Replicating the <i>Cynandra opis</i> Butterfly's Structural Color for Bioinspired Bigrating Color Filters

Cao, Xiaobao; Du, Ying; Guo, Yujia; Hu, Guoping; Zhang, Ming; Wang, Lu; Zhou, Jiangtao; Gao, Quan; Fischer, Peter; Wang, Jing; Stavrakis, Stavros; Mello, Andrew J. de

doi:10.1002/adma.202109161

Cited by 45 publications

(34 citation statements)

References 50 publications

(47 reference statements)

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“…As shown earlier, [40] the periodic NP arrays obtained by the proposed inscription are also capable of producing vibrant and tunable structural colors. Figure 4e, S13, Supporting Information, and Video S2, Supporting Information, show the angle-dependent structural color captured by the photo/ video camera.…”

Section: Plasmonic Nanolithographysupporting

confidence: 61%

Femtosecond Laser Direct‐Write Plasmonic Nanolithography in Dielectrics

Zhu

Gao

et al. 2022

Small Science

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Plasmon‐based devices have founded numerous applications in photonics based on optically excited strong near‐field effect at nanoscale. So far, the large‐area fabrication of periodic plasmonic nanostructures is still challenging due to a small write‐field limitation of lithography‐based techniques, especially for metallic substrates. A novel strategy is proposed to fabricate millimeter‐sized patterns of periodic plasmonic nanostructures inside dielectric materials (glass) through a femtosecond laser direct‐write plasmonic nanolithography approach. Noble metal nanoparticles are formed by the ion implantation in glass and reshaped into a nanowire‐like nanoparticles’ assembly by direct writing with femtosecond laser harnessing plasmonic interaction. As‐designed patterns at nanoscale are inscribed by this type of plasmonic lithography to form wires composed of nanoparticles. Examples for applications, the linear dichroism response, and structural color have been achieved by the plasmonic nanogratings buried inside glass (i.e., at subsurface regions). The work opens a new avenue to manipulate metallic nanoparticles in solids by direct plasmonic nanolithography and offers a reliable implementation of large‐area fabrication of plasmonic nanostructures for diverse range of photonic applications.

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Section: Plasmonic Nanolithographysupporting

confidence: 61%

Femtosecond Laser Direct‐Write Plasmonic Nanolithography in Dielectrics

Zhu

Gao

et al. 2022

Small Science

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“…Recently, sensitive patterned surfaces have attracted increasing attention because of their dynamic micro-/nano-structures which are promising for applications in smart displays 12 – 15 , structural colors 16 – 19 , electronic devices 20 – 22 , microfluidic channels 23 , 24 , and interface engineering 22 , 25 , 26 . Lin’s group first demonstrated polarized light-controlled wetting of patterned surfaces, whose morphology and superhydrophobicity can be in situ regulated 27 .…”

Section: Introductionmentioning

confidence: 99%

Photo-induced stress relaxation in reconfigurable disulfide-crosslinked supramolecular films visualized by dynamic wrinkling

Yan

Chen

et al. 2022

Nat Commun

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Stress relaxation in reconfigurable supramolecular polymer networks is strongly related to intermolecular behavior. However, the relationship between molecular motion and macroscopic mechanics is usually vague, and the visualization of internal stress reflecting precise regulation of molecules remains challenging. Here, we present a strategy for visualizing photo-driven stress relaxation induced by infinitesimal perturbations in the intermolecular exchange reaction via reprogrammable wrinkle patterns. The supramolecular films exhibit visible changes in microscopic wrinkle topography through ultraviolet (UV)-induced dynamic disulfide exchange reaction. In accordance with the trans-scale theoretical models, which quantitatively evaluate the chemical-dependent mechanical stresses in the supramolecular network, the unexposed disordered wrinkles evolved into highly oriented patterns and underwent subsequent mutations after thermal treatment. The stress-sensitive wrinkle macro-patterns can be repetitively written/erased through network topology rearrangement using different stimuli. This strategy provides an approach for visualizing and understanding the molecular behavior from dynamic chemistry to mechanical changes, and directly programming wrinkle patterns with regulated structures.

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“…To circumvent these issues of pigmented color lters, novel optical ltering methods based on structural colors are of great interest recently. Structural color lters inspired by the commonly observed colors in nature, such as morpho butter y wings and chameleon skin, exhibit speci c colors because of the interactions between incident light and periodic micro/nano structures 11,12 . These structural color lters offer advantages including scalability, high resolution, and environmental friendliness 13 .…”

Section: Introductionmentioning

confidence: 99%

Electrically reconfigurable optical color filters using heterogeneous chiral liquid crystals

Choi

Wang²,

Nam

et al. 2022

Preprint

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Optical signals necessitate using optical filters that selectively transmit light with the desired wavelength information. In visual imaging-related optical devices, a color filter acts as an optical wavelength selector to extract the certain color information from the incident light. To overcome the optical limitations of the conventionally commercialized pigmented color filters, such as low efficiency and low color purity, biomimetic structural color filters have recently attracted significant interest. Chiral liquid crystals form a self-organized periodic helical nanostructure and the implemented structural color can be tunable. However, most of chiral liquid crystal color and control of filtered color wavelength have been limited to the reflection rather than optically transmissive color filters. This study proposes an electrically tunable color filter using a heterogeneous chiral liquid crystal structure whose transmissive light can be tuned among different colors (red, green, and blue) with extremely small voltages not exceeding 1.2 V for the first time to the best of our knowledge. To obtain electrical controllability of transmissive colors, electrothermal tuning of chiral liquid crystals is approached. Moreover, analog pixel binning with a heterogeneous chiral liquid crystal color filter in a tetra-layout is investigated. Dynamic and direct binning of the color filter could relieve the quality degradation of the captured images under low-light illumination in image sensors and higher image resolutions. Considering the highly desired requirement of low driving voltage in practical devices, the tunable heterogeneous CLC color filter proposed in this study is expected to facilitate the advancement of future electro-optical color filter applications.

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Replicating the Cynandra opis Butterfly's Structural Color for Bioinspired Bigrating Color Filters

Cited by 45 publications

References 50 publications

Femtosecond Laser Direct‐Write Plasmonic Nanolithography in Dielectrics

Femtosecond Laser Direct‐Write Plasmonic Nanolithography in Dielectrics

Photo-induced stress relaxation in reconfigurable disulfide-crosslinked supramolecular films visualized by dynamic wrinkling

Electrically reconfigurable optical color filters using heterogeneous chiral liquid crystals

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