Reduced angle sensitivity of structural coloration on an industrial aluminium platform

Odessey, Rachel; Shen, Tianyi; Oller, Declan; He, De; Kim, Jin Ho; Xu, Jimmy; Pacifici, Domenico

doi:10.1111/cote.12466

Cited by 2 publications

(1 citation statement)

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“…Constructive and destructive interferences happen as a result of light reflected off the top and bottom interfaces of the cavity. The thickness of the cavity needs to be adjusted to fit integer multiples of half wavelengths for constructive interference, leading to peaks in transmittance or absorptance. − …”

Section: Structural Color Generation Methods and Relevant Applicationsmentioning

confidence: 99%

Nanophotonic Structural Colors

et al. 2020

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Structural colors traditionally refer to colors arising from the interaction of light with structures with periodicities on the order of the wavelength. Recently, the definition has been broadened to include colors arising from individual resonators that can be subwavelength in dimension, e.g., plasmonic and dielectric nanoantennas. For instance, diverse metallic and dielectric nanostructure designs have been utilized to generate structural colors based on various physical phenomena, such as localized surface plasmon resonances (LSPRs), Mie resonances, thin-film Fabry-Pérot interference, and Rayleigh-Wood diffraction anomalies from 2D periodic lattices and photonic crystals. Here, we provide our perspective of the key application areas where structural colors really shine, and other areas where more work is needed. We review major classes of materials and structures employed to generate structural coloration and highlight the main physical resonances involved.

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Section: Structural Color Generation Methods and Relevant Applicationsmentioning

confidence: 99%

Nanophotonic Structural Colors

et al. 2020

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Surface Enhanced Raman Spectroscopy Application of Aluminum Nanofilm in Improving the Performance of Optical Telescopes

Wu,

Zhao,

2024

Journal of Nanoelectronics and Optoelectronics

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Optical telescopes play a crucial role in exploring the universe, and understanding various aspects of the Earth and the universe. However, traditional optical telescopes have problems with high noise in the optical signal, which is not conducive to material analysis. To improve the performance of optical telescopes, this study utilized surface enhanced Raman spectroscopy technology of aluminum nanofilms for spectral analysis. The experimental results demonstrated that the amorphous aluminum film prepared by UV annealing exhibited Raman spectral enhancement effect at different laser wavelengths. The optimal effect can be achieved by using excitation light with a wavelength of 670 nm. The transmittance curve modified by aluminum nanofilm met the requirements of a day blind ultraviolet detector. Moreover, the bandgap energy gap was approximately 5 eV. The detector with a 7 nm aluminum deposition had the best performance improvement. The modification of aluminum nanoparticles improves the photoelectric response and reduces the time constant of the slow response stage. This study provides a foundation for further exploration and application of surface enhanced Raman spectroscopy technology in improving the performance of optical telescopes.

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Reduced angle sensitivity of structural coloration on an industrial aluminium platform

Cited by 2 publications

References 20 publications

Nanophotonic Structural Colors

Nanophotonic Structural Colors

Surface Enhanced Raman Spectroscopy Application of Aluminum Nanofilm in Improving the Performance of Optical Telescopes

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