Abstract Harnessing optical supermode interaction to construct artificial photonic molecules has uncovered a series of fundamental phenomena analogous atomic physics. Previously, the distinct energy levels and interactions in such two-level systems were provided by coupled microresonators. The reconfigurability is limited, as they often require delicate external field stimuli or mechanically altering geometric factors. These highly specific approaches also limit potential applications. Here,...

Abstract Microwave photonics (MWP) is an emerging field that studies the interaction between microwave and lightwave for myriad communication information applications. Recently, new opportunity MWP has emerged driven by advances of integrated photonics. However, despite significant progress made in terms integration level, a fully on‐chip functional system comprising all necessary photonic electronic components, yet to be demonstrated. Here, status quo broken complete solution provided,...

Self-injection locking has emerged as a crucial technique for coherent optical sources, spanning from narrow linewidth lasers to the generation of localized microcombs. This involves key components, namely laser diode and high-quality cavity that induces narrow-band reflection back into diode. However, in prior studies, mainly relied on random intracavity Rayleigh backscattering, rendering it unpredictable unsuitable large-scale production wide-band operation. In this work, we present simple...

Objective: Based on the interaction of ultrasonic excitation and magnetoelectrical induction, magneto-acousto-electrical (MAE) technology was demonstrated to have capability differentiating conductivity variations along acoustic transmission. By applying characteristics MAE voltage, a simplified algorithm measurement based reconstruction developed. Methods: With analyses vibration, ultrasound propagation, Hall effect, theoretical experimental studies were performed. The formula voltage...

Objective: As a novel noninvasive modality of oncotherapy or stroke treatment, high-intensity focused ultrasound (HIFU) has drawn more and attention in the past decades. Whereas, real-time temperature monitoring treatment-efficacy evaluation are still key issues for HIFU therapy. Methods: Based on temperature-conductivity relation tissues with sharp conductivity variation irreversible thermocoagulation at 69 °C, method ablation using magneto-acousto-electrical tomography (MAET) technology is...

By combining magnetics, acoustics and electrics, the magneto-acoustic-electrical tomography (MAET) proves to possess capability of differentiating electrical impedance variation thus improving spatial resolution. However, signal-to-noise ratio (SNR) collected MAET signal is still unsatisfactory for biological tissues with low-level conductivity. In this study, formula measurement sinusoid-Barker coded excitation derived simplified a planar piston transducer. Numerical simulations are...

Code clones have been used in many different software maintenance and evaluation tasks practice (e.g., change proportion evolution, refactoring, vulnerability management). There are clone detection techniques text-based, token-based, AST-based) which can detect code not only at the source code-level but also compiled artifacts IR or binary) level. Unfortunately, there few studies thoroughly compare results of various setups (a.k.a., applied artifacts), especially for C-based projects....

Mine activities may cause serious environmental problems. Whether the solid wastes from mine pollute environment is one of The Nanjing YinMao Lead-Zinc were investigated by multiple mineralogical techniques in this paper. Calcite and quartz major components X-ray diffraction spectrum. Several elements such as O, Mg, Zn, Fe, Mn, Ca, K, S, Si, Al, As Na detected electron microprobe analysis. Although contained heavy metals, their concentrations leaching solution ICP less than identification...

We propose a dynamic on-chip photonic molecule switch in an ultra-compact multimode silicon microring, allowing for flexible either nonlinear control or loss reduction. This strategy leads to record low-loss transition (Qi ~ 10 million) under hundred-GHz FSR level.

We propose the Sagnac ring with wide-band, reliable reflection f or self-injection locking, achieving lasers an intrinsic linewidth as low 24.38 Hz and demonstrating mode-locked microcomb generation at different resonances.

In this paper, an improved laminating varactor-loaded tunable notch filter (TNF) was proposed, which adopted only one split ring resonator (SRR) as the resonance unit. This operates at S band and can be tuned by control voltage on varactor. Comparing to former reported coplanar SRR TNF (I. Gil et al., 2004), structure is more compact its stopband bandwidth much narrower

The application of Electromagnetic band-gap (EBG) structure as the ground micro-strip filter is investigated in this letter. suppression to effect higher harmonic EBG evaluated, while different parameter discussed. An C-band parallel coupling band-pass realized. measured performance matched well with calculated results. newly proposed coupled PBG makes much suitable for small-sized integration assembly, wide band and mass production.

We perform first-principles calculation of the transport properties alumium-phosphorus dopped Si atomic nanowire coupled to two Al(100) nanoscale electrodes using non-equilibrium Green formalism combined with density-functional theory. In particular, silicon wire seven atoms sandwiched between is considered. It found that are sensitive dopping position alumium and phosphorus on wire. The equilibrium conductance pure rather big, close 3 G0, Three eigenchannels which contribute fully open. All...

Photonic crystals are widely used in a class of narrow-band frequency selective filter due to their excellent ability control electromagnetic waves, which the working depends on structural parameters point defect resonant cavity photonic crystal, and introduction some dispersive media into makes adjustable. In general, this kind cavity-filter is very sensitive parameter disturbance cavity, quality factor can be reduced significantly by material loss. On other hand, studies have shown that...

This paper proposes a novel technique of dynamic context management scheme for coarse-grained reconfigurable array DSP architecture, which effectively reduces the power consumption and speedup process. The permits background loading configuration data without interrupting regular execution, overlapping computation with reconfiguration. And stored configurations can be switched dramatically reducing reconfiguration overhead if next is present in one alternate contexts. proposed has been...

After the reasons for self-oscillation are analyzed, several elimination methods introduced to design of a low noise amplifier (LNA) which works in LS-band. These include: adding source negative feedback stability circuit; improving decoupling applying change DC power adjust static operating point slightly deal with circuit mismatching; adjusting layout microstrip grounding; rectifying bias circuit.

Spintronic devices will play a very important role in future information technology. In this study, By spin-polarized density-functional theory calculations combined with the Keldysh nonequilibrium Green’s method, effect of spin direction Co atom Co- phthalocyanine molecule modulating filtering effects under external biases are investigated. Here, an individual single Co-phthalocyanine is sandwiched between two infinite 8-zigzag-graphene nanoribbon electrodes. we find that relative to...

We study the size effects of electrode to elecronic transport properties via a molecule benzene sandwiched between two graphene electrodes using an ab initio nonequilibrium Green's function method and density theory. More specially, types are selected: one ring wide rings electrodes. find that current cross system is with bigger than Detailed analyses projected states transmission spectra reveals mechanism: wider electrodes, coeffients walk nearer fermi energy may make contribution at...

Abstract We propose a dual‐view integral imaging display that provides two three‐dimensional scenes at the same time. An adjustable pinhole array is generated by using liquid crystal panel. The horizontal pitch of adjustable, while vertical one unadjustable. center each elemental image deviation from corresponding pinhole. light rays emitted kinds images are propagated into left and right viewing directions. ranges unrelated to optimal distance. By changing pinhole, distance easily adjusted...

A novel 1550 nm fiber laser structure Chirped Pulse Amplification system has been present in this paper. The Phase Locked Loop and pulse picker arranged to get accurate stable phase noise control repetition rate frequency exchanging. Grating stretcher DCF compressor make completed chirp function for overall system, while four Erbium Doped Faber Amplifier chosen enough gain optical pulse. Suitable power width arrangement have put into the whole design actual Amplification. output with 3µJ...

One of novel Phase Locked Loops (PLL) microwave controlling system used in active mode-locking Pico-second Laser (PSL) at 5∼11GHz (from C band to X band) frequency repetition rate has been present this paper. We should call it PLL-PSL system. The complete PSL configuration with PLL circuit was introduced, while suitable structure get perfect output pulse low phase noise and timing jitters. On the other hand, better feature got optical port. applicability confirmation under agreement...