Optical bistable

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August undefined, 2024

WebMar 14, 2024 · Optical bistability effect is investigated in a complex system composed of graphene and Thue–Morse photonic crystals (PCs). The Thue–Morse PCs submitted to …

Controlling Fano resonances in multilayer dielectric gratings

WebOct 26, 2024 · We model optical bistability in all-dielectric guide-mode resonance grating (GMR) nanostructures working at quasi-bound states in the continuum (BICs). The complementary metal-oxide-semiconductor (CMOS) compatible material silicon nitride (SiN) is used for the design of nanostructures and simulations. The ultra-low threshold of input … WebOct 23, 2024 · Dynamical response of an optical bistable system to a time-periodic driving field is studied. We found a phase transition in the structure of limit cycle as a function of the frequency of the ... share in confidence

Optical bistable SOI micro-ring resonators for memory …

WebFeb 26, 2012 · Optical bistable switches with a nonlinear cavity and bistable lasers have both been studied for over two decades in attempts to develop o-RAM functions 12. However, these approaches are ... WebNov 7, 2024 · The optical bistable properties and the bistable thresholds (\(U_{\textrm{l}}\) and \(U_{\textrm{u}}\)) depend on the optical nonlinearity. In this hybrid system, threshold of the optical bistability can be reduced by the surface plasmon effect, providing the possibility of realizing optical bistability at lower light intensity than single ... WebApr 10, 2024 · Unprecedented Route to Amide-Functionalized Double-Decker Silsesquioxanes Using Carboxylic Acid Derivatives and a Hydrochloride Salt of Aminopropyl-DDSQ. Anna Władyczyn. and. Łukasz John *. Inorganic Chemistry 2024, 62, 14, 5520-5530 (Article) Publication Date (Web): March 29, 2024. Abstract. share incorporated

Optical bistability of graphene in PT−symmetric Thue ... - Springer

王俊達助理教授(108學年度全校優良導師) - 國立中山大學光電工程 …

WebIn this work, we numerically demonstrate optical bistability with bound states in the continuum in a simple one-dimensional Si photonic crystal. The designed structure supports bound states in the continuum, producing an ultrahigh quality factor without tough fabrication conditions. In a dynamical system, bistability means the system has two stable equilibrium states. Something that is bistable can be resting in either of two states. An example of a mechanical device which is bistable is a light switch. The switch lever is designed to rest in the "on" or "off" position, but not between the two. Bistable behavior can occur in mechanical linkages, electronic circuits, nonline… poo restaurant sukhothaiWebThe properties of the optical bistability are investigated at the resonance wavelength with three different detuning parameters. In addition, the results show that this switch has a wide operating wavelength regime and fast operation speed of 90 Gb/s. Considering numerous characteristics, such a high-speed switch can find application poorest areas of london

"WebOptical bistable operation in a single nanocavity permits optical read–write memory operation, which opens the possibility of an integrated optical logic circuit on a single chip, based on photonic crystals. The demonstrated bistable threshold power is 0.4 mW with a set pulse energy of 74 fJ, at a switching speed of <100?ps. " - Optical bistable

Optical bistable

EPR Identification of coupled Yb3+ ion pairs in optically bistable ...

WebYu-Ming Huang, Li-Min Chang, Chun-Ta Wang*, “Electrically induced bistable switching of stop band in chiral nematic photonic crystal,” Journal of Molecular Liquids 365, ... Chun-Ta Wang, and Tsung-Hsien Lin, “Bistable reflective polarizer-free optical switch based on dye-doped cholesteric liquid crystal,” Opt. Mater. Exp. 1, ... WebApr 1, 2024 · Exciton–polaritons in optical cavities exhibit strong nonlinearities predominantly because of the third-order Kerr-like interactions mediated by the excitonic component. Under quasi-resonant excitation, depending on the energy of the incident laser, it results in the optical limiting or bistable behavior. The latter phenomenon is manifested …

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WebAug 27, 2016 · In short, the feedback in optical bistability plays an important role. The optical bistability, in general, is the bistability of light intensity (or light power), sometimes this conception of bistability can be expand to other physical quantities, such as frequency etc. 2. Composition of Optical Bistable Devices. WebJun 12, 2024 · Typical optical bistable properties are observed in both near-field and far-field spectra with the excitation of electric dipolar modes. Moreover, when high electromagnetic field is applied, nonlinear full wave theory yields new bistable region, indicating the existence of an artificial tunable magnetic dipole. The switching threshold fields ...

WebAbove-band-gap optical excitation produces interdependent structural and electronic responses in a multiferroic BiFeO3 thin film. Time-resolved synchrotron x-ray diffraction … WebAug 31, 2024 · The novel structure is theoretically investigated using the conventional transfer matrix method. Using these two special nonlinear materials, the optical …

WebFeb 9, 2024 · [9-13] A different type of bistable device is an electro-absorptive self-electro-optic device (SEED), constructed of a semiconductor multiple quantum wells biased by an … In optics, optical bistability is an attribute of certain optical devices where two resonant transmissions states are possible and stable, dependent on the input. Optical devices with a feedback mechanism, e.g. a laser, provide two methods of achieving bistability. • Absorptive bistability utilizes an absorber to block light inversely dependent on the intensity of the source light. The first bistable state resides at a given intensity where no absorber is used. T…

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WebElectron Paramagnetic Resonance (EPR) studies on ytterbium ions in weakly doped CsCdBr3 are reported. Analysis of the characteristic features of the observed EPR spectra and their angular dependence share in computer networkWebJan 18, 2024 · In order to realize the control of polarization switchings induced by modulated optical injection in the bistable laser with the help of the phenomenon of VR, the periodic square-wave signals at the frequency fH = 25--100 kHz with different amplitudes AH from the generator were added to the dc pump current jdc of the bistable laser. poorest balkan countryWebA multimode integrated optical bistable switch using a LiNbO 3 phase modulator in a noncavity configuration was constructed and tested. Bistability and discriminator … poorest basketball playerWeb2 days ago · By applying a bias between these two electrodes, the optical resonance of the micro-ring is controlled, leading to bistable resonant states within the optical resonator. … share increaseWebMay 25, 2024 · Two main conditions should be applied to achieve optical bistability and consequently memory operation: the system should (a) provide at least two discrete, stable states that represent the... share inc ridgewood njWebLooking for bistable optical device? Find out information about bistable optical device. A device which can be in either of two stable states of optical transmission for a single … poorest areas of indiaWebApr 12, 2024 · of an optical and electrical bistable effect in our device, we tested the OSRAM device as a memory cell by connecting it to a load re-sistor and to a bit line. A very low power consumption of about~200 pW and a low operating bias of 1 V are needed to switch between the ‘0’ and ‘1’ state of the memory. Furthermore, shareind bse share code