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Reconfigurable dual...
Reconfigurable dual-mode optical encryption enabled by block copolymer photonic crystal with micro-imprinted holographic metasurface
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- Mun, Seungsoo (författare)
- Yonsei Univ, South Korea
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- Park, Taehyun (författare)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Oh, Jin Woo (författare)
- Yonsei Univ, South Korea
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- Kim, Taebin (författare)
- Yonsei Univ, South Korea
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- Lee, Kyuho (författare)
- Yonsei Univ, South Korea
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- Lee, Chang Eun (författare)
- Yonsei Univ, South Korea
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- Kim, Hoyeon (författare)
- Yonsei Univ, South Korea
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- Park, Jong Woong (författare)
- Yonsei Univ, South Korea
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- Jeon, Seungbae (författare)
- Yonsei Univ, South Korea
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- Ryu, Du Yeol (författare)
- Yonsei Univ, South Korea
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- Cheon, Sanghoon (författare)
- Elect & Telecommun Res Inst ETRI, South Korea
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- Kim, Yong-Hae (författare)
- Elect & Telecommun Res Inst ETRI, South Korea
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- Lee, Seung-Yeol (författare)
- Kyungpook Natl Univ, South Korea
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- Hwang, Chi-Sun (författare)
- Elect & Telecommun Res Inst ETRI, South Korea
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- Kim, Joo Yeon (författare)
- Elect & Telecommun Res Inst ETRI, South Korea
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- Park, Cheolmin (författare)
- Yonsei Univ, South Korea
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(creator_code:org_t)
- ELSEVIER SCI LTD, 2023
- 2023
- Engelska.
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Ingår i: Materials Today. - : ELSEVIER SCI LTD. - 1369-7021 .- 1873-4103. ; 70, s. 44-56
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Dual-mode optical encryption based on holographic metasurfaces and color components is of great attraction because of their enhanced information security and storage; however, the realization of independently as well as reversibly encodable holographic metasurfaces and color components remains unreported. Herein, we present reconfigurable dual-mode encryptions of structural colors (SC) and holograms, achieved through stimuli-responsive block copolymer (BCP) photonic crystals (PCs) with micro-imprinted holographic metasurfaces. Holographic images appear when the micro-imprinted BCP PCs, consisting of self-assembled alternating lamellae of two dielectrics, are exposed to an incident laser. A characteristic SC develops in the visible range when the imprinted film is immersed in a liquid agent that can swell one of the dielectrics, allowing for dual-mode holographic and SC encodings in the solid and liquid states, respectively. The dual-mode optical encoding is reconfigured. The holographic image can be erased and replaced with another micropattern, while preserving the SC. Moreover, an SC, set by crosslinking of the swellable lamellae, is reset by chemical de-crosslinking and subsequent transient re-crosslinking, enabling the SC reconfigurability of the BCP PC film. A prototype of a high-security reconfigurable dual encryption has been developed, wherein true information is decrypted when holographic passwords are confirmed with full-color visible SC passwords.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Reconfigurable dual-mode encryption; Self-assembled photonic crystals; Block copolymer structural colors; Micro-imprinted holographic metasurfaces; High-security information encryption
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Mun, Seungsoo
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Park, Taehyun
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Oh, Jin Woo
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Kim, Taebin
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Lee, Kyuho
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Lee, Chang Eun
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visa fler...
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Kim, Hoyeon
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Park, Jong Woong
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Jeon, Seungbae
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Ryu, Du Yeol
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Cheon, Sanghoon
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Kim, Yong-Hae
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Lee, Seung-Yeol
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Hwang, Chi-Sun
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Kim, Joo Yeon
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Park, Cheolmin
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