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614 results on '"Yin, Xiaobo"'

158. Large-scale Day-time Radiative Cooling Metafilm

Author

Zhai, Yao, primary, Ma, Yaoguang, additional, David, Sabrina N., additional, Zhao, Dongliang, additional, Lou, Runnan, additional, Wu, Chuanwei, additional, Tan, Gang, additional, Yang, Ronggui, additional, and Yin, Xiaobo, additional

Published
2017
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176. Interacting Dark Resonances with Plasmonic Meta-Molecules

Author

CALIFORNIA UNIV BERKELEY NANOSCALE SCIENCE AND ENGINEERING CENTER, Jha, Pankaj K, Mrejen, Michael, Kim, Jeongmin, Wu, Chihhui, Yin, Xiaobo, Wang, Yuan, Zhang, Xiang, CALIFORNIA UNIV BERKELEY NANOSCALE SCIENCE AND ENGINEERING CENTER, Jha, Pankaj K, Mrejen, Michael, Kim, Jeongmin, Wu, Chihhui, Yin, Xiaobo, Wang, Yuan, and Zhang, Xiang

Abstract

Dark state physics has led to a variety of remarkable phenomena in atomic physics, quantum optics, and information theory. Here, we investigate interacting dark resonance type physics in multi-layered plasmonic meta-molecules. We theoretically demonstrate that these plasmonic meta-molecules exhibit sub-natural spectral response, analogous to conventional atomic four-level configuration, by manipulating the evanescent coupling between the bright and dark elements (plasmonic atoms). Using cascaded coupling, we show nearly 4-fold reduction in linewidth of the hybridized resonance compared to a resonantly excited single bright plasmonic atom with same absorbance. In addition, we engineered the geometry of the meta-molecules to realize efficient intramolecular excitation transfer with nearly 80%, on resonant excitation, of the total absorption being localized at the second dark plasmonic atom. An analytical description of the spectral response of the structure is presented with full electrodynamics simulations to corroborate our results. Such multilayered meta-molecules can bring a new dimension to higher quality factor plasmonic resonance efficient excitation transfer, wavelength demultiplexing, and enhanced non-linearity at nanoscale., Published in Applied Physics Letters, v105 article 111109, 2014.

Published
2014

177. Axial plane optical microscopy.

Author

Li, Tongcang, Li, Tongcang, Ota, Sadao, Kim, Jeongmin, Wong, Zi Jing, Wang, Yuan, Yin, Xiaobo, Zhang, Xiang, Li, Tongcang, Li, Tongcang, Ota, Sadao, Kim, Jeongmin, Wong, Zi Jing, Wang, Yuan, Yin, Xiaobo, and Zhang, Xiang

Abstract

We present axial plane optical microscopy (APOM) that can, in contrast to conventional microscopy, directly image a sample's cross-section parallel to the optical axis of an objective lens without scanning. APOM combined with conventional microscopy simultaneously provides two orthogonal images of a 3D sample. More importantly, APOM uses only a single lens near the sample to achieve selective-plane illumination microscopy, as we demonstrated by three-dimensional (3D) imaging of fluorescent pollens and brain slices. This technique allows fast, high-contrast, and convenient 3D imaging of structures that are hundreds of microns beneath the surfaces of large biological tissues.

Published
2014

182. Axial Plane Optical Microscopy

Author

Li, Tongcang, primary, Ota, Sadao, additional, Kim, Jeongmin, additional, Wong, Zi Jing, additional, Wang, Yuan, additional, Yin, Xiaobo, additional, and Zhang, Xiang, additional

Published
2014
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192. Brownian motion of tethered nanowires

Author

Ota, Sadao, primary, Li, Tongcang, additional, Li, Yimin, additional, Ye, Ziliang, additional, Labno, Anna, additional, Yin, Xiaobo, additional, Alam, Mohammad-Reza, additional, and Zhang, Xiang, additional

Published
2014
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