Noninterleaved Metasurface for (26-1) Spin- and Wavelength-Encoded Holograms.
Lei JinZhaogang DongShengtao MeiYe Feng YuZhun WeiZhenying PanSoroosh Daqiqeh RezaeiXiangping LiArseniy I KuznetsovYuri S KivsharJoel K W YangCheng-Wei QiuPublished in: Nano letters (2018)
Nanostructured metasurfaces demonstrate extraordinary capabilities to control light at the subwavelength scale, emerging as key optical components to physical realization of multitasked devices. Progress in multitasked metasurfaces has been witnessed in making a single metasurface multitasked by mainly resorting to extra spatial freedom, for example, interleaved subarrays, different angles. However, it imposes a challenge of suppressing the cross-talk among multiwavelength without the help of extra spatial freedom. Here, we introduce an entirely novel strategy of multitasked metasurfaces with noninterleaved single-size Si nanobrick arrays and minimalist spatial freedom demonstrating massive information on 6-bit encoded color holograms. The interference between electric dipole and magnetic dipole in individual Si nanobricks with in-plane orientation enables manipulating six bases of incident photons simultaneously to reconstructed 6-bit wavelength- and spin-dependent multicolor images. Those massively reconstructed images can be distinguished by pattern recognition. It opens an alternative route for integrated optics, data encoding, security encryption, and information engineering.
Keyphrases
- room temperature
- deep learning
- convolutional neural network
- optical coherence tomography
- single molecule
- health information
- density functional theory
- cardiovascular disease
- high resolution
- physical activity
- mental health
- electronic health record
- high speed
- healthcare
- public health
- type diabetes
- artificial intelligence
- mass spectrometry
- machine learning
- flow cytometry
- social media
- big data
- molecularly imprinted
- tandem mass spectrometry
- simultaneous determination