Shuzuoka University publishes an 2013 PhD thesis "A Study on Time-Resolved CMOS Image Sensors with Draining-Only Modulation Pixels for Fluorescence Lifetime Imaging Microscopy" by Zhuo Li. The pixel concept is shown below:
Concept of two-stage charge transfer pixel and draining only modulation (DOM) pixel. |
DOM pixel layout |
Photo charge modulation and sequential readout in the DOM pixel |