Collaborative Research: Combining Infrared Spectroscopy and Mass Spectrometry on a Nanophotonic Platform for Chemical Sensing

合作研究：在纳米光子平台上结合红外光谱和质谱进行化学传感

• 批准号: 1200406
• 负责人: Robert Opila
• 金额: $ 23.57万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-04-01 至 2015-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1200406&HistoricalAwards=false
• 关键词: Collaborative; Research; Combining; Infrared; Spectroscopy

The research objective of this award is to explore on-chip infrared spectroscopy and mass spectrometry for sensitive detection and identification of gas molecules. Both detection mechanisms will be studied using a photonic crystal device which serve simultaneously as a nanophotonic cavity and a nanomechanical resonator. Using this photonic crystal structure, the proposed research will study cavity-enhanced optomechanical resonance phenomena and infrared light-molecule interaction mechanisms in the nanoscale. In this program, new material systems, photonic device designs and fabrication technologies will also be investigated for the strategically important mid-infrared wave band.The chipscale, dual-mode sensor created in this program will have an immediate impact in the fields of nanophotonics, nanomechanics, and chem/bio sensing if successful. Synergistically combining nanomechanical and nanophotonic detection methods on a common device platform will overcome the specificity and sensitivity bottlenecks limiting on-chip sensing technologies: the dual-mode sensor measures molecular weight and characteristic infrared absorption fingerprints of analyte, thus enabling recognition and quantification of chemical species with high accuracy; cavity-enhanced interactions in the nanoscale also lead to improved limit of detection potentially down to a single-molecule level. In addition, innovations in mid-infrared materials and devices made through this program will fill the missing link in long-wave integrated optoelectronics critical to imaging, spectroscopy, and free-space communications. The participating undergraduate and graduate researchers will benefit from the cross-cutting collaboration between the two groups and summer exchanges with national laboratories to extend their technical experiences. The program will also expand K-12 initiatives at both participating universities through high school student mentoring and new optical science class module development.

该奖项的研究目标是探索用于敏感检测和鉴定气体分子的片上红外光谱和质谱。这两种检测机制将使用同时作为纳米光子腔和纳米机械谐振器的光子晶体装置进行研究。利用这种光子晶体结构，本研究将在纳米尺度上研究腔增强光力学共振现象和红外光-分子相互作用机制。在这个项目中，新的材料系统，光子器件的设计和制造技术也将研究具有战略意义的中红外波段。如果成功的话，这个芯片级的双模传感器将在纳米光子学、纳米力学和化学/生物传感领域产生直接影响。将纳米力学和纳米光子检测方法协同结合在一个共同的设备平台上，将克服限制片上传感技术的特异性和灵敏度瓶颈：双模传感器测量被分析物的分子量和特征红外吸收指纹，从而实现对化学物质的高精度识别和定量；在纳米尺度上，空腔增强的相互作用也导致了检测极限的提高，有可能降低到单分子水平。此外，中红外材料和器件的创新将填补对成像、光谱和自由空间通信至关重要的长波集成光电子技术的缺失环节。参与的本科生和研究生研究人员将受益于两个小组之间的跨领域合作，以及与国家实验室的夏季交流，以扩展他们的技术经验。该项目还将通过高中生指导和新的光学科学课程模块开发，在两所参与大学扩展K-12计划。