Akshay Naik
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View article: Engineering MoS2–MoTe2 heterojunctions: Enhancing piezoresponse and rectification
Engineering MoS2–MoTe2 heterojunctions: Enhancing piezoresponse and rectification Open
Piezoelectric materials play a vital role in energy harvesting, piezotronics, and various self-powered sensing applications. The piezoelectric strength of 2D materials is limited by the carrier charge screening, leading to reduced open-cir…
View article: Graphene-mediated interfacial interactions at polar liquid–air interface in a microfluidic platform
Graphene-mediated interfacial interactions at polar liquid–air interface in a microfluidic platform Open
Graphene, a monoatomic two-dimensional layer with high in-plane elasticity and strength, can function as an ultrathin suspended membrane on top of liquid surfaces in a microfluidic platform. Such platforms have promising sensing applicatio…
View article: Large Thermo-Optic Blue Shift in a Silicon Micro-ring Resonator using Fe/Co Bistable Molecule
Large Thermo-Optic Blue Shift in a Silicon Micro-ring Resonator using Fe/Co Bistable Molecule Open
Phase change materials (PCMs) with distinct optical properties at different phases are promising candidates for programmable photonics, optical communication and photonic computing. In this work, we have studied thermo-optic effect in a PC…
View article: Engineering MoS$_2$-MoTe$_2$ Heterojunctions: Enhancing Piezoresponse and Rectification
Engineering MoS$_2$-MoTe$_2$ Heterojunctions: Enhancing Piezoresponse and Rectification Open
Piezoelectric materials play a vital role in energy harvesting, piezotronics and various self-powered sensing applications. The piezoelectric strength of 2D materials is limited by the carrier charge screening, leading to reduced open circ…
View article: Quantum trajectories and Page-curve entanglement dynamics
Quantum trajectories and Page-curve entanglement dynamics Open
We consider time dynamics of entanglement entropy between a filled fermionic system and an empty reservoir. We consider scenarios (i) where the system is subjected to a dephasing mechanism and the reservoir is clean, thereby emulating expa…
View article: Piezoelectric Bending Measurements: Noise Versus Signals
Piezoelectric Bending Measurements: Noise Versus Signals Open
Many 2D and 1D emerging materials have applications as piezoelectric energy generators and as piezotronic materials for intelligent systems. Cyclic straining of the devices on flexible substrates is considered a reliable technique to quant…
View article: Quantum light generation with ultra-high spatial resolution in 2D semiconductors via ultra-low energy electron irradiation
Quantum light generation with ultra-high spatial resolution in 2D semiconductors via ultra-low energy electron irradiation Open
Single photon emitters (SPEs) are building blocks of quantum technologies. Defect engineering of 2D materials is ideal to fabricate SPEs, wherein spatially deterministic and quality-preserving fabrication methods are critical for integrati…
View article: Non-technical skills for neurosurgeons: An international survey
Non-technical skills for neurosurgeons: An international survey Open
View article: Tunable nonlinear damping in MoS2 nanoresonator
Tunable nonlinear damping in MoS2 nanoresonator Open
Nonlinear damping plays a significant role in several areas of physics, including the dynamics of nanoresonators. However, many aspects remain unclear, and the microscopic source of nonlinear damping is still an active area of research. In…
View article: Graphene Resonant Pressure Sensor with Ultrahigh Responsivity
Graphene Resonant Pressure Sensor with Ultrahigh Responsivity Open
Graphene has good mechanical properties including large Young's modulus, making it ideal for many resonant sensing applications. Nonetheless, the development of graphene based sensors has been limited due to difficulties in fabrication, en…
View article: Mixed Nonlinear Response and Transition of Nonlinearity in a Piezoelectric Membrane
Mixed Nonlinear Response and Transition of Nonlinearity in a Piezoelectric Membrane Open
Nonlinearities play a critical role in the dynamics of mechanical resonators, enhancing sensitivity and enabling signal manipulation. Understanding the parameters affecting nonlinearities is crucial for developing strategies to counteract …
View article: Independently Reconfigurable Internal Loss and Resonance Shift in an Interferometer-Embedded Optical Cavity
Independently Reconfigurable Internal Loss and Resonance Shift in an Interferometer-Embedded Optical Cavity Open
Optical cavities find diverse uses in lasers, frequency combs, optomechanics, and optical signal processors. Complete reconfigurability of the resonant frequency as well as the loss enables development of generic field programmable cavitie…
View article: Nanomechanical Resonators: Toward Atomic Scale
Nanomechanical Resonators: Toward Atomic Scale Open
The quest for realizing and manipulating ever smaller man-made movable structures and dynamical machines has spurred tremendous endeavors, led to important discoveries, and inspired researchers to venture to previously unexplored grounds. …
View article: Nanomechanical Resonators: Toward Atomic Scale
Nanomechanical Resonators: Toward Atomic Scale Open
The quest for realizing and manipulating ever smaller man-made movable structures and dynamical machines has spurred tremendous endeavors, led to important discoveries, and inspired researchers to venture to new grounds. Scientific feats a…
View article: Qualitative effect of internal resonance on the dynamics of two-dimensional resonator
Qualitative effect of internal resonance on the dynamics of two-dimensional resonator Open
