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  • 1
    Online Resource
    Online Resource
    Optica Publishing Group ; 2022
    In:  Optics Letters Vol. 47, No. 19 ( 2022-10-01), p. 4933-
    In: Optics Letters, Optica Publishing Group, Vol. 47, No. 19 ( 2022-10-01), p. 4933-
    Abstract: Construction of moiré surface patterns has attracted considerable attention due to the fascinating function of photoelectric manipulation. Holographic inscription offers superposition of two or more sinusoidal gratings to form moiré structures. However, the current material platforms primarily depend on a single process of photoinduced physical property change to build up multicomponent gratings. Herein, we demonstrate a strategy of bidirectional photochemical reaction on mesoporous TiO 2 matrices to form plasmonic nano-Ag moiré fringes. This consists of a photoreduction grating from in situ growth of Ag nanoparticles (NPs) and a photooxidation grating utilizing the Schottky interface of Ag/TiO 2 . The pattern obtained under the superposition of double spatial frequencies exhibits non-equidistant moiré fringes. This Letter provides a pathway for implementing complex surface structures.
    Type of Medium: Online Resource
    ISSN: 0146-9592 , 1539-4794
    Language: English
    Publisher: Optica Publishing Group
    Publication Date: 2022
    detail.hit.zdb_id: 243290-0
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  • 2
    Online Resource
    Online Resource
    Optica Publishing Group ; 2023
    In:  Optics Letters Vol. 48, No. 10 ( 2023-05-15), p. 2515-
    In: Optics Letters, Optica Publishing Group, Vol. 48, No. 10 ( 2023-05-15), p. 2515-
    Abstract: Plasmonic holography is generally regarded as an effective technology for 3D display that meets the requirements of the human visual system. However, low readout stability and large cross talk in the frequency field during a plasmonic photo-dissolution reaction set a huge obstacle for application of color holography. Herein, we propose a new, to the best of our knowledge, route toward producing exciting frequency sensitive holographic-inscription based on plasmonic nano-Ag adaptive growth. Donor-molecule-doped plasmonic polymers on polyethylene terephthalate substrates exhibit wide spectral response range, accurate optical frequency sensing, and bending durability. The resonant plasmonic particles act as optical antennas and transfer energy to surrounding organic matrices for nanocluster production and non-resonant particle growth. The surface relief hologram is also highly dependent on the excitation frequency, so we successfully obtain a controllable cross-periodic structure with amplitude/phase mixed information, as well as color holographic display. This work provides a bright way to high-density storage, information steganography, and virtual/augmented reality.
    Type of Medium: Online Resource
    ISSN: 0146-9592 , 1539-4794
    Language: English
    Publisher: Optica Publishing Group
    Publication Date: 2023
    detail.hit.zdb_id: 243290-0
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  • 3
    Online Resource
    Online Resource
    Institute of Electrical and Electronics Engineers (IEEE) ; 2021
    In:  IEEE Internet of Things Journal Vol. 8, No. 3 ( 2021-2-1), p. 1728-1739
    In: IEEE Internet of Things Journal, Institute of Electrical and Electronics Engineers (IEEE), Vol. 8, No. 3 ( 2021-2-1), p. 1728-1739
    Type of Medium: Online Resource
    ISSN: 2327-4662 , 2372-2541
    Language: Unknown
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Publication Date: 2021
    detail.hit.zdb_id: 2751199-6
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  • 4
    Online Resource
    Online Resource
    Optica Publishing Group ; 2021
    In:  Optics Letters Vol. 46, No. 17 ( 2021-09-01), p. 4296-
    In: Optics Letters, Optica Publishing Group, Vol. 46, No. 17 ( 2021-09-01), p. 4296-
    Abstract: A combination of plasmonic nanoparticles with a semiconductor is a feasible approach to realize multiple color exhibitions. The phenomenon is based on plasmon-driven charge separation between electrons and metal ions, but suitable only for light excitation with different wavelengths. Here, we introduce a color-adjustable method under monochromatic light irradiation. A smart strategy is proposed to construct sandwich structures of a hydrogel coating layer, thermally deposited Ag nanoparticles, and mesoporous T i O 2 matrices. The contacting mode of T i O 2 and nano-Ag at the Schottky interface is strongly dependent on the pore morphology of the oxide. Surface and interface plasmon resonances result in sample color switching from cyan to green and from brown to purple, respectively. The color response ability is further controlled by hydrogel coating, besides the exciting light wavelength. This Letter paves a bright way for colorful displays and information encryption.
    Type of Medium: Online Resource
    ISSN: 0146-9592 , 1539-4794
    Language: English
    Publisher: Optica Publishing Group
    Publication Date: 2021
    detail.hit.zdb_id: 243290-0
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  • 5
    Online Resource
    Online Resource
    Royal Society of Chemistry (RSC) ; 2022
    In:  Journal of Materials Chemistry C Vol. 10, No. 19 ( 2022), p. 7690-7698
    In: Journal of Materials Chemistry C, Royal Society of Chemistry (RSC), Vol. 10, No. 19 ( 2022), p. 7690-7698
    Abstract: Photochromic materials exhibit adjustability of their physical parameters to external light stimulus, regarding as an important carrier of optical memory. However, the reversible photochemical reaction in such a medium inhibits the permanent preservation of data. Herein, we propose to embed photochromic tungsten oxide nanoparticles into two-component polymers of polyvinyl alcohol/polyacrylic acid (PVA/PAA). Thermal relaxation of the coloring state is effectively inhibited in the proton-rich polymer matrix, so as to enhance the life, rate and efficiency of photomemory. Moreover, photochromic response boundary extends from near-ultraviolet to green region, realizing colorful hologram reconstruction. This work provides an important strategy for developing broadband, persistent and flexible photonic devices.
    Type of Medium: Online Resource
    ISSN: 2050-7526 , 2050-7534
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2022
    detail.hit.zdb_id: 2702245-6
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  • 6
    Online Resource
    Online Resource
    Optica Publishing Group ; 2022
    In:  Optics Letters Vol. 47, No. 16 ( 2022-08-15), p. 4127-
    In: Optics Letters, Optica Publishing Group, Vol. 47, No. 16 ( 2022-08-15), p. 4127-
    Abstract: Holography is a feasible route to realize information encryption, which is crucial for the secure processing of massive data. However, the limited number of application channels in a coherent light field hinders advancement in holographic encryption. Herein, we design a serial coding system based on a plasmonic holographic disk utilizing both spin and orbital angular momenta of photons. Anisotropically photo-oxidized metal nanoparticles accurately distinguish the polarization state and topological charge of the vortex light field in holographic reconstruction. Ultra-stable readout of the encrypted holographic grating array is realized after coating a water-soluble polymer onto a large-area nanoparticle film. This work provides an important research strategy for integrated nanodevices for use in high-density memory, all-optical computing, and cryptographic displays.
    Type of Medium: Online Resource
    ISSN: 0146-9592 , 1539-4794
    Language: English
    Publisher: Optica Publishing Group
    Publication Date: 2022
    detail.hit.zdb_id: 243290-0
    Location Call Number Limitation Availability
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