Multimode vibrational strong coupling in direct laser written mid-IR plasmonic MIM nano-patch antennas

作     者：NICHOLAS V.PROSCIA MICHAEL A.MEEKER NICHOLAS SHARAC FRANK K.PERKINS CHASE T.ELLIS PAUL D.CUNNINGHAM JOSEPH G.TISCHLER NICHOLAS V.PROSCIA;MICHAEL A.MEEKER;NICHOLAS SHARAC;FRANK K.PERKINS;CHASE T.ELLIS;PAUL D.CUNNINGHAM;JOSEPH G.TISCHLER

作者机构：NRC Postdoc residing at U.S.Naval Research LaboratoryWashingtonD.C.20375USA U.S.Naval Research LaboratoryWashingtonD.C.20375USA Current address:Rigetti ComputingFreemontCalifornia 94538USA Current address:Homer L.Dodge Department of Physics and AstronomyThe University of OklahomaNormanOklahoma 73019USA 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2023年第11卷第12期

页      面：2136-2148页

核心收录：

学科分类：080901[工学-物理电子学] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 070204[理学-等离子体物理] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Office of Naval Research(N0001421WX01075) U.S.Naval Research Laboratory Base Programs(1P76,1P77) 

主　　题：coupling vibrational shaped 

摘      要：Strong coupling of mid-infrared(mid-IR)vibrational transitions to optical cavities provides a means to modify and control a material’s chemical reactivity and offers a foundation for novel chemical detection ***,the relatively large volumes of the mid-IR photonic cavities and weak oscillator strengths of vibrational transitions restrict vibrational strong coupling(VSC)studies and devices to large ensembles of molecules,thus representing a potential limitation of this nascent ***,we experimentally and theoretically investigate the mid-IR optical properties of 3D-printed multimode metal-insulator-metal(MIM)plasmonic nanoscale cavities for enabling strong light-matter interactions at a deep subwavelength *** observe strong vibration-plasmon coupling between the two dipolar modes of the L-shaped cavity and the carbonyl stretch vibrational transition of the polymer *** cavity mode volume is half the size of a typical square-shaped MIM geometry,thus enabling a reduction in the number of vibrational oscillators to achieve strong *** resulting three polariton modes are well described by a fully coupled multimode oscillator model where all coupling potentials are *** 3D printing technique of the cavities is a highly accessible and versatile means of printing arbitrarily shaped submicron-sized mid-IR plasmonic cavities capable of producing strong light–matter interactions for a variety of photonic or photochemical ***,similar MIM structures fabricated with nanoscopic voids within the insulator region could constitute a promising microfluidic plasmonic cavity device platform for applications in chemical sensing or photochemistry.