Broadband asymmetric light transmission interfaces for luminescent solar concentrators

Oliveto, Vincent; Borca-Tasciuc, Diana-Andra

doi:10.1039/d0na00946f

Cited by 8 publications

(4 citation statements)

References 27 publications

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“…In addition to radiative cooling, the DL model is useful to optimize the DCR efficiently for its potential applications, such as silicon solar cells, 27 luminescent solar concentrators, 28 non-contact temperature sensors, 22 and free-space optical communications. 43 , 44 Furthermore, our work may be essential to better understand light–matter interactions in other systems.…”

Section: Discussionmentioning

confidence: 99%

“…In addition to radiative cooling, the DL model is useful to optimize the DCR efficiently for its potential applications, such as silicon solar cells, luminescent solar concentrators, non-contact temperature sensors, and free-space optical communications. , Furthermore, our work may be essential to better understand light–matter interactions in other systems. For example, recently, coloration has been achieved by hemispherical dielectric microstructures. − The coloration is attributed to the round-trip reflection by TIRs and light interference occurring inside the microstructure.…”

Section: Discussionmentioning

confidence: 99%

“…Our model suggests that this diffraction occurs no matter how large the DCR is relative to the wavelength. Our analysis is not confined to a specific wavelength range, which enables us to contribute to high-performance DCRs not only for radiative cooling but also for other applications requiring an ALT, such as silicon solar cells and luminescent solar concentrators …”

Section: Introductionmentioning

confidence: 99%

“…Our analysis is not confined to a specific wavelength range, which enables us to contribute to highperformance DCRs not only for radiative cooling but also for other applications requiring an ALT, such as silicon solar cells 27 and luminescent solar concentrators. 28 2. GOOS−HA ̈NCHEN SHIFT When the TIR reflects the light, the reflected light is laterally shifted from a point predicted by geometrical optics.…”

Section: Introductionmentioning

confidence: 99%

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Reflection Mechanism of Dielectric Corner Reflectors: The Role of the Diffraction of Evanescent Waves and the Goos–Hänchen Shift

2022

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Nano- and microstructures have been developed for asymmetric light transmission (ALT) filters operating in a wide wavelength range. One of the most straightforward structures with ALT properties is a dielectric corner reflector (DCR) comprising a one-dimensional grating of a triangular shape on one surface. The DCR possesses strong reflection only for one-way light illumination due to multiple total internal reflections (TIRs) inside the triangular grating. For triangular structures being much larger than the wavelength of light, the reflection properties are expected to be fully described by geometrical optics. However, geometrical optics do not account for the Goos–Hänchen (GH) shift, which is caused by the evanescent wave of the TIR. In this work, the reflection mechanism of DCRs is elucidated using the finite element method and a quantitative model built by considering the GH shift. The reduction in reflection of the DCR is dominated by diffraction of the evanescent wave at the corner of the triangular structure. Our model is based on simple mathematics and can optimize the DCR geometry for applications addressing a wide wavelength range such as radiative cooling.

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