Polarization-Sensitive Super-Resolution Phononic Reconstruction of Nanostructures.
Polarization-Sensitive Super-Resolution Phononic Reconstruction of Nanostructures.
复制标题
纳米结构的极化敏感超分辨率声子重建。
DOI:
10.1021/acsphotonics.1c01607
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发表时间:
2022-06-15
期刊:
影响因子:
7
通讯作者:
Clark, Matt
中科院分区:
文献类型:
--
作者:
Fuentes-Dominguez, Rafael;Naznin, Shakila;La Cavera, Salvatore, III;Cousins, Richard;Perez-Cota, Fernando;Smith, Richard J.;Clark, Matt
In this paper, we show for the first time the polarization-sensitive super-resolution phononic reconstruction of multiple nanostructures in a liquid environment by overcoming the diffraction limit of the optical system (1 μm). By using time-resolved pump–probe spectroscopy, we measure the acoustic signature of nanospheres and nanorods at different polarizations. This enables the size, position, and orientation characterization of multiple nanoparticles in a single point spread function with the precision of 5 nm, 3 nm, and 1.4°, respectively. Unlike electron microscopy where a high vacuum environment is needed for imaging, this technique performs measurements in liquids at ambient pressure, ideal to study the insights of living specimens. This is a potential path toward super-resolution phononic imaging where the acoustic signatures of multiple nanostructures could act as an alternative to fluorescent labels. In this context, phonons also offer the opportunity to extract information about the mechanical properties of the surrounding medium as well as access to subsurface features.
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影响因子:
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作者:
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