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Computer-Generated Holographic Nanoprinting
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DOI：10.1002/lpor.202200448.png)
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摘要
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Metasurface-assisted nanoprinting is usually enabled by spectrum-modulation and/or polarization-modulation at the subwavelength scale. The spectrum-modulated nanoprint works under unpolarized white-light and requires the minimalist observation conditions, but it can hardly modulate light brightness; the polarization-modulated nanoprint can continuously control light brightness, but it requires complex and precise polarization control both at the input and output ends to decode a nanoprinting image. In this study, computer-generated holographic nanoprinting is designed and experimentally demonstrated, enabled by Pancharatnam-Berry phase modulation of light, which has both the advantages of the two types of nanoprintings while avoiding their disadvantages. Specifically, a general platform is built to implement single-channel/multichannel/color nanoprinting in a holography way, which presents its unique characteristics like incoherent light illumination, arbitrary brightness modulation, polarization insensitivity, and zero-dispersion. A periodic phase is further attached to the target object wave during the holographic interference pattern generation, and the reconstructed nanoprinting image only appears in the zero-order diffraction direction, thus making the information delivery safer. This study can empower advanced research on metasurface-based nanoprinting, which can find its markets in ultracompact image-display, data storage, information multiplexing, and many other related fields.
Keyword:
holography
metasurfaces
nanoprinting
Pancharatnam-Berry phase
structural-color
期刊
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IF:
10
论文数:
3.7K
被引数:
2.1W
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