On-chip wireless silicon photonics: from reconfigurable interconnects to lab-on-chip devices

García-Meca, Carlos; Lechago, Sergio; Brimont, A.; Griol, Amadeu; Mas, Sara; Sánchez, Luis; Bellières, Laurent; Losilla, N. S.; Martí, J.

doi:10.1038/lsa.2017.53

Cited by 80 publications

(114 citation statements)

References 43 publications

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“…Remarkably, this concept has not been previously observed in the optical SUSY literature [23][24][25][26][27][28][29]. In this vein, these results might be extrapolated to SUSY planar waveguides, which may open different possibilities for signal-processing applications in integrated photonics [54,55].…”

Section: Discussionmentioning

confidence: 80%

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Supersymmetric Transformations in Optical Fibers

2018

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Supersymmetry (SUSY) has recently emerged as a tool to design unique optical structures with degenerate spectra. Here, we study several fundamental aspects and variants of one-dimensional SUSY in axially symmetric optical media, including their basic spectral features and the conditions for degeneracy breaking. Surprisingly, we find that the SUSY degeneracy theorem is partially (totally) violated in optical systems connected by isospectral (broken) SUSY transformations due to a degradation of the paraxial approximation. In addition, we show that isospectral constructions provide a dimension-independent design control over the group delay in SUSY fibers. Moreover, we find that the studied unbroken and isospectral SUSY transformations allow us to generate refractive-index superpartners with an extremely large phase-matching bandwidth spanning the S þ C þ L optical bands. These singular features define a class of optical fibers with a number of potential applications. To illustrate this, we numerically demonstrate the possibility of building photonic lanterns supporting broadband heterogeneous supermodes with large effective area, a broadband all-fiber true-mode (de)multiplexer requiring no mode conversion, and different mode-filtering, mode-conversion, and pulse-shaping devices. Finally, we discuss the possibility of extrapolating our results to acoustics and quantum mechanics.

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Section: Discussionmentioning

confidence: 80%

“…[28] by Heinrich et al by performing a discrete representation of the refractive-index profile using photonic lattices. In contrast to SUSY optical fibers, a SUSY mode converter with planar structure is of special interest for signal processing applications in integrated photonics [54,55]. However, the device demonstrated in Fig.…”

Section: A Unbroken Susymentioning

confidence: 99%

Supersymmetric Transformations in Optical Fibers

2018

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“…Due to their small size, SiO 2 NPs are used in many fields, including catalysis (Xu et al, ), photonics (García‐Meca et al, ), bio‐labeling (Arap et al, ), diagnosis (M. Zhang et al, ), and therapy (Bayir et al, ).…”

Section: Silica Npsmentioning

confidence: 99%

Nanoparticles used for fingermark detection—A comprehensive review

Kanodarwala

Moret

Spindler

et al. 2019

WIREs Forensic Science

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Nanoparticles (NPs) have been used in numerous fields such as medicine, imaging, and electronics to cite just a few. In forensic science, NPs have been researched specifically for the detection of fingermarks. Their small size, surface functionalization ability, and luminescence properties can potentially lead to better resolution, increased sensitivity, and selectivity. This paper offers an extensive review of the various NP types investigated over the past three decades. NPs are sorted into seven categories, namely metal, metal oxide, quantum dots (QDs), carbon dots (C‐dots), silica (SiO2), and upconverters NPs (UCNPs) as well as a miscellaneous section. Each type is discussed in details from a critical viewpoint. The most promising NP types are also identified. This article is categorized under: Forensic Chemistry and Trace Evidence > Fingermarks and Other Marks

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“…Therefore, the pulse duration could be tunable from 32 ns to 260 ns by controlling the electric signals. Based on graphene/WS 2 van der Waals heterostructure, Q-switched waveguide laser has been achieved with a high slope efficiency of 37% and a maximum output power of 275 mW [50].…”

Section: Introductionmentioning

confidence: 99%

Low-dimensional materials as saturable absorbers for pulsed waveguide lasers

Pang

et al. 2020

J. Phys. Photonics

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Low-dimensional (LD) materials, such as 2D materials, carbon nanotubes, and nanoparticles, have attracted increasing attention for light modulation in photonics and optoelectronics. The high nonlinearity, broad bandwidth, and fast response enabled by LD materials are critical to realize desired functionalities in highly integrated photonic systems. Driven by the growing demand for compact laser sources, LD materials have recently demonstrated their great capacity as saturable absorbers in pulsed (Q-switched or mode-locked) laser generation in waveguide platforms. We review the recent advances of pulsed waveguide lasers based on LD materials. A perspective is also presented in this rapidly growing research field. Fundamentals of LD saturable absorbers and optical waveguidesOwing to the diverse electronic structures, LD materials offer versatile options to realize wide applications based on the nonlinear optical response. Currently, semiconductor saturable absorber mirrors (SESAMs) are the most frequently used commercial SAs, processing high damage threshold and prominent stability. However, a variety of LD materials retain a number of advantages to be nonlinear SAs, of which SESAMs © 2020 The Author(s). Published by IOP Publishing Ltd J. Phys. Photonics 2 (2020) 031001 Z Li et al cannot fulfill, such as broadband operation, ultrafast recovery time, low cost, and better compatibility with compact devices such as fibers and waveguides. Recently, an increasing number of research efforts have been made to unfold the nonlinear optical properties as well as its corresponding applications of the emerging LD materials [14][15][16][17][18][19][20][21][22][23]. For semiconducting or semimetallic LD materials, the main mechanism for nonlinear saturable absorption is Pauli blocking. After photoexcitation, non-equilibrium carrier state could be created, in which valence-band electrons can be excited to the conduction band, and a hole can be formed on the valence band. As the increase of the incident light intensity, the photon absorption processes of LD materials experience a transition from linear absorption to saturable absorption. When the light intensity continues increasing and reaches the saturation intensity, the extra photons will no longer be absorbed by the electrons in the valence band, and the transmittance of the SA will not increase but gradually tend to a stable value. For metallic nanoparticles, the dominant mechanism is the LSPR effect arising from the interaction between the electric field of incident light and the surface electrons in the conduction band. The optical nonlinearity could be significantly enhanced while maintaining the ultrafast recovery time. These nonlinear effects are widely used in passively Q-switched or mode-locked lasers. In order to characterize the nonlinear optical properties, femtosecond Z-scan spectroscopy is typically employed by moving the sample along the Z direction through a focused Gaussian beam. The laser intensity can be varied continuously with the maximum at the focal poin...

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On-chip wireless silicon photonics: from reconfigurable interconnects to lab-on-chip devices

Cited by 80 publications

References 43 publications

Supersymmetric Transformations in Optical Fibers

Supersymmetric Transformations in Optical Fibers

Nanoparticles used for fingermark detection—A comprehensive review

Low-dimensional materials as saturable absorbers for pulsed waveguide lasers

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