Moving Picture Of Three-Dimensional Image Of Femtosecond Light Pulse Propagating in Three-Dimensional Space

Awatsuji, Yasuhiro; Kubota, Toshihiro

doi:10.1063/1.2812300

Cited by 1 publication

(1 citation statement)

References 17 publications

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“…Innovative technologies in this category have been proposed [17–19]. Frame intervals of several picoseconds [18] to hundreds of femtoseconds [19] have been achieved. However, silicon image sensors have the significant advantage of providing compact and user-friendly imaging systems.…”

Section: Introductionmentioning

confidence: 99%

Toward One Giga Frames per Second — Evolution of in Situ Storage Image Sensors

Etoh

Son

Yamada

et al. 2013

Sensors

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The ISIS is an ultra-fast image sensor with in-pixel storage. The evolution of the ISIS in the past and in the near future is reviewed and forecasted. To cover the storage area with a light shield, the conventional frontside illuminated ISIS has a limited fill factor. To achieve higher sensitivity, a BSI ISIS was developed. To avoid direct intrusion of light and migration of signal electrons to the storage area on the frontside, a cross-sectional sensor structure with thick pnpn layers was developed, and named “Tetratified structure”. By folding and looping in-pixel storage CCDs, an image signal accumulation sensor, ISAS, is proposed. The ISAS has a new function, the in-pixel signal accumulation, in addition to the ultra-high-speed imaging. To achieve much higher frame rate, a multi-collection-gate (MCG) BSI image sensor architecture is proposed. The photoreceptive area forms a honeycomb-like shape. Performance of a hexagonal CCD-type MCG BSI sensor is examined by simulations. The highest frame rate is theoretically more than 1Gfps. For the near future, a stacked hybrid CCD/CMOS MCG image sensor seems most promising. The associated problems are discussed. A fine TSV process is the key technology to realize the structure.

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