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Self-organized nanograting: a plasmonic dichroic polarizer.

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Title: Self-organized nanograting: a plasmonic dichroic polarizer.
Authors: Nahal, Arashmid1,2 (AUTHOR) nahal@ut.ac.ir, Kiasatfar, Ozra1 (AUTHOR)
Source: Applied Physics A: Materials Science & Processing. May2025, Vol. 131 Issue 5, p1-11. 11p.
Subjects: Laser beams, Silver clusters, Optical polarization, Linear dichroism, Silver nanoparticles
Abstract: Self-organized periodic nanostructures (SPNs) have attracted significant interest due to their unique optical properties. This article examines SPNs as dichroic polarizers that selectively transmit or absorb light based on polarization. We explore the underlying mechanisms, fabrication techniques, and potential applications of SPNs. The SPNs are generated in a photosensitive AgCl-Ag thin film, by irradiating it with a linearly polarized He–Ne laser beam. The relocation of Ag nanoparticles into the minima of the interference pattern results in the formation of SPNs.The chain-like arrangement of metallic granular lines of silver clusters displays dichroism, polarizing the probe beam. The quality of the produced plasmonic dichroic polarizer depends on the exposure time. Thus, one can consider the exposure time as a control parameter for the quality of the product. Our research indicates dichroic polarizers, created using elliptically or circularly polarized laser beams, are less effective than those produced by a linearly polarized laser beam. The plasmonic dichroic polarizer, made using a linearly polarized laser beam with a 30-min exposure time, exhibited the highest polarization percentage (approximately 70%) for the probe beam at a wavelength of 525 nm, which is very close to the surface plasmon resonance peak of silver nanoparticles placed on AgCl substrate. [ABSTRACT FROM AUTHOR]
Copyright of Applied Physics A: Materials Science & Processing is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="JN" term="%22Applied+Physics+A%3A+Materials+Science+%26+Processing%22">Applied Physics A: Materials Science & Processing</searchLink>. May2025, Vol. 131 Issue 5, p1-11. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Laser+beams%22">Laser beams</searchLink><br /><searchLink fieldCode="DE" term="%22Silver+clusters%22">Silver clusters</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+polarization%22">Optical polarization</searchLink><br /><searchLink fieldCode="DE" term="%22Linear+dichroism%22">Linear dichroism</searchLink><br /><searchLink fieldCode="DE" term="%22Silver+nanoparticles%22">Silver nanoparticles</searchLink>
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  Data: Self-organized periodic nanostructures (SPNs) have attracted significant interest due to their unique optical properties. This article examines SPNs as dichroic polarizers that selectively transmit or absorb light based on polarization. We explore the underlying mechanisms, fabrication techniques, and potential applications of SPNs. The SPNs are generated in a photosensitive AgCl-Ag thin film, by irradiating it with a linearly polarized He–Ne laser beam. The relocation of Ag nanoparticles into the minima of the interference pattern results in the formation of SPNs.The chain-like arrangement of metallic granular lines of silver clusters displays dichroism, polarizing the probe beam. The quality of the produced plasmonic dichroic polarizer depends on the exposure time. Thus, one can consider the exposure time as a control parameter for the quality of the product. Our research indicates dichroic polarizers, created using elliptically or circularly polarized laser beams, are less effective than those produced by a linearly polarized laser beam. The plasmonic dichroic polarizer, made using a linearly polarized laser beam with a 30-min exposure time, exhibited the highest polarization percentage (approximately 70%) for the probe beam at a wavelength of 525 nm, which is very close to the surface plasmon resonance peak of silver nanoparticles placed on AgCl substrate. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Applied Physics A: Materials Science & Processing is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00339-025-08479-x
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      – Code: eng
        Text: English
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      – SubjectFull: Optical polarization
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      – SubjectFull: Linear dichroism
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      – SubjectFull: Silver nanoparticles
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              Text: May2025
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