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Article
Optics
Peng Sun et al.
Summary: Metalenses are important in miniaturized and integrated optical imaging, but designing efficient broadband achromatic metalenses is challenging. This study proposes a phase manipulation approach to design a broadband achromatic metalens with high efficiency. An achromatic polarization-independent metalens is successfully designed for the wavelength range of 450 nm to 1400 nm with over 70% focusing efficiency.
CHINESE OPTICS LETTERS
(2022)
Article
Optics
Yulong Fan et al.
Summary: The use of a genetic algorithm-generated metalens can effectively address the issues of phototoxicity and low signal-to-noise ratio in light-sheet fluorescence microscopy, enhancing the axial resolution and signal-to-noise ratio of the light sheet, and extending its depth of focus. This innovative technology may play an important role in large-scale bioimaging applications without the need for mechanical dithering.
LASER & PHOTONICS REVIEWS
(2022)
Editorial Material
Optics
Jacob Engelberg et al.
Article
Nanoscience & Nanotechnology
Yuan Luo et al.
Summary: Light-sheet fluorescent microscopy (LSFM) is the leading technique for in vivo imaging in the fields of disease, medicine, and cell biology research. This study demonstrates the successful integration of a nanophotonic meta-lens as the illumination component for LSFM, addressing the challenges of high image resolution and optical sectioning. With the meta-lens, the LSFM system complexity is significantly reduced, enabling multicolor fluorescent imaging of live biological specimens with cellular resolution.
Article
Multidisciplinary Sciences
Ming Lun Tseng et al.
Summary: A metalens that can generate and focus VUV light simultaneously has been successfully created by the research team. The metalens is ultracompact and phase-matching free, making it a useful tool for developing low-loss VUV components and increasing the accessibility of VUV light.
Article
Optics
Yan Liu et al.
Summary: A meta-objective based on cascaded metalenses is proposed to achieve high-resolution microobservations, allowing clear visualization of single cell contours in biological tissues.
PHOTONICS RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Soon Wei Daniel Lim et al.
Summary: This study introduces an alternative metasurface geometry based on high aspect ratio via-holes, designing and characterizing metalenses that focus incident infrared light into a diffraction-limited spot. By engineering both transmitted phase and amplitude profiles simultaneously, the impedance match between the incident and transmitted waves is improved, leading to increased focusing efficiency. The holey platform enhances the accessible aspect ratio of optical nanostructures while maintaining mechanical robustness, paving the way for a generation of high aspect ratio ruggedized flat optics.
Article
Optics
Maoxiong Zhao et al.
Summary: Metalenses have shown superior performance and abundant applications as a new optical element, but the direct measurement of their phase distribution is still a challenge. A newly developed interferometric imaging phase measurement system allows for the direct measurement of the phase distribution of a metalens, enabling further analysis of its performance and characteristics.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Multidisciplinary Sciences
Ethan Tseng et al.
Summary: The research introduces a neural nano-optics imager that learns the physical structure of metasurfaces and a neural feature-based image reconstruction algorithm to improve image quality. Experimentally verified, the proposed method achieves an order of magnitude lower reconstruction error than existing approaches. This imager combines the widest field-of-view for full-color metasurface operation and simultaneously achieves the largest demonstrated aperture of 0.5 mm at an f-number of 2.
NATURE COMMUNICATIONS
(2021)
Review
Optics
Jacob Engelberg et al.
Summary: This paper reviews the performance limits of flat lenses, including achromatic diffractive lenses and metalenses. It shows that these lenses can support a wide spectral range but have limitations in focusing power and broadband response.
Article
Optics
Hanmeng Li et al.
Summary: The design of large-scale, high-numerical-aperture, and broadband achromatism is a challenge in metalens research, but focusing on RGB lights' achromatism can improve efficiency. Implementing a bandpass filter in a metalens results in good RGB achromatism and improved signal-to-noise ratio and resolution in imaging experiments.
PHOTONICS RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Yuan Luo et al.
Summary: A dielectric Moire metalens is designed, fabricated, and implemented for fluorescence imaging with varifocal capabilities, utilizing two complementary phase metasurfaces with adjustable focal length through mutual angle tuning. The compact design may have important applications in clinical fluorescence microscopy and endoscopy.
Article
Optics
Ti Sun et al.
Summary: The study presents a polarization-insensitive achromatic metalens (PIA-ML) based on computational wavefront coding for broadband imaging. By coding simple nanostructures, the focal depths at different wavelengths overlap, removing the need for linear phase dispersion and enabling ultra-broadband achromatic imaging with simple-shaped nanostructures.
Article
Optics
Monjurul Meem et al.
Summary: By allowing the phase in the image plane to be a free parameter, it is possible to correct chromatic aberrations over an extremely large bandwidth using a single diffractive surface, leading to thinner, lighter, and simpler imaging systems with improved performance.
Article
Multidisciplinary Sciences
Yujie Wang et al.
Summary: This study demonstrates a polarization-insensitive, broadband titanium dioxide achromatic metalens for near-infrared biological imaging applications, which compensates for dispersion in the wavelength range of 650-1000 nm. The metalens shows high average efficiency and numerical aperture.
NATURE COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Hanyu Zheng et al.
Summary: The paper proposes a novel manufacturing method for metasurfaces based on self-assembly of nanospheres combined with grayscale lithography, enabling large-scale metasurfaces with nonperiodic phase profiles in a cost-effective manner. This approach demonstrates diffraction-limited focusing and holograms on a series of large-scale metalenses, potentially opening new doors for cost-effective and large-scale fabrication of a wide range of metasurface-based optics.
Article
Nanoscience & Nanotechnology
Mu Ku Chen et al.
Summary: The article introduces an imaging system for light-field edge detection based on a gallium nitride achromatic meta-lens array, capable of one-dimensional to three-dimensional edge detection. With 60x60 achromatic meta-lenses operating in the visible range, the system captures and computes all light field information, providing focused edge images with depth estimation through image rendering. The multidimensional edge detection system offers advantages such as broadband detection and device miniaturization, showing potential applications in biological diagnosis and robotic vision.
Article
Nanoscience & Nanotechnology
Fatih Balli et al.
Summary: The research team designed and fabricated ultra-broadband achromatic metalenses operating from visible into shortwave infrared wavelengths. The hybrid 3D architecture allowed realization in low refractive index materials, with prototyping done using two-photon lithography and mass production using molding. The experimental results showed excellent performance of the metalenses, demonstrating the feasibility of using low-refractive index materials and two-photon lithography for metalenses operating at visible wavelengths.
Article
Multidisciplinary Sciences
Zhaoyi Li et al.
Summary: The study demonstrated the design of millimeter-scale diameter, high-NA, submicron-thin metasurface lenses and their application in a virtual reality system.
Article
Nanoscience & Nanotechnology
Daniel Andren et al.
Article
Optics
Federico Presutti et al.
Article
Optics
Leonid L. Doskolovich et al.
Article
Physics, Applied
Monjurul Meem et al.
APPLIED PHYSICS LETTERS
(2020)
Article
Multidisciplinary Sciences
Abdoulaye Ndao et al.
NATURE COMMUNICATIONS
(2020)
Article
Multidisciplinary Sciences
F. Balli et al.
NATURE COMMUNICATIONS
(2020)
Article
Optics
Beibei Xu et al.
ADVANCED PHOTONICS
(2020)
Article
Optics
Zhi-Bin Fan et al.
LIGHT-SCIENCE & APPLICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Joon-Suh Park et al.
Article
Nanoscience & Nanotechnology
Ren Jie Lin et al.
NATURE NANOTECHNOLOGY
(2019)
Article
Multidisciplinary Sciences
Wei Ting Chen et al.
NATURE COMMUNICATIONS
(2019)
Article
Nanoscience & Nanotechnology
Shuming Wang et al.
NATURE NANOTECHNOLOGY
(2018)
Article
Nanoscience & Nanotechnology
Wei Ting Chen et al.
NATURE NANOTECHNOLOGY
(2018)
Article
Multidisciplinary Sciences
Nabil Mohammad et al.
SCIENTIFIC REPORTS
(2018)
Article
Optics
Monjurul Meem et al.
Article
Optics
Sajan Shrestha et al.
LIGHT-SCIENCE & APPLICATIONS
(2018)
Article
Multidisciplinary Sciences
Shuming Wang et al.
NATURE COMMUNICATIONS
(2017)
Article
Optics
Ehsan Arbabi et al.
Article
Computer Science, Software Engineering
Yifan Peng et al.
ACM TRANSACTIONS ON GRAPHICS
(2016)
Article
Materials Science, Coatings & Films
Evgeniy Shkondin et al.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2016)
Article
Multidisciplinary Sciences
Mohammadreza Khorasaninejad et al.
Article
Multidisciplinary Sciences
Peng Wang et al.
SCIENTIFIC REPORTS
(2016)
Article
Multidisciplinary Sciences
Francesco Aieta et al.