Nonlinear modal interactions and associated internal resonance phenomena have recently been used to demonstrate improved oscillator performance and enhanced sensing capabilities. Here, we show tunable modal interaction in a molybdenum disu…
View article: Independently reconfigurable internal loss and resonance-shift in an interferometer-embedded optical cavity
Independently reconfigurable internal loss and resonance-shift in an interferometer-embedded optical cavity Open
Optical cavities find diverse uses in lasers, frequency combs, optomechanics, and optical signal processors. Complete reconfigurability of the resonant frequency as well as the loss enables development of generic field programmable cavitie…
View article: Nanomechanical spectroscopy of ultrathin silicon nitride suspended membranes
Nanomechanical spectroscopy of ultrathin silicon nitride suspended membranes Open
Mechanical properties of a nanomechanical resonator significantly impact the performance of a resonant Nano-electromechanical system (NEMS) device. We study the mechanical properties of suspended membranes fabricated out of low-pressure ch…
View article: Quantitative probe for in-plane piezoelectric coupling in 2D materials
Quantitative probe for in-plane piezoelectric coupling in 2D materials Open
View article: Effect of internal resonance on the dynamics of MoS2 resonator
Effect of internal resonance on the dynamics of MoS2 resonator Open
Nonlinear modal interactions and associated internal resonance phenomena have recently been used to demonstrate improved oscillator performance and enhanced sensing capabilities. Here, we show tunable modal interaction in a MoS2 resonator.…
View article: Combinatorial Large-Area MoS<sub>2</sub>/Anatase–TiO<sub>2</sub> Interface: A Pathway to Emergent Optical and Optoelectronic Functionalities
Combinatorial Large-Area MoS<sub>2</sub>/Anatase–TiO<sub>2</sub> Interface: A Pathway to Emergent Optical and Optoelectronic Functionalities Open
The interface of transition-metal dichalcogenides (TMDCs) and high-k dielectric transition-metal oxides (TMOs) had triggered umpteen discourses because of the indubitable impact of TMOs in reducing the contact resistances and restra…
View article: Effect of single nanoparticle-nanopore interaction strength on ionic current modulation
Effect of single nanoparticle-nanopore interaction strength on ionic current modulation Open
View article: On-chip silicon photonics based grating assisted vibration sensor
On-chip silicon photonics based grating assisted vibration sensor Open
We present a compact, highly sensitive and scalable on-chip photonic vibration measurement scheme for vibration sensing. The scheme uses a silicon photonic diffraction-grating based sensor integrated underneath a silicon cantilever. We dem…
View article: DNA Translocation Through Vertically Stacked 2D Layers of Graphene & Hexagonal Boron Nitride Heterostructure Nanopore
DNA Translocation Through Vertically Stacked 2D Layers of Graphene & Hexagonal Boron Nitride Heterostructure Nanopore Open
Cost effective, fast and reliable DNA sequencing can be enabled by advances in nanopore based methods, such as the use of atomically thin graphene membranes. However, strong interaction of DNA bases with graphene leads to undesirable effec…
View article: DNA Translocation Through Vertically Stacked 2D Layers of Graphene &amp; Hexagonal Boron Nitride Heterostructure Nanopore
DNA Translocation Through Vertically Stacked 2D Layers of Graphene & Hexagonal Boron Nitride Heterostructure Nanopore Open
Cost effective, fast and reliable DNA sequencing can be enabled by advances in nanopore based methods, such as the use of atomically thin graphene membranes. However, strong interaction of DNA bases with graphene leads to undesirable effec…
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View article: Enhanced all-optical cavity-tuning using graphene
Enhanced all-optical cavity-tuning using graphene Open
All-optical tuning of the resonance of an optical cavity is used to realise optical signal-processing including modulation, switching, and signal-routing. The tuning of optical resonance is dictated by the two primary effects induced by op…
View article: DNA Translocation through Hybrid Bilayer Nanopores
DNA Translocation through Hybrid Bilayer Nanopores Open
Pore functionalization has been explored by several groups as a strategy to control DNA translocation through solid-state nanopores. Here we present a hybrid nanopore system consisting of single-layer graphene and a DNA origami layer to ac…
View article: Nanomechanical Spectroscopy of Ultrathin Silicon Nitride Suspended Membranes
Nanomechanical Spectroscopy of Ultrathin Silicon Nitride Suspended Membranes Open
Mechanical properties of a nanomechanical resonator have a significant impact on the performance of a resonant Nano-electromechanical system (NEMS) device. Here we study the mechanical properties of suspended membranes fabricated out of lo…
View article: DNA Detection Using Programmed Bilayer Nanopores
DNA Detection Using Programmed Bilayer Nanopores Open
Pore-functionalization has been explored by several groups as a strategy to control DNA translocation through solid-state nanopores. Here we present a hybrid nanopore system consisting of single-layer graphene and a DNA origami layer to ac…
View article: DNA Detection Using Programmed Bilayer Nanopores
DNA Detection Using Programmed Bilayer Nanopores Open
Pore-functionalization has been explored by several groups as a strategy to control DNA translocation through solid-state nanopores. Here we present a hybrid nanopore system consisting of single-layer graphene and a DNA origami layer to ac…