Metasurface for highly-efficient on-chip classical and quantum all-optical modulation

Yan, Siqi; Dong, Jianji

doi:10.1038/s41377-022-00934-1

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…Photonic circuits can provide fundamental functions that can be combined to implement specific algorithms [14][15][16][17][18][19][20], which would be practical and efficient for user-cased application scenarios. Moreover, the reduced energy costs of photonic computing have been a driving force behind works on dedicated photonic chips for machine learning and algebra [16,[21][22][23][24]. Therefore, we demonstrate a unary (versus binary) approach in a photonic chip for option pricing.…”

Section: Introductionmentioning

confidence: 98%

Efficient option pricing with a unary-based photonic computing chip and generative adversarial learning

Zhang¹,

Wan²,

Ramos-Calderer³

et al. 2023

Photon. Res.

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In the modern financial industry system, the structure of products has become more and more complex, and the bottleneck constraint of classical computing power has already restricted the development of the financial industry. Here, we present a photonic chip that implements the unary approach to European option pricing, in combination with the quantum amplitude estimation algorithm, to achieve quadratic speedup compared to classical Monte Carlo methods. The circuit consists of three modules: one loading the distribution of asset prices, one computing the expected payoff, and a third performing the quantum amplitude estimation algorithm to introduce speedups. In the distribution module, a generative adversarial network is embedded for efficient learning and loading of asset distributions, which precisely captures market trends. This work is a step forward in the development of specialized photonic processors for applications in finance, with the potential to improve the efficiency and quality of financial services.

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Section: Introductionmentioning

confidence: 98%

Efficient option pricing with a unary-based photonic computing chip and generative adversarial learning

Zhang¹,

Wan²,

Ramos-Calderer³

et al. 2023

Photon. Res.

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“…Metasurfaces are artificially constructed periodic sub-wavelength microstructures that can achieve a desired dielectric constant and permeability by actively selecting their material, shape, and arrangement so as to effectively manipulate the phase, amplitude, and polarization of electromagnetic waves [ 1 , 2 , 3 , 4 ]. Metasurfaces can precisely tune light–matter interactions at subwavelength scales, effectively excite surface plasmons (SPs), and achieve a variety of novel physical properties such as zero refractive index [ 5 ], negative reflection [ 6 ], super-resolution [ 7 ], and metalens [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

An Omnidirectional Dual-Functional Metasurface with Ultrathin Thickness

et al. 2022

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Although metasurfaces have received enormous attention and are widely applied in various fields, the realization of multiple functions using a single metasurface is still rarely reported to date. In this work, we propose a novel dual-functional metasurface that can be applied as a mid-infrared narrowband thermal light source in optical gas sensing and a long-wave infrared broadband absorber in photodetection. By actively tailoring the structure and constituent materials of the metasurface, the device yields an absorptivity of over 90% from 8 µm to 14 µm, while it exhibits an emissivity of 97.4% at the center wavelength of 3.56 μm with a full width at half-maximum of 0.41 µm. Notably, the metasurface is insensitive to the incident angle under both TM- and TE-polarized light. The proposed dual-functional metasurface possesses many advantages, including a simple structure, thin thickness, angle and polarization insensitivity, and compatibility with optical devices, which are expected to simplify the existing imaging systems and improve the performance of photodetection equipment.

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Polarization-sensitive metamaterial absorber based on the composite grating structure in the long-wave infrared band

Hou,

Liang,

Shi

et al. 2024

Optics & Laser Technology

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Metasurface for highly-efficient on-chip classical and quantum all-optical modulation

Abstract: Metasurface made of artificially two-dimensional structured subwavelength-scaled nanostructures gives rise to unprecedented efficient way to realize on-chip all-optical modulation, in both classical regime and quantum regime.

Cited by 3 publications

References 10 publications

Efficient option pricing with a unary-based photonic computing chip and generative adversarial learning

Efficient option pricing with a unary-based photonic computing chip and generative adversarial learning

An Omnidirectional Dual-Functional Metasurface with Ultrathin Thickness

Polarization-sensitive metamaterial absorber based on the composite grating structure in the long-wave infrared band

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