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Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering
นักวิจัย : Du, Luping , Lei, Dang Yuan , Yuan, Guanghui , Fang, Hui , Zhang, Xi , Wang, Qian , Tang, Dingyuan , Min, Changjun , Maier, Stefan A. , Yuan, Xiaocong
คำค้น : DRNTU::Engineering::Electrical and electronic engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Du, L., Lei, D. Y., Yuan, G., Fang, H., Zhang, X., Wang, Q., et al. (2013). Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering. Scientific reports, 3, 1-6. , 2045-2322 , http://hdl.handle.net/10220/18406 , http://dx.doi.org/10.1038/srep03064
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Scientific reports
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Mapping near-field profiles and dynamics of surface plasmon polaritons is crucial for understanding their fundamental optical properties and designing miniaturized photonic devices. This requires a spatial resolution on the sub-wavelength scale because the effective polariton wavelength is shorter than free-space excitation wavelengths. Here by combining total internal reflection excitation with surface-enhanced Raman scattering imaging, we mapped at the sub-wavelength scale the spatial distribution of the dominant perpendicular component of surface plasmon fields in a metal nanoparticle-film system through spectrally selective and polarization-resolved excitation of the vertical gap mode. The lateral field-extension at the junction, which is determined by the gap-mode volume, is small enough to distinguish a spot size ~0.355λ0 generated by a focused radially polarized beam with high reproducibility. The same excitation and imaging schemes are also used to trace near-field nano-focusing and interferences of surface plasmon polaritons created by a variety of plasmon lenses.

บรรณานุกรม :
Du, Luping , Lei, Dang Yuan , Yuan, Guanghui , Fang, Hui , Zhang, Xi , Wang, Qian , Tang, Dingyuan , Min, Changjun , Maier, Stefan A. , Yuan, Xiaocong . (2556). Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Du, Luping , Lei, Dang Yuan , Yuan, Guanghui , Fang, Hui , Zhang, Xi , Wang, Qian , Tang, Dingyuan , Min, Changjun , Maier, Stefan A. , Yuan, Xiaocong . 2556. "Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Du, Luping , Lei, Dang Yuan , Yuan, Guanghui , Fang, Hui , Zhang, Xi , Wang, Qian , Tang, Dingyuan , Min, Changjun , Maier, Stefan A. , Yuan, Xiaocong . "Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Du, Luping , Lei, Dang Yuan , Yuan, Guanghui , Fang, Hui , Zhang, Xi , Wang, Qian , Tang, Dingyuan , Min, Changjun , Maier, Stefan A. , Yuan, Xiaocong . Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.