Flexible corner cube retroreflector array for temperature and strain sensing

Khalid, Muhammad Waqas; Ahmed, Rajib; Yetisen, Ali K.; Butt, Haider

doi:10.1039/c7ra13284k

Cited by 10 publications

(6 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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%

“…One alternative structure for broadband ALT is a dielectric corner reflector (DCR). , The DCR is a film with a one-dimensional grating of a triangular structure. The DCR is composed of a relatively simple microstructure that can be made of a low-cost polymer by a mechanical stamping, enabling the production of large-area devices. The DCR can have high reflectance only when the light propagates into the DCR from the flat side.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

2022

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

2022

View full text Add to dashboard Cite

show abstract

“…The research is quite focused on the work and application of CCR. The ultrasonic reflective characteristics of a CCR are investigated in [20], while flexible CCR array for temperature and strain sensing is considered in [21]. Other models of retroreflectors that represent the modifications of CCR created in order to improve the performance given in [22,23].…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of WSN–FSO system modeled by Gamma–Chi-square channel distribution

Todorović¹,

Jakšić²,

Spalević³

et al. 2023

PEAS

View full text Add to dashboard Cite

This paper presents the WSN-FSO (wireless sensor network-free-space optics) system based on CCR (corner cube retroreflector) and modeled with Gamma-Chi-square distribution. The expressions of ABER (average bit error rate) for the received signal under conditions of different levels of atmospheric turbulence are calculated. Numerical results are presented in the form of graphs, and the results are confirmed by the Monte Carlo simulation. Graphs are presented for different Rician factor values, link lengths, and different levels of atmospheric turbulence. The obtained results are compared with the existing results for other FSO channel distribution models. After thorough consideration we conclude that Gamma-Chi-square gives a better system performance in terms of ABER.

show abstract

“…

…”

mentioning

confidence: 99%

Flat Retroreflector Based on a Metasurface Doublet Enabling Reliable and Angle‐Tolerant Free‐Space Optical Link

Lee

Zhou

et al. 2021

Advanced Optical Materials

View full text Add to dashboard Cite

networks, [1] augmented/mixed reality, [2] optical sensors, [3] and laser tracking. [4] For free-space optical communications in the case of wireless data transfer between mobile (e.g., aircrafts, ships, and satellites) and stationary terminals, both passive and active modulating retroreflectors have been extensively investigated. [5][6][7][8][9] The wavefront pertaining to geometrical optical devices is mediated by the accumulated phase shift over a relatively long propagation distance. [10,11] Therefore, conventional retroreflectors such as cat's eye and corner-cube types are particularly subject to shortcomings in terms of their bulky size, heavy weight, and nonplanar shape.Metasurfaces, incorporating specifically engineered subwavelength nanostructures, have been prevalently leveraged to tailor the phase, amplitude, polarization, and spectrum of light beams. [12][13][14] Metasurface-based devices based on nanoresonators allow for dispersion characteristics that are dictated mainly by the geometrical parameters and structural arrangement, and they facilitate facile wavefront manipulations unlike conventional geometrical optics-based components. [15][16][17][18][19] Recently, flat retroreflectors (FRRs) based on a singlet metasurface were proposed, providing merits with respect to their miniaturization and integration with other optic/electronic devices. [20,21] However, their limited angles of operation may constitute a concern to be solved. [22] To mitigate this, metasurface doublets (MDs), which are geared to render successive beam manipulations, have been actively studied. [23][24][25][26][27] For example, an MD-based retroreflector that render wide-angle retroreflections at a wavelength of 850 nm was proposed. [25] Compared with an 850-nm wavelength, which is mostly used for imaging and biometrics, [28] a 1550-nm wavelength in the C-band is unequivocally desirable for long-distance optical communications from the perspective of its minimal attenuation in optical fibers, good eye safety, and compatibility with an erbium-doped fiber amplifier (EDFA). [29][30][31] To the best of our knowledge, there has been no report on the demonstration of a metasurface-based retroreflector for implementing free-space optical communications.In this paper, a reliable and highly angle tolerant optical link capitalizing on an MD-based FRR is proposed and demonstrated to operate in the telecommunications regime centered at λ = 1550 nm. The proposed MD incorporates arrayed hydrogenated

show abstract

Flexible corner cube retroreflector array for temperature and strain sensing

Abstract: A flexible corner cube retroreflector (CCR) array based passive dual sensing is demonstrated to measure external stimuli (temperature/mechanical force as weight suspension).

Cited by 10 publications

References 44 publications

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

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

Performance analysis of WSN–FSO system modeled by Gamma–Chi-square channel distribution

Flat Retroreflector Based on a Metasurface Doublet Enabling Reliable and Angle‐Tolerant Free‐Space Optical Link

Contact Info

Product

Resources

About