Polymer Semiconductor Focal Volume Arrays for Advanced Multidimensional Imaging
Brendan Timothy O'Connor
Michael James Escuti
Project runs from 08/15/2018 to 07/31/2021
This proposal will develop the first semi-transparent 3-dimensional (3D) volumetric imaging array by leveraging the unique advantages offered by emerging organic photovoltaic (OPV) detectors. These new detector-based degrees of freedom will enable an extra dimension onto which information can be modulated, enabling more compact, robust, and capable optical imaging sensors and systems. Organic semiconductors are advantageous to realize this concept due to their ability to tune transmittance, polarization sensitivity, and spectral response, enabling detector placement arbitrarily within a lens system’s focal volume. These new degrees of freedom will be used to investigate new detector capabilities, optical systems, and image processing algorithms. The objectives of this proposal are to: (1) Establish an optical model of both 2D and 3D polarization sensitive organic photodetector (P-OPD) arrays; (2) Design a proof of concept 2D and 3D P-OPD arrays and readout circuitry; (3) Leverage the model to optimize spectral- and polarimetric- imaging array using birefringent filtering techniques; (4) Create algorithms for image reconstruction and calibration; and (5) Incorporate methods to create multi-layer volumetric 3D P-OPD arrays with liquid crystal layers.