title: Superplastic Formation of Metal Nanostructure Arrays with Ultrafine Gaps.
abstract: Laser shock compression of plasmonic nanoarrays results in ultrafine tunable line-gaps at sub-10 nm scale by collaborative superplastic flow. From molecular dynamics analysis, the metal nanostructures change from crystalline to liquid-like metals, expanding quickly but never fusing together, even when they are very close. This technique enables good tunability of surface plasmon resonances and significantly enhanced local fields.
authors: School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA.|Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA.
authors: Yaowu
authors: Y
authors: Hu
authors: Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA.|School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA.
authors: Yi
authors: Y
authors: Xuan
authors: Bindley Bioscience Centre, Purdue Center for Cancer Research, Purdue University, West Lafayette, IN, 47907, USA.
authors: Xiaolei
authors: X
authors: Wang
authors: School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA.|Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA.
authors: Biwei
authors: B
authors: Deng
authors: School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA.
authors: Mojib
authors: M
authors: Saei
authors: School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA.|Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA.
authors: Shengyu
authors: S
authors: Jin
authors: Bindley Bioscience Centre, Purdue Center for Cancer Research, Purdue University, West Lafayette, IN, 47907, USA.
authors: Joseph
authors: J
authors: Irudayaraj
authors: School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA. gjcheng@purdue.edu.|Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA. gjcheng@purdue.edu.
authors: Gary J
authors: GJ
authors: Cheng
keywords: laser shock; nanoantennas; nanogaps; post-fabrication tuning; superplastic; surface enhanced Raman scattering