&lt;title&gt;Remote imaging in the ultraviolet using intensified and nonintensified CCDs&lt;/title&gt;

Glasgow, Bruce B.; Glaser, Michael S.; Whitley, Robert H.

doi:10.1117/12.175151

Cited by 2 publications

(1 citation statement)

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“…An exposure time of 400 ms further ensures that the dark current noise in the measurements is negligible. Hence the noise of the detector system is mainly governed by the image intensifier [27,28]. The image intensifier contains a wavelength specific photocathode, a micro channel plate (MCP), and a phosphor screen.…”

Section: Noise-in Optical Imaging Systems Two Main Types Of Fundamenmentioning

confidence: 99%

Assessment of a fluorescence-enhanced optical imaging system using the Hotelling observer

Sahu¹,

Joshi²,

Kupinski³

et al. 2006

Opt. Express

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This study represents a first attempt to assess the detection capability of a fluorescence-enhanced optical imaging system as quantified by the Hotelling observer. The imaging system is simulated by the diffusion approximation of the time-dependent radiative transfer equation, which describes near infra-red (NIR) light propagation through a breast phantom of clinically relevant volume. Random structures in the background are introduced using a lumpy-object model as a representation of anatomical structure as well as non-uniform distribution of disease markers. The systematic errors and noise associated with the actual experimental conditions are incorporated into the simulated boundary measurements to acquire imaging data sets. A large number of imaging data sets is considered in order to perform Hotelling observer studies. We find that the signal-to-noise ratio (SNR) of Hotelling observer (i) decreases as the strength of lumpy perturbations in the background increases, (ii) decreases as the target depth increases, and (iii) increases as excitation light leakage decreases, and reaches a maximum for filter optical density values of 5 or higher.

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Section: Noise-in Optical Imaging Systems Two Main Types Of Fundamenmentioning

confidence: 99%

Assessment of a fluorescence-enhanced optical imaging system using the Hotelling observer

Sahu¹,

Joshi²,

Kupinski³

et al. 2006

Opt. Express

View full text Add to dashboard Cite

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Semiconductor near-ultraviolet photoelectronics

Goldberg

1999

Semicond. Sci. Technol.

121

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After a brief review of classification, application and sources of near-ultraviolet (UV) radiation the methods for fabricating UV photodetectors and characteristics of the photoconductive cells, p-n junction structure and Schottky barrier photodiodes are discussed. Characteristics of some light filters used in photodetectors and measuring devices are also reported. Now Si p-n structures are commonly used but Schottky diodes based on wide-gap (GaAsP, GaP, GaN, AlGaN, SiC) semiconductors are very attractive. They are insensitive to the infrared radiation and if necessary simple glass filters can be used for correcting the spectrum in such way that it covers just the near-UV region.

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<title>Remote imaging in the ultraviolet using intensified and nonintensified CCDs</title>

Cited by 2 publications

References 0 publications

Assessment of a fluorescence-enhanced optical imaging system using the Hotelling observer

Assessment of a fluorescence-enhanced optical imaging system using the Hotelling observer

Semiconductor near-ultraviolet photoelectronics

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