal separation. Conclusion. Applying the full attenuation of the band filter and synphase barrier organizers, whose frequency characteristics do not depend on the tuning frequency, it is possible to provide full compensation of obstacles during the effective reception of signals by the acousto-optic receiver in the passive radar system of warships based on the proposed method for high resistance to obstacles, pulse obstacle compensation.

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LWIR heterodyne HgCdTe detectors

Cited by 2 publications

References 1 publication

Progress in Infrared Photodetectors Since 2000

Progress in Infrared Photodetectors Since 2000

Acousto-Optical Receiver of an Obstruction Passive Radar System

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