Moving toward optoelectronic logic circuits for visible light: a chalcogenide glass single-mode single-polarization optical waveguide switch

Chen, Zhi; Wang, Guande; Wang, Xiong; Zhao, Quanzhong

doi:10.1364/ao.56.001405

Cited by 12 publications

(4 citation statements)

References 26 publications

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“…While a photochemical process is usually rapid and precise and can be operated remotely without generating any chemical waste, optofunctional molecules and materials have continueed to attract attention over recent decades. − In particular, chemical systems that are capable of response to visible light are playing an even more significant role in a variety of new appearing fields, − because a visible light source has less harmful effects on the human body as compared with ultraviolet (UV) light and can generally ensure deeper penetration into a large scale of media or biosamples. The past years have witnessed the progress in the visible range of molecular engineering, the application of which has been largely focused on molecular switching, − molecular logic, , molecular assembly, − molecular catalysis, , and so on. − However, the mediation of molecular-scale sensing through visible light has received little attention, probably because the readout of the sensing state of a functional molecule is usually insensitive to visible-light energy; thus, the structural design will meet great challenges.…”

mentioning

confidence: 99%

Rational Design of a Green-Light-Mediated Unimolecular Platform for Fast Switchable Acidic Sensing

Zhou

Zou

Qiu

et al. 2018

J. Phys. Chem. Lett.

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A controllable sensing ability strongly connects to complex and precise events in diagnosis and treatment. However, imposing visible light into the molecular-scale mediation of sensing processes is restricted by the lack of structural relevance. To address this critical challenge, we present the rational design, synthesis, and in vitro studies of a novel cyanostyryl-modified azulene system for green-light-mediated fast switchable acidic sensing. The advantageous features of the design include a highly efficient green-light-driven Z/E-isomerization (a quantum yield up to 61.3%) for fast erasing chromatic and luminescent expressions and a superior compatibility with control of ratiometric protonation. Significantly, these merits of the design enable the development of a microfluidic system to perform a green-light-mediated reusable sensing function toward a gastric acid analyte in a miniaturized platform. The results may provide new insights for building future integrated green materials.

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confidence: 99%

Rational Design of a Green-Light-Mediated Unimolecular Platform for Fast Switchable Acidic Sensing

Zhou

Zou

Qiu

et al. 2018

J. Phys. Chem. Lett.

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“…This type of SH effect has been reported for surface plasmon polaritons and guided waves [7][8][9][10][11]. The spin manipulation of guided modes is of particular interest for integrated optics [12], quantum optics [13], optoelectronics, biosensors [14][15][16]. The reverse SH effect, where the direction of the guided wave affects the spin of the light scattered by a nanostructure [17], is also of particular interest for controlling the decoupling of guided modes into free space, in a polarization-dependent way.…”

Section: Introductionmentioning

confidence: 79%

Metasurface for Reciprocal Spin-Orbit Coupling of Light on Waveguiding Structures

et al. 2018

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Light manipulation through spin-orbit coupling opens new perspectives in photonics and particularly in integrated optics. The reverse spin Hall effect, where the guided wave direction affects the polarization properties of the light scattered by a nanostructure, is a key effect for the development of new functionalities at the connection between integrated structures and free space, and could find application in chiral quantum optics, modulation, and multiplexing. We show that metasurfaces represent a promising platform for the reverse spin Hall effect. Using a periodic array of-shaped metallic nanoantenna, we control the polarization of the extracted light with the guided wave-propagation direction, but also the number of output directions and the polarization of each one. These results and the versatility of metasurfaces for the spin Hall effect could be extended to various frequencies and materials, such as silicon photonics at telecom wavelength.

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“…Due to photon absorption by the electrons in the sublevels, some unique optical phenomenon including optical stopping has been observed [28]- [31]. To enable the occurrence of optical stopping, thin-film waveguides formed by As 2 S 8 or its doped materials are indispensable [29], [30], which have been studied extensively in terms of phenomenon [29], [30], mechanism [31], and applications [32]. Understanding underlying physics of the optical stopping is very beneficial for improving performances and developing novel photonic components.…”

Section: Introductionmentioning

confidence: 99%

Physical Mechanism and Response Characteristics of Unsaturated Optical Stopping-Based Amorphous Arsenic Sulfide Thin-Film Waveguides

Chen

Wang

2019

IEEE Photonics J.

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Optical stopping can serve as a light-controlled solution to implementing photonic components. In contrast to saturated optical stopping that provides enough excited electrons to entirely absorb signal lights, unsaturated optical stopping introduces a photon competition mechanism for signal lights and pump lights due to insufficient excited electrons. This photon competition mechanism produces a kind of regular signals, which is very similar to the signals applied in pulse-coupled neural network. However, due to its unclear physical mechanism, it is impossible to further improve performances of the unsaturated optical stopping-based components. Here, we propose a kinetic model to reveal physical mechanism of the unsaturated optical stopping and establish a corresponding formalism that enables calculation of time response of the unsaturated optical stopping-based amorphous arsenic sulfide thin-film waveguides. Our work provides a new insight into the physical phenomenon of unsaturated optical stopping and builds a theoretical foundation for further research on response characteristics of amorphous arsenic sulfide thin-film waveguides.

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Moving toward optoelectronic logic circuits for visible light: a chalcogenide glass single-mode single-polarization optical waveguide switch

Cited by 12 publications

References 26 publications

Rational Design of a Green-Light-Mediated Unimolecular Platform for Fast Switchable Acidic Sensing

Rational Design of a Green-Light-Mediated Unimolecular Platform for Fast Switchable Acidic Sensing

Metasurface for Reciprocal Spin-Orbit Coupling of Light on Waveguiding Structures

Physical Mechanism and Response Characteristics of Unsaturated Optical Stopping-Based Amorphous Arsenic Sulfide Thin-Film Waveguides

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