46 citations · 83 across the 17 of their papers we have counts for
19 papers
Portable Vector NV-Diamond Magnetometer for Shot-Noise-Limited, Drift-Free Operation in Unshielded Environments
Annirudh K P, Vinayak Rane, Shradha Atakar +5
Ensemble nitrogen-vacancy (NV) diamond magnetometers combine high sensitivity with vector-field reconstruction, but practical deployment is limited by errors arising from high-freq…
Development of a Compton Imager Setup
Anuraag Arya, Harmanjeet Singh Bilkhu, Sandeep Vishwakarma +16
Hard X-ray photons with energies in the range of hundreds of keV typically undergo Compton scattering when they are incident on a detector. In this process, an incident photon depo…
Smart structural health monitoring (SHM) system for on-board localization of defects in pipes using torsional ultrasonic guided waves
Sheetal Patil, Sauvik Banerjee, Siddharth Tallur
Most reported research for monitoring health of pipelines using ultrasonic guided waves (GW) typically utilize bulky piezoelectric transducer rings and laboratory-grade ultrasonic…
High dynamic-range and portable magnetometer using ensemble nitrogen-vacancy centers in diamond
Himanshu Kumar, Dasika Shishir, Maheshwar Mangat +2
Nitrogen vacancy (NV) centers in diamonds have been explored for realizing a wide range of sensing applications in the last decade due to their unique quantum properties. Here we r…
Classification of Various Types of Damages in Honeycomb Composite Sandwich Structures using Guided Wave Structural Health Monitoring
Shruti Sawant, Jeslin Thalapil, Siddharth Tallur +2
Classification of damages in honeycomb composite sandwich structure (HCSS) is important to decide remedial actions. However, previous studies have only detected damages using devia…
Unsupervised deep learning framework for temperature-compensated damage assessment using ultrasonic guided waves on edge device
Pankhi Kashyap, Kajal Shivgan, Sheetal Patil +4
Fueled by the rapid development of machine learning (ML) and greater access to cloud computing and graphics processing units (GPUs), various deep learning based models have been pr…
Beyond 5 GHz excitation of a ZnO-based high-overtone bulk acoustic resonator on SiC substrate
Padmalochan Panda, Soumyadip Chatterjee, Siddharth Tallur +1
This work reports on the fabrication and characterization of an Au/ZnO/Pt-based high-overtone bulk acoustic resonator (HBAR) on SiC substrates. We evaluate its microwave characteri…
Daksha: On Alert for High Energy Transients
Varun Bhalerao, Santosh Vadawale, Shriharsh Tendulkar +45
We present Daksha, a proposed high energy transients mission for the study of electromagnetic counterparts of gravitational wave sources, and gamma ray bursts. Daksha will comprise…
Science with the Daksha High Energy Transients Mission
Varun Bhalerao, Disha Sawant, Archana Pai +72
We present the science case for the proposed Daksha high energy transients mission. Daksha will comprise of two satellites covering the entire sky from 1~keV to ~MeV. The prima…
Effectiveness of Multi-Physics Numerical Model in Simulating Accelerated Corrosion with Spatial and Temporal Non Uniformity
Shanmukha Shetty, Sauvik Banerjee, Siddharth Tallur +1
This study is motivated by the need to develop an efficient numerical model to simulate non-uniform interfacial degradation of reinforcing steel in concrete in an accelerated corro…
Environmental variation compensated damage classification and localization in ultrasonic guided wave SHM using self-learnt features and Gaussian mixture models
Shruti Sawant, Sheetal Patil, Jeslin Thalapil +2
Conventional damage localization algorithms used in ultrasonic guided wave-based structural health monitoring (GW-SHM) rely on physics-defined features of GW signals. In addition t…
Smart cathodic protection system for real-time quantitative assessment of corrosion of sacrificial anode based on Electro-Mechanical Impedance (EMI)
Durgesh Tamhane, Jeslin Thalapil, Sauvik Banerjee +1
Corrosion of metal structures is often prevented using cathodic protection systems, that employ sacrificial anodes that corrode more preferentially relative to the metal to be prot…
Design and analysis of electro-optic modulators based on high contrast gratings (HCGs) in AlGaN/GaN heterostructures
Pallabi Das, Shlok Vaibhav Singh, Siddharth Tallur
Recently High Electron Mobility Transistor (HEMT) inspired III-V electro-optic modulator topologies were proposed for realizing high speed electro-optic modulators leveraging plasm…
Low cost passive pH sensor fabricated on scotch tape
Ayan Majumder, Subrat Kumar Pradhan, Kasturi Saha +1
We report the fabrication and characterization results of a simple and low-cost pH sensor fabricated using a graphite pencil to define a working electrode and silver paste to defin…
Phase sensitive detection of extent of corrosion in steel reinforcing bars using eddy currents
Indrani Mukherjee, Jinit Patil, Sauvik Banerjee +1
Corrosion of steel bars in reinforced cement concrete (RCC) structures leads to premature deterioration and increase in life cycle maintenance costs. Non-destructive testing (NDT)…
Large Piezoelectric-Polymer Composites For RF Acoustic Resonators
Pallabi Das, Siddharth Tallur
While piezoelectric transduction enables designing acoustic resonators operating at multi-GHz frequencies, the deposition of piezoelectric materials typically requires high tempera…
Design and analysis of high electron mobility transistor (HEMT) inspired III-V electro-optic modulator topologies
Pallabi Das, Tian-Li Wu, Siddharth Tallur
III-V heterostructure based high electron mobility transistors (HEMTs) offer superior performance as compared to CMOS silicon transistors owing to the high mobility in the 2D elect…
Modeling the colors of phase noise in optomechanical oscillators
Cijy Mathai, Sunil A. Bhave, Siddharth Tallur
Optomechanical oscillators (OMOs) combine the co-existing high quality factor mechanical and optical resonances in an integrated device to realize low phase noise RF oscillations.…
Synchronization of Chaotic Oscillators With Partial Linear Feedback Control
Keyur Mistry, Sudeshna Dash, Siddharth Tallur
We present a methodology for synchronization of chaotic oscillators with linear feedback control. The proposed method is based on analyzing the chaotic oscillator as a multi-mode l…