Results 51 to 60 of about 5,985 (214)

Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture

Advanced Healthcare Materials, EarlyView.
This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus, Md Osman Goni Nayeem, Aastha Shah, Jason Hou, Shrihari Viswanath, Maya Eusebio, David Sadat, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren   +9 more
wiley   +1 more source

Nanoscale-Precision Removal of Copper in Integrated Circuits Based on a Hybrid Process of Plasma Oxidation and Femtosecond Laser Ablation

Micromachines, 2021
Copper (Cu) is the main interconnect conductor for integrated circuits (IC), and its processing quality is very important to device performance. Herein, a hybrid process of plasma oxidation and femtosecond laser (fs-laser) ablation was proposed for the ...
Shuai Wang, Yaoyu Wang, Shizhuo Zhang, Lingfeng Wang, Shuai Chen, Huai Zheng, Chen Zhang, Sheng Liu, Gary J. Cheng, Feng Liu   +9 more
doaj   +1 more source

Fabrication of a microresonator-fiber assembly maintaining a high-quality factor by CO2 laser welding

, 2015
We demonstrate fabrication of a microtoroid resonator of a high-quality (high-Q) factor using femtosecond laser three-dimensional (3D) micromachining. A fiber taper is reliably assembled to the microtoroid using CO2 laser welding.
Cheng, Ya, Fang, Zhiwei, Lin, Jintian, Liu, Zhengming, Qiao, Lingling, Wang, Min, Yao, Jinping   +6 more
core   +1 more source

Limitations to laser machining of silicon using femtosecond micro-Bessel beams in the infrared [PDF]

, 2015
Citation: Grojo, D., Mouskeftaras, A., Delaporte, P., & Lei, S. T. (2015). Limitations to laser machining of silicon using femtosecond micro-Bessel beams in the infrared. Journal of Applied Physics, 117(15), 7.
Alexandros Mouskeftaras, David Grojo, Lide D., Philippe Delaporte, Shuting Lei   +4 more
core   +3 more sources

Resistive Heating for Inducing Localized Crystal Growth in Organic Thin Film Devices

Advanced Materials Technologies, EarlyView.
Rubrene thin films are promising for organic optoelectronics due to high hole mobility. However, uncontrolled crystallization and grain boundaries from standard thermal processing hinder lateral device scalability. This work presents femtosecond‐laser micromachining and patterned resistive heating to induce localized, deterministic crystallization ...
Anna‐Lena Hofmann, Roozbeh Irandoost, Moritz Nützel, Tobias Antrack, Wooik Jang, Markas Sudzius, Hrisheekesh Thachoth Chandran, Gang Li, Johannes Benduhn, Karl Leo   +9 more
wiley   +1 more source

An Experimental Study of Multiphoton Ionization in Fused Silica at IR and Visible Wavelengths

Photonics, 2023
We present the results of an experimental study of multiphoton ionization in fused silica, using a linearly polarized femtosecond Satsuma fiber laser with an active medium based on Yb+3 ions, at 515 -nm and 1030 -nm wavelengths.
Anna Bogatskaya, Yulia Gulina, Nikita Smirnov, Ilia Gritsenko, Sergey Kudryashov, Alexander Popov   +5 more
doaj   +1 more source

Femtosecond‐Laser‐Fabricated 3D CYTOP Microfluidic Chips Enabling Super‐Resolution Live Imaging of Cell Behavior in Confined Microspaces

Advanced Materials Technologies, EarlyView.
Using two‐photon polymerization of SU‐8 together with mold processing allowed the creation of defect‐free, flexible 3D microfluidic structures with sub‐micrometer precision in CYTOP. The fabricated CYTOP microfluidic chips enabled super‐resolution imaging of cancer cells in the microchannels, clearly visualizing previously undetectable fine structural ...
Koji Sugioka, Mirai Hanzawa, Kotaro Obata, Sota Matsumoto, Masatoshi Takagi, Asako Sakaue‐Sawano, Asako Tosaki, Satoshi Shimozono, Felix Sima, Hiroyuki Kawano, Takuro Tojima, Daisuke Miyashiro, Kazunari Ozasa, Yasutaka Hanada, Godai Miyaji, Akihiko Nakano, Atsushi Miyawaki   +16 more
wiley   +1 more source

Laser Induced Damage Studies in Borosilicate Glass Using nanosecond and sub nanosecond pulses

, 2016
The damage mechanism induced by laser pulse of different duration in borosilicate glass widely used for making confinement geometry targets which are important for laser driven shock multiplication and elongation of pressure pulse, is studied.
Chaurasia, S., Munda, D. S., Rastogi, Vinay   +2 more
core   +1 more source

Design and control of laser micromachining workstation [PDF]

, 2012
The production process of miniature devices and microsystems requires the utilization of non-conventional micromachining techniques. In the past few decades laser micromachining has became micro-manufacturing technique of choice for many industrial and ...
Baran, Eray Abdurrahman, Golubovic, Edin, Nergiz, Ahmet Ozcan, Nergiz, Ahmet Özcan, Sabanovic, Asif, Shoukry Mohammed Khalil, Islam, Şabanoviç, Asif   +6 more
core   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source