Explanipedia

Characterization and Inverse Design of Stochastic Mechanical Metamaterials Using Neural Operators (Adv. Mater. 29/2025) Open

Hanxun Jin, Boyu Zhang, Qianying Cao, Enrui Zhang, Aniruddha Bora , et al. · 2025

3D printed near-infrared high-numerical aperture achromatic metalens Open

Heming Wei, Wen‐Chen Hu, Jingtian Hu, Guoqiang He, Fufei Pang , et al. · 2025

Characterization and Inverse Design of Stochastic Mechanical Metamaterials Using Neural Operators Open

Hanxun Jin, Boyu Zhang, Qianying Cao, Enrui Zhang, Aniruddha Bora , et al. · 2025

Machine learning (ML) is emerging as a transformative tool for the design of mechanical metamaterials, offering properties that far surpass those achievable through lab‐based trial‐and‐error methods. However, a major challenge in current i…

Surface‐Functionalization of Oleate‐Capped Nano‐Emitters for Stable Dispersion in 3D‐Printable Polymers Open

Akhilesh Kumar Pathak, Sachin Prashant Kulkarni, Rachel R. Chan, Chad A. Mirkin, Koray Aydın , et al. · 2024

Two‐photon polymerization 3D‐printing is a well‐known technique for fabricating passive micro/nanoscale structures, such as microlenses and inversely designed polarization splitters. The integration of light emitting nanoparticle (NP) dopa…

Surface-Functionalization of Oleate-Capped Nano-Emitters for Stable Dispersion in 3D-Printable Polymers Open

Akhilesh Kumar Pathak, Sachin Prashant Kulkarni, Rachel R. Chan, Chad A. Mirkin, Koray Aydın , et al. · 2024

Two-photon polymerization (2PP) 3D printing is a well-known technique for fabricating passive micro/nanoscale structures, such as microlenses and inversely designed polarization splitters. The integration of light emitting nanoparticle (NP…

Mechanical Characterization and Inverse Design of Stochastic Architected Metamaterials Using Neural Operators Open

Hanxun Jin, Enrui Zhang, Boyu Zhang, Sridhar Krishnaswamy, George Em Karniadakis , et al. · 2023

Machine learning (ML) is emerging as a transformative tool for the design of architected materials, offering properties that far surpass those achievable through lab-based trial-and-error methods. However, a major challenge in current inve…

Laser-induced ultrasound imaging of multi metal laminate with complex interface Open

Yanjie Zhang, Fengyi Zhang, W. Q. Zhang, Quan Yang, Sridhar Krishnaswamy , et al. · 2023

The corrugated rolling process is a new type of metal clad plate production method, and the high-precision testing of the corrugated interface is of great significance to the improvement of product quality. This paper integrates laser ultr…

Continuous tuning of unidirectional emission wavelength by bending a notched-elliptical polymer microdisk Open

Xiaoming Ma, Heming Wei, Nianqiang Li, Shuzhen Fan, Changfeng Fang , et al. · 2021

An approach of continuously tunable unidirectional emission through bending a notched-elliptical polymer microdisk is proposed. The characteristics of the bending-dependent action are carefully analyzed, and the resonance wavelength for un…

Mechanical Metamaterials: Folding at the Microscale: Enabling Multifunctional 3D Origami‐Architected Metamaterials (Small 35/2020) Open

Zhaowen Lin, Larissa S. Novelino, Heming Wei, Nicolas A. Alderete, Gláucio H. Paulino , et al. · 2020

Non-dispersive wavepackets generated in layered structures by a scanning laser source Open

Zheng Li, Zhonghua Shen, Sridhar Krishnaswamy · 2020

In this article, we describe the use of a continuous-wave laser scanning method to generate non-dispersive surface acoustic wavepackets, which propagate along the sample surface without any waveform change. To achieve this goal, a coated l…

Folding at the Microscale: Enabling Multifunctional 3D Origami‐Architected Metamaterials Open

Zhaowen Lin, Larissa S. Novelino, Heming Wei, Nicolas A. Alderete, Gláucio H. Paulino , et al. · 2020

Mechanical metamaterials inspired by the Japanese art of paper folding have gained considerable attention because of their potential to yield deployable and highly tunable assemblies. The inherent foldability of origami structures enlarges…

Multi-wavelength microresonator based on notched-elliptical polymer microdisks with unidirectional emission Open

Xiaoming Ma, Heming Wei, Shuzhen Fan, Abhishek Kottaram Amrithanath, Jiaxiong Fang , et al. · 2020

A three-dimensional notched-elliptical microdisk with a wavelength-size notch on the boundary is proposed as a multi-wavelength and unidirectional emission lasing source. The device contains multiple properly designed two-dimensional whisp…

Highly sensitive magnetic field microsensor based on direct laser writing of fiber-tip optofluidic Fabry–Pérot cavity Open

Dengwei Zhang, Heming Wei, Huizhu Hu, Sridhar Krishnaswamy · 2020

In this paper, a polymer micro-Fabry–Pérot interferometer (FPI) fabricated via direct laser writing using two-photon polymerization techniques on a single mode fiber tip is proposed, designed, simulated, and experimentally demonstrated as …

Miniature resonator sensor based on a hybrid plasmonic nanoring Open

Xiaoming Ma, Shuzhen Fan, Heming Wei, Zhiyuan Zuo, Sridhar Krishnaswamy , et al. · 2019

A miniature resonator sensor based on a hybrid plasmonic nanoring with a gold layer coated uniformly on the outer boundary is described and investigated. By using the Lumerical finite-difference-time-domain (FDTD) method, the optimized siz…

Evaluation of surface roughness of a machined metal surface based on laser speckle pattern Open

Dong Xu, Quan Yang, Feng Dong, Sridhar Krishnaswamy · 2018

The surface roughness of a machined metal surface is crucial to its appearance and performance. There are hardly any in‐situ methods for surface roughness measurement of moving surfaces. A study of the digital speckle patterns generated by…

Make-in-MCE: A Differentiating Alumni Initiative in an Engineering College Open

Sridhar Krishnaswamy, Goyal Mahendra, K. Jayantha, H. J. Amarendra, B. Uma · 2017

Alumni associations present first-hand opportunities for educational institutions to understand the ever-changing demands and expectations of the industry and to develop their curriculum accordingly. Alumni given their professional experie…

Grain size distribution measurement of Ti-6Al-4V plate using laser-ultrasonics Open

Feng Dong, Quan Yang, Xiaocheng Wang, Sridhar Krishnaswamy · 2017

As the most widely used titanium alloy, Ti-6Al-4V has wide range of applications in aerospace industry and medical prostheses. Grain size is a significant parameter that should be controlled during material processing for the reason that i…

Photoreduction and Thermal Properties of Graphene-Based Flexible Films Open

Gautam Naik, Sridhar Krishnaswamy · 2017

In the present study, we report on an efficient method for large-area photoreduction of graphene oxide flexible films. The laser-based reduction can be carried out in situ and can be tuned to attain the properties required. A systematic st…

A novel Wiener process model with measurement errors for degradation analysis Open

Zhihua Wang, Junxing Li, Yongbo Zhang, Huimin Fu, Chengrui Liu , et al. · 2016

A novel Wiener process model With meAsurement errors for degrAdAtion AnAlysisAnAlizA degrAdAcji z zAstosoWAniem noWego modelu procesu WienerA uWzględniAjącego błędy pomiAroWeDegradation analysis can be used to assess reliability for comple…

Room-Temperature Humidity Sensing Using Graphene Oxide Thin Films Open

Gautam Naik, Sridhar Krishnaswamy · 2015

In this article, we report on a room-temperature humidity sensing device using graphene oxide (GO) thin films synthesized by chemical exfoliation. Changes in the device conductivity are measured for varying relative humidity in the experim…

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