Stimulated Emission Depletion Nanoscopic 3D Optical Data Storage

摘要本奖项依据2009年美国复苏与再投资法案（公法111-5）设立。该计划的目的是研究高密度、纳米级写一次读多（WORM） 3D光学数据存储（ODS）的串联双光子吸收（2PA）受激发射耗尽（STED）工艺。本研究的知识价值在于对双光子STED在三维空间定位光酸生产和亚80nm体素形成（数据编码）方面的应用和局限性有了基本的了解，理解了双光子STED在质子化2PA荧光团的亚80nm体素3D读出方面的应用和局限性，并开发了一个集成的基于双光子STED的双光子3D ODS原型。拟议研究的更广泛影响是深远的，影响到美国社会的几乎所有方面。光数据存储（ODS）的跨学科性质，加上它的无所不在，提供了一个独特的机会来教育和培训本科生、研究生、初中和高中学生，以及他们的老师和公众，在当前和未来的ODS技术的基础科学。参与本项目的本科生和研究生将获得对先进光子学、光物理学和材料化学的综合理解。传统上在科学和工程领域代表性不足的学生将参与这项跨学科研究，为培养高技能和多样化的劳动力提供便利。拟议的研究具有变革性，有望在3D光学数据存储方面取得突破，提供前所未有的3D光学数据存储密度（高达每立方毫米1tb）。本研究所获得的知识将为未来的光子材料和系统设计提供原则。

AbstractThis award is funded under the American recovery and Reinvestment Act of 2009 (Public Law 111-5).The objective of this program is to investigate tandem two-photon absorption (2PA) stimulated emission depletion (STED) processes for high density, nanoscopic write-once read-many (WORM) 3D optical data storage (ODS).The intellectual merit is developing a fundamental understanding of the application and limitations of two-photon STED for 3D spatially-localized photoacid production and sub-80 nm voxel formation (data encoding), understanding the application and limitations of two-photon STED for sub-80 nm voxel 3D readout of a protonated 2PA fluorophore, and developing an integrated double STED-based two-photon 3D ODS prototype.The broader impacts of the proposed research are far reaching, affecting nearly all aspects of US society. The interdisciplinary nature of optical data storage (ODS), coupled with its omnipresence, presents a unique opportunity to educate and train undergraduate, graduate, middle, and high school students, along with their teachers, and the general public, in the science that underlies current and future ODS technologies. Undergraduate and graduate students involved in this project will gain an integrated understanding of advanced photonics, photophysics, and materials chemistry. Students that are traditionally underrepresented in science and engineering will be engaged in this interdisciplinary research, facilitating the preparation of a highly skilled and diverse workforce.The proposed research is transformative and expected to lead to a break though in 3D optical data storage, affording unprecedented 3D optical data storage densities (up to 1 terabyte per cubic mm). Knowledge gained in this research will provide the tenets for future photonic materials and systems design.