Title

Modal Analysis Of Noise In Signal-Processing-In-The-Element Detectors

Keywords

Charge transport; Infrared detectors; Noise power spectral density; Signal processing in the element

Abstract

Detector noise limits the performance of signal-processing-in-the-element detectors. For detectors to be optimized, an expression for the signal and noise must be found. The results of the eigenmode solution to the charge transport problem are used to derive the power spectral density of the noise in analytic form. This result is then coordinated with a similarly obtained modulation transfer function to yield a frequency-dependent signal-to-noise ratio 1SNR2. The SNR is used to reveal performance trends over several ranges of detector parameters. The most important result is that the contact boundary velocity strongly controls the SNR. The optimum SNR condition occurs when the contacts are not perfectly ohmic but exhibit a partially blocking behavior. © 1996 Optical Society of America.

Publication Date

2-1-1996

Publication Title

Applied Optics

Volume

35

Issue

4

Number of Pages

566-571

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/AO.35.000566

Socpus ID

0012145324 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0012145324

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