Abstract Reconfigurable waveguide components are promising building blocks for photonic neural networks and as an optical analogue to field-programmable gate arrays. By changing the effective index of waveguide, reconfigurable can achieve on-chip light routing modulation. In this paper, we design demonstrate Sb 2 S 3 -reconfigurable InP membrane Mach–Zehnder interferometer (MZI) on a silicon su...

In a classical PLL, the phase detector (PD) and charge pump (CP) noise is multiplied by N, when referred to the VCO output, due to the divide-by-N in the feedback path. It often dominates the in-band phase noise and limits the achievable PLL jitter·power Figure-Of-Merit (FOM). A subsampling PLL uses a PD that sub-samples the high frequency VCO output with the reference clock. The PD and CP nois...

Swift heavy ion irradiation was carried out to examine the ionization effects on structural changes of δ-Sc 4 Hf 3 O 12 in which oxygen vacancies are regularly arranged. The specimens were irradiated at room temperature with 92 MeV xenon ions fluences ranging from × 10 1 14 /cm 2 and characterized by grazing (glancing) incidence x-ray diffraction, transmission electron microscopy, scanning micr...

Abstract Two-dimensional (2D) transition metal carbides, nitrides, and carbonitrides, known as MXenes, are under increasing pressure to meet technological demands in high-temperature applications, MXenes can be considered one of the few ultra-high temperature 2D materials. Although there studies on stability their surface functionalities, is currently a gap fundamental understanding phase trans...

This paper reports the formation and dissociation pattern of hydrate crystals with varying compositions CH4 CO2 in porous media. Direct visualization was carried out using a high-pressure, water-wet, silicon wafer-based micromodel pore network resembling sandstone rock. Hydrate were formed under reservoir conditions (P = 45–65 bar T 1.7–3.5 °C) from either two-phase system consisting liquid wat...

We investigated the suppressed capacity fading of a Ca-substituted P3-type Na x CoO 2 during charge/discharge process. The shows similar phase transition behavior to Ca free one, with an expanded P?3 region. is highly correlated at 4.0 V P?3–O3? and 2.7 O?3–P?3 transition. amount Co 3 O 4 observed in cycled electrodes corresponds loss cycling test. Thus, migration 3+/4+ ions process causes fadi...