Results 51 to 60 of about 3,712 (185)

Ultrahigh-speed micromachining of sapphire by enhancing laser absorption

Communications Engineering
Fine micromachining of sapphire using ultrafast lasers via nonlinear absorptions has been extensively studied. However, severe damage, along with the low material removal rate, limits the precision and machining speed. Here we use transient and selective
Guoqi Ren, Huijie Sun, Chaoran Wei, Yusuke Ito   +3 more
doaj   +1 more source

Thermally Drawn Bioelectric Catheters: Enabling Proprioceptive Endovascular Navigation

Advanced Intelligent Systems, EarlyView.
This work introduces a novel bioelectric navigation system eliminates the need for harmful fluoroscopy during endovascular surgeries. A bespoke 16‐electrode catheter is fabricated using rapid thermal drawing and laser micro‐machining. Paired with a real‐time tracking algorