Polymer Semiconductor Focal Volume Arrays for Advanced Multidimensional Imaging

用于高级多维成像的聚合物半导体焦体积阵列

• 批准号: 1809753
• 负责人: Michael Kudenov
• 金额: $ 38.5万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-15 至 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1809753&HistoricalAwards=false
• 关键词: Polymer; Semiconductor; Focal; Volume; Arrays

Non-Technical:Consumer digital cameras form an image using inorganic materials like silicon. These materials are attractive as they are durable, efficient, and low cost. However, they only detect light in a single layer. Multi-layer structures offer significant advantages in terms of improved color reproduction, but at increased cost and reduced image resolution. In this project, we will investigate new multi-layer cameras that can offer improved color reproduction without sacrificing image resolution. The multi-layer camera concept will also be studied for capturing more than the three colors of a typical camera (red, green, and blue). This will be done by using holographic lenses and by manipulating the polarization of light as it passes through the different layers. Finally, the multi-layer detector scheme will be used to improve so called "light field" imaging, in which a single camera lens can be made to capture depth information, enabling improved "digital refocusing" capabilities. Both graduate and undergraduate student researchers will be involved in this research. The project will also facilitate outreach activities to local high school students and online tutorials will be disseminated to encourage participation from avid hobbyists and students.Technical: This project will develop the first three-dimensional (3D) volumetric imaging array by leveraging the unique advantages offered by emerging organic photovoltaic detectors. These new detector-based degrees of freedom will permit 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 spectral response, polarization sensitivity, and transmittance, 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 and fabricate proof of concept 2D and 3D P-OPD arrays and readout circuitry; (3) Create algorithms for image reconstruction and calibration; (4) Leverage the model to optimize spectral- and polarimetric- imaging array using birefringent filtering techniques; and (5) Incorporate methods to create multi-layer volumetric 3D P-OPD arrays with liquid crystal layers. Merit is found in (1) The optimization strategies and algorithms needed to design 3D volumetric arrays; (2) Use of polarized light for detector-level spectral sensitivity; (3) Establishing new calibration algorithms and image reconstruction techniques; and (4) Quantifying the multiplexing trade space that can be achieved with these 3D arrays, given conventional and emerging optical devices and lens systems.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

非技术：消费者数码相机使用硅等无机材料形成图像。这些材料很有吸引力，因为它们耐用，高效和低成本。但是，它们仅检测单层的光。多层结构在改善颜色繁殖方面具有显着优势，但成本增加和图像分辨率减少。在这个项目中，我们将研究新的多层摄像机，这些相机可以提供改进的颜色繁殖而无需牺牲图像分辨率。还将研究多层摄像机概念，用于捕获比典型相机的三种颜色（红色，绿色和蓝色）的更多颜色。这将通过使用全息镜片和操纵光线穿过不同层的极化来完成。最后，多层检测器方案将用于改进所谓的“光场”成像，其中可以制作单个相机镜头以捕获深度信息，从而可以改进“数字重新聚焦”功能。研究生和本科生研究人员都将参与这项研究。该项目还将促进当地高中生的外展活动，在线教程将被散布以鼓励狂热的业余爱好者和学生的参与。技术：该项目将通过利用新兴的有机光伏检测器提供的独特优势来开发第一个三维（3D）体积成像阵列。这些新的基于探测器的自由度将允许额外的维度，可以调节信息，从而使更紧凑，健壮且能够强大的光学成像传感器和系统更加紧凑。有机半导体是有利的，因为它们能够调整光谱响应，极化敏感性和透射率，从而使探测器放置在镜头系统的焦距中，因此实现了这一概念。这些新的自由度将用于研究新的检测器功能，光学系统和图像处理算法。该提案的目标是：（1）建立2D和3D极化敏感有机光电探测器（P-OPD）阵列的光学模型； （2）设计和捏造概念证明2D和3D P-OPD阵列以及读数电路； （3）创建用于图像重建和校准的算法； （4）利用模型使用双重滤波技术优化光谱和偏光成像阵列； （5）结合了创建具有液晶层的多层体积3D P-OPD阵列的方法。在（1）设计3D体积阵列所需的优化策略和算法中找到了功绩； （2）使用偏振光来检测级光谱灵敏度； （3）建立新的校准算法和图像重建技术； （4）鉴于传统和新兴的光学设备和镜头系统可以通过这些3D阵列来量化可以实现的多路复用贸易空间。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛的审查标准通过评估来进行评估的。

项目成果

Thermal stabilization of a fiber-based channeled spectropolarimetry

• DOI: 10.1117/1.oe.58.12.124102
• 发表时间: 2019-12
• 期刊: Optical Engineering
• 影响因子: 1.3
• 作者: A. Altaqui;M. Kudenov

Organic-based photodetectors for multiband spectral imaging

用于多波段光谱成像的有机光电探测器

• DOI: 10.1364/ao.417069
• 发表时间: 2021
• 期刊: Applied Optics
• 影响因子: 1.9
• 作者: Altaqui, Ali;Kolbas, Robert M.;Escuti, Michael J.;O’Connor, Brendan T.;Kudenov, Michael W.
• 通讯作者: Kudenov, Michael W.

Hybrid spatial–temporal Mueller matrix imaging spectropolarimeter for high throughput plant phenotyping

用于高通量植物表型分析的混合时空穆勒矩阵成像分光计

• DOI: 10.1364/ao.483870
• 发表时间: 2023
• 期刊: Applied Optics
• 影响因子: 1.9
• 作者: Kudenov, Michael W.;Krafft, Danny;Scarboro, Clifton G.;Doherty, Colleen J.;Balint-Kurti, Peter
• 通讯作者: Balint-Kurti, Peter

Phase-shifting interferometry in fiber-based channeled spectropolarimetry

基于光纤的通道光谱偏振测量中的相移干涉测量

• DOI: 10.1117/12.2529975
• 发表时间: 2019
• 期刊: Polarization Science and Remote Sensing IX
• 作者: Altaqui, Ali;Kudenov, Michael W.
• 通讯作者: Kudenov, Michael W.

Multistatic fiber-based system for measuring the Mueller matrix bidirectional reflectance distribution function

用于测量 Mueller 矩阵双向反射率分布函数的多基地光纤系统

• DOI: 10.1364/ao.470608
• 发表时间: 2022
• 期刊: Applied Optics
• 影响因子: 1.9
• 作者: Scarboro, Clifton G.;Doherty, Colleen J.;Balint-Kurti, Peter J.;Kudenov, Michael W.
• 通讯作者: Kudenov, Michael W.