Comparative determination of atomic boron and carrier concentration in highly boron doped nano-crystalline diamond

Taylor, Andrew; Ashcheulov, Petr; Hubı́k, P.; Weiss, Zdeněk; Klimša, Ladislav; Kopeček, Jaromı́r; Hrabovský, Ján; Veis, Martin; Lörinčı́k, Jan; Elantyev, Ivan

doi:10.1016/j.diamond.2023.109837

Cited by 12 publications

(3 citation statements)

References 34 publications

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“…While absorption in silicon in the visible range prevents us from demonstrating such tuning mechanisms for colors other than red, this can still be achieved using materials with lower absorption, such as silicon nitride [47] and diamond. [48] The second type of optical response tuning is demonstrated with a metasurface M2 (Figure 3b), for which the change in surrounding refractive index between air and water leads to a redshift of the lattice resonance from λ = 680 nm in air to λ = 700 nm in water (Figure 3b,d). The equivalent of Figure 3 with the static optical response tuneability of the metasurfaces M3 and M4 is reported in Figure S11, Supporting Information.…”

Section: Static Optical Tuneabilitymentioning

confidence: 99%

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Dynamic Nonlocal Dielectric Metasurfaces: Tuning Collective Lattice Resonances via Substrate–Superstrate Permittivity Contrast

Allayarov,

Evlyukhin,

Roth

et al. 2023

Advanced Photonics Research

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Contrary to local resonances of single nanostructures, collective (or nonlocal) resonances in periodic metasurfaces, such as surface lattice resonances (SLRs), can significantly enhance light–matter interaction, leading to higher spectral selectivity. The dynamic control of such nonlocal response represents an emerging field of research. While tuning of SLRs has been demonstrated in plasmonic metasurfaces, the use of dielectric metasurfaces provides additional conditions to control both reflectance and transmittance, with minimum absorption effects. A close‐to‐homogeneous environment is usually required to guarantee the excitation of SLRs. Here, we propose theoretically and demonstrate experimentally a practical strategy for the tuning of SLRs in dielectric metasurfaces when an arbitrary index mismatch is considered between substrate and superstrate. The approach is based on a generalized lattice sum theory that accounts for the presence of a substrate. Dynamic tuning of the SLRs in silicon metasurfaces placed on a substrate is achieved with a changeable superstrate via an optofluidic process. Two tuning mechanisms are revealed corresponding to shifting and damping of the SLR, depending on the superstrate–substrate refractive index contrast. The demonstrated dynamic manipulation of transmission and reflection may be exploited in dielectric metasurfaces for tunable spectral selectivity, sensing, or novel display technologies.

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Section: Static Optical Tuneabilitymentioning

confidence: 99%

Section: Experimental Demonstrationmentioning

confidence: 99%

Dynamic Nonlocal Dielectric Metasurfaces: Tuning Collective Lattice Resonances via Substrate–Superstrate Permittivity Contrast

Allayarov,

Evlyukhin,

Roth

et al. 2023

Advanced Photonics Research

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“…The relationship (αhν) 1/m is plotted as a function of the incident Diamond (containing only σ bonds) has an energy gap of 5.5 eV (225 nm), corresponding to the σ → σ* transitions [3,7], wherein it is an indirect band-gap [3]. With the existence of defects and/or doping [51,52], the energy of the band-gap may be decreased. The appearance of sp 2 bonds in the diamond structure results in the formation of strongly localized π states, and thus the possibility of π → π* electron transitions.…”

Section: Optical Properties Of the A-c Filmsmentioning

confidence: 99%

Optical Properties of Amorphous Carbon Thin Films Fabricated Using a High-Energy-Impulse Magnetron-Sputtering Technique

Skowronski,

Chodun,

Trzcinski

et al. 2023

Materials

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This paper reports the results of amorphous carbon thin films fabricated by using the gas-impulse-injection magnetron-sputtering method and differing the accelerating voltage (1.0–1.4 kV). The obtained layers were investigated using Raman spectroscopy, X-ray photoelectron spectroscopy (XRD), and spectroscopic ellipsometry (SE). The analysis of the Raman and XPS spectra point to the significant content of sp3 hybridization in the synthesized materials (above 54–73%). The refractive index of the films is very high—above 2.45 in the infrared spectral range. The band-gap energy (determined using the inversed-logarithmic-derivative method) depends on the discharging voltage and is in the range from 1.58 eV (785 nm) to 2.45 eV (506 nm). Based on the obtained results, we have elaborated a model explaining the a-C layers’ formation process.

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Boron-doped diamond electrodes: examining the effect of doping level on the degradation of pharmaceuticals

Pražáková,

Fischer,

Taylor

et al. 2024

Monatsh Chem

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Comparative determination of atomic boron and carrier concentration in highly boron doped nano-crystalline diamond

Cited by 12 publications

References 34 publications

Dynamic Nonlocal Dielectric Metasurfaces: Tuning Collective Lattice Resonances via Substrate–Superstrate Permittivity Contrast

Dynamic Nonlocal Dielectric Metasurfaces: Tuning Collective Lattice Resonances via Substrate–Superstrate Permittivity Contrast

Optical Properties of Amorphous Carbon Thin Films Fabricated Using a High-Energy-Impulse Magnetron-Sputtering Technique

Boron-doped diamond electrodes: examining the effect of doping level on the degradation of pharmaceuticals

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