The PSD transfer function

Bakker, M. de; Verbeek, P.W.; Steenvoorden, G.K.; Young, IT

doi:10.1109/16.974773

Cited by 9 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For simulation and measurement purposes focused light pulses with a wavelength of 850 nm, duration of 1 µs and spot size of 280 µm were used. The cause for the slopes of rise and fall time is due to time constants of the device capacitance as well as the photogeneration mechanism itself [1]. To support the simulated results, we conducted measurements of rise and fall times on a physical device.…”

mentioning

confidence: 89%

See 1 more Smart Citation

Simulation and measurement of short infrared pulses on silicon position sensitive device

Krapohl¹,

Esebamen²,

Nilsson³

et al. 2011

J. Inst.

View full text Add to dashboard Cite

Lateral position sensitive devices (PSD) are important for triangulation, alignment and surface measurements as well as for angle measurements. Large PSDs show a delay on rising and falling edges when irradiated with near infra-red light [1]. This delay is also dependent on the spot position relative to the electrodes. It is however desirable in most applications to have a fast response. We investigated the responsiveness of a Sitek PSD in a mixed mode simulation of a two dimensional full sized detector. For simulation and measurement purposes focused light pulses with a wavelength of 850 nm, duration of 1 µs and spot size of 280 µm were used. The cause for the slopes of rise and fall time is due to time constants of the device capacitance as well as the photogeneration mechanism itself [1]. To support the simulated results, we conducted measurements of rise and fall times on a physical device. Additionally, we quantified the homogeneity of the device by repositioning a spot of light from a pulsed ir-laser diode on the surface area.

show abstract

mentioning

confidence: 89%

“…

…”

mentioning

confidence: 99%

Simulation and measurement of short infrared pulses on silicon position sensitive device

Krapohl¹,

Esebamen²,

Nilsson³

et al. 2011

J. Inst.

View full text Add to dashboard Cite

show abstract

“…This affords the sensor more energy to make tracking proportionally faster. The lateral-effect PSD linearity, sensitivity [30], and transfer function [31] have been characterized. Its electronic and mechanical behavior and its application to spectroscopic optical systems [32] as well as tracking and displacement sensing [33] has been studied in depth.…”

Section: Measuring Image Motion Using Psdsmentioning

confidence: 99%

Platform motion blur image restoration system

2012

View full text Add to dashboard Cite

Platform motion blur is a common problem for airborne and space-based imagers. Photographs taken by hand or from moving vehicles in low-light conditions are also typically blurred. Correcting image motion blur poses a formidable problem since it requires a description of the blur in the form of the point spread function (PSF), which in general is dependent on spatial location within the image. Here we introduce a computational imaging system that incorporates optical position sensing detectors (PSDs), a conventional camera, and a method to reconstruct images degraded by spatially variant platform motion blur. A PSD tracks the movement of light distributions on its surface. It leverages more energy collection than a single pixel since it has a larger area making it proportionally faster. This affords it high temporal resolution as it measures the PSF at a specific location in the image field. Using multiple PSDs, a spatially variant PSF is generated and used to reconstruct images.

show abstract