Toward Opto-phononics: photo-excitation and control of electrons and phonons in nanostructures

走向光声学：纳米结构中电子和声子的光激发和控制

• 批准号: 341629-2012
• 负责人: Nojeh, Alireza
• 金额: $ 2.4万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=527397
• 关键词: Toward; Opto; phononics; photo; excitation

When a beam of light strikes a bulk conductor, the generated heat spreads to a wide area. In stark contrast, the applicant's research group has recently discovered a phenomenon called "Heat Trap," consisting of strong localization of light-induced heat in nanostructured conductors known as carbon nanotube forests. The illuminated spot can act as a thermal insulator, yet remain electrically conductive. This combination of properties has been sought for decades and has far-reaching implications for many areas ranging from clean energy to information technologies.

当一束光照射在大块导体上时，产生的热量会扩散到很大的区域。与此形成鲜明对比的是，申请人的研究小组最近发现了一种被称为“热陷阱”的现象，该现象由被称为碳纳米管森林的纳米结构导体中的光致热的强烈局部化组成。照明点可以作为热绝缘体，但仍保持导电。几十年来，人们一直在寻求这种特性的组合，并对从清洁能源到信息技术的许多领域产生了深远的影响。