In this paper, we present the detailed physical insights into electrostatic discharge (ESD) behavior of hydrogenated amorphous silicon (a-Si:H)-based thin-film transistor (TFT) technology. Device failure under ESD conditions is studied in detail using electrical and optical techniques. degradation timescales real-time capacitance-voltage a spatially variant reported. Variations material properties are before after device Raman spectroscopy. dimension-dependent mechanism explored. Impact...

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Kerr frequency combs (KFCs) generated from continuous-wave pumped microresonators have been vastly exploited for a plethora of applications. Along with an appreciable bandwidth, most the applications demand stable and coherent comb, which is challenging quest. Several complex experimental approaches were reported to attain combs. In this paper, we report innovative simple approach achieve stabilized KFCs in ${\text{Si}}_{3}{\text{N}}_{4}$ racetrack microring resonator. Intensive numerical...

The paper highlights the design and control of DC power supplies used for direct heating applications in experimental facilities simulating various kinds transients like reactor decay curve, loss coolant accident, setback stepback patterns, etc. expected nuclear reactors. High current regulated thyristor controlled designed have superior response than those transients. has been by using programmable ramp generator which generates reference voltage proportional to square root feeds circuit...

Large area and flexible electronic systems are widely used in applications such as displays, image sensors, wearable electronics energy harvesting systems. A key element many of these is the electrostatic discharge protection circuit. The conventional circuit uses large aspect-ratio diode connected thin film transistors that offer a low resistance path to surge current but also does same signals during normal system operation resulting power loss. Here we describe well demonstrate...

Abstract Rapid detection of a single nanoparticle has always been challenging and demanding. Several methods approaches have employed over the last few years. In this work, we devised an integrated photonic platform to detect (NP) such as gold (Au) nanoparticle. The proposed platforms make use racetrack micro-ring resonator where small region in lower arm (non-coupled) tapered enhance evanescent field strength many folds, which enhances sensitivity device. Numerical simulations performed...

In this work, we present detailed physical and technological insights into the ESD behavior of a-Si:H TFTs. Pre-Breakdown mechanism is investigated using Electron microscopy, Raman spectroscopy on-the-fly I-V/ C-V measurements in between TLP stress. Competing mechanisms device failure effect various performance parameters on threshold are investigated. Effect channel dimensions thoroughly explored. For first time, display technology based Gated diodes Resistors reported. Detailed...

Detailed physical insight into the ESD behavior and unique failure mechanisms of Pentacene Organic Thin Film Transistors (OTFTs) is reported. Orders magnitude difference in channel current under time scales, when compared to DC discovered. Moreover, three stage TLP characteristics with snapback state novel mechanism are Finally, influence field Surface Assembled Monolayer (SAM) on carrier transport threshold addressed.

Abstract Guided mode resonance (GMR) structures offer simplicity and have spectral capabilities such as narrowband resonance, high Q-factor, whereas topological surface features spatial light control. In this paper, we explore the integration of GMR with photonics to achieve extreme two-dimensional (2D) confinement light. With integration, propose a novel design that leverages discontinuous (crosscut) excite Jackiw - Rebbi (JR) solution, which describes relationship between Dirac equation...

A novel wavelength and 3D-slice multiplexing for waveguide meta-hologram using dislocated grating is proposed. Phase modulation optimized to form four alphabets letters 532nm 650nm wavelengths at screen distances of 50µm 100µm.

The present works demonstrates a Fano resonating horizontal subwavelength grating structure in biomolecule sensing, with sensitivity ~ 40nm/RIU, FOM of 12 RIU -1 and Q factor 460, for refractive indices between 1.312 1.33.

This paper showcases the first-ever integration of Vertical-Cavity Surface-Emitting Lasers (VCSELs) and Holey meta-lenses for sub-wavelength beam-focusing. Operating at 1310 nm with FWHM ~1 µm ~66% efficiency, this novel approach promises future enhancements easy fabrication.

In this work, we report the phase transition behavior of hydrogenated amorphous silicon on application nanosecond timescale high-field pulse electrical stress. The to nanocrystalline silicon, confirmed through Raman spectroscopy, is marked by an abrupt change in I-V characteristics. mechanism at high electric field involving avalanche generation charge carriers and optical phonon discussed. role defect states localization eventual explored. case devices with a drain-gate underlap also...

The extreme use of power electronic devices in the system generates harmonics that leads to quality issues. Here this work formulates design, simulation and tentative investigation on a 3-phase multi-level shunt active filter improve by reducing harmonics. In this, performance using instantaneous theory with PI hysteresis current controller is explained. parameters are tuned modified particle swarm optimization technique (MPSO). abbreviated called as PI-MPSO controller. Optimization helps...

In this work, we study the device degradation of a-Si:H thin film transistors upon application high frequency nano-second timescale pulse stress on drain contact. Degradation mechanisms at different field levels have been investigated using real-time current–voltage, capacitance–voltage and Raman spectroscopy measurements. A positive VT shift under moderate electric followed by a recovery (negative shift) fields has observed. Spatial variance in studied. mechanism from hot to cold contact is...

Mid-IR bandpass filter based on microring resonators 2D array is designed and fabricated. The structure analyzed using transfer matrix-method simulated FDTD. design fabricated with polymer (IP-Dip) two-photon polymerization process.

We present physical insights into the instability behavior of hydrogenated amorphous TFTs under ESD stress using real-time current-voltage and capacitance-voltage characterization. A threshold voltage increase moderate a recovery high is investigated. Impact gate-bias device dimension explored. Physics annealing an associated Finally, we investigate in a-Si:H gated diodes explore role self-heating on their reliability.

We report the creation of chromium-coated optical fiber meta-tip using Focused-Ion-Beam Lithography. A 2D nano array is designed and fabricated on standard tip supports localized surface plasmon resonance.

Photonic nanofence assisted racetrack micro-ring resonator is proposed, numerically analyzed and fabricated. Numerical results demonstrate the device ability to detect single gold nanoparticle which can be a potential platform for bio-sensing applications.