Transparent conductive oxides for the epsilon-near-zero Tamm plasmon polaritons

Bikbaev, Rashid G.; Vetrov, S. Ya.; Timofeev, Ivan V.

doi:10.1364/josab.36.002817

Cited by 11 publications

(2 citation statements)

References 44 publications

(44 reference statements)

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“…In addition to the spectral control offered by CdO, replacing the noble metal with n:CdO also makes the fabrication process CMOS compatible, potentially permitting integrated applications. Notably, our approach can also be applied to other doped materials, such as doped III-V semiconductors 37 and other transparent conducting oxides 38 .…”

Section: Cdo: the Enabling Component For Our Tpp-ws-emsmentioning

confidence: 99%

Deterministic inverse design of Tamm plasmon thermal emitters with multi-resonant control

Nolen

Nordlander

et al. 2021

Nat. Mater.

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Wavelength-selective thermal emitters (WS-EMs) are of high interest due to the lack of cost-effective, narrow-band light sources in the mid-to long-wave infrared. Cost-effective WS-EMs can be realized via Tamm plasmon polariton (TPP) structures supported by distributed Bragg reflectors (DBRs) on metal layers, however, optimizing TPP-WS-EMs is challenging because of the large number of parameters to optimize.To address this challenge, we use stochastic gradient descent (SGD) to optimize TPP-WS-EMs composed of an aperiodic DBR deposited on doped cadmium oxide (CdO) plasmonic films. While the SGD-optimized, aperiodic DBR offers extensive spectral control, the material choice, i.e., plasma-frequency-tunable doped CdO, enables the design capabilities not accessible with noble metals. Here, the individual layer thickness and carrier density of CdO are optimized by our SGD inverse design strategy. The resultant experimental designs demonstrate TPP-WS-EMs exhibiting isolated, high-Q (narrow bandwidth), and structures featuring multiple emission bands for applications such as free-space communications and gas sensing. Furthermore, we illustrate the deterministic design capability within the infrared, such as user-designated Q-factors (28 -10,127) at a desired frequency, multi-band emitters with user-defined Q, and the ability to directly match arbitrary chemical absorption spectra. Thus, the combination of our SGD inverse design and the broadly tunable plasma frequency of CdO enables lithography-free, CMOS-compatible, and wafer-scale solutions for WS-EMs with unprecedented spectral control.

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Section: Cdo: the Enabling Component For Our Tpp-ws-emsmentioning

confidence: 99%

Deterministic inverse design of Tamm plasmon thermal emitters with multi-resonant control

Nolen

Nordlander

et al. 2021

Nat. Mater.

View full text Add to dashboard Cite

show abstract

Section: Cdo: the Enabling Component For Our Tpp-ws-emsmentioning

confidence: 99%

Deterministic Inverse Design of Lithography-Free, Wavelength-Selective Tamm Plasmon Thermal Emitters

Nolen

Nordlander

et al. 2021

Preprint

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Wavelength-selective thermal emitters (WS-EMs) are of high interest due to the lack of cost-effective, narrow-band light sources in the mid- to long-wave infrared. Cost-effective WS-EMs can be realized via Tamm plasmon polariton (TPP) structures supported by distributed Bragg reflectors (DBRs) on metal layers, however, optimizing TPP-WS-EMs is challenging because of the large number of parameters to optimize. To address this challenge, we use stochastic gradient descent (SGD) to optimize TPP-WS-EMs composed of an aperiodic DBR deposited on doped cadmium oxide (CdO) plasmonic films. While the SGD-optimized, aperiodic DBR offers extensive spectral control, the material choice, i.e., plasma-frequency-tunable doped CdO, enables the design capabilities not accessible with noble metals. Here, the individual layer thickness and carrier density of CdO are optimized by our SGD inverse design strategy. The resultant experimental designs demonstrate TPP-WS-EMs exhibiting isolated, high-Q (narrow bandwidth), and structures featuring multiple emission bands for applications such as free-space communications and gas sensing. Furthermore, we illustrate the deterministic design capability within the infrared, such as user-designated Q-factors (28 − 10,127) at a desired frequency, multi-band emitters with user-defined Q, and the ability to directly match arbitrary chemical absorption spectra. Thus, the combination of our SGD inverse design and the broadly tunable plasma frequency of CdO enables lithography-free, CMOS-compatible, and wafer-scale solutions for WS-EMs with unprecedented spectral control.

show abstract

Study of titanium nitride (TiN) as a novel plasmonic material for realization of Tamm-plasmon-polariton-based blood plasma sensor

et al. 2022

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Transparent conductive oxides for the epsilon-near-zero Tamm plasmon polaritons

Cited by 11 publications

References 44 publications

Deterministic inverse design of Tamm plasmon thermal emitters with multi-resonant control

Deterministic inverse design of Tamm plasmon thermal emitters with multi-resonant control

Deterministic Inverse Design of Lithography-Free, Wavelength-Selective Tamm Plasmon Thermal Emitters

Study of titanium nitride (TiN) as a novel plasmonic material for realization of Tamm-plasmon-polariton-based blood plasma sensor

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