000207343 001__ 207343
000207343 005__ 20181203023835.0
000207343 0247_ $$2doi$$a10.1364/Ol.40.000669
000207343 022__ $$a0146-9592
000207343 02470 $$2ISI$$a000349848400059
000207343 037__ $$aARTICLE
000207343 245__ $$aToward direct light-to-digital conversion using a pulse-driven hybrid MOS-PN photodetector
000207343 260__ $$bOptical Society of America$$c2015$$aWashington
000207343 269__ $$a2015
000207343 300__ $$a4
000207343 336__ $$aJournal Articles
000207343 520__ $$aIn this Letter, a direct light-to-digital converter based on an MOS-PN photodetector driven by pulsed voltage is presented. The objective is to avoid any analog-to-digital or time-to-digital conversion and, thereby, to pave the way for a new generation of fully digital imaging sensors with reduced complexity, area, and power consumption. Moreover, the pulsed voltage operation allows for a significant reduction of the dark level. The concept is validated by a theoretical study and TCAD simulations. A first prototype fabricated in 0.18 mu m CMOS technology is presented. The experimental results under various light conditions show that the pulsed voltage improves the light sensitivity by several orders of magnitude. (C) 2015 Optical Society of America
000207343 700__ $$0245510$$g175792$$aSallin, Denis
000207343 700__ $$aKoukab, Adil
000207343 700__ $$aKayal, Maher$$g105540$$0240539
000207343 773__ $$j40$$tOptics Letters$$k4$$q669-672
000207343 909C0 $$xU11978$$0252315$$pELAB
000207343 909CO $$pSTI$$particle$$ooai:infoscience.tind.io:207343
000207343 917Z8 $$x105540
000207343 937__ $$aEPFL-ARTICLE-207343
000207343 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000207343 980__ $$aARTICLE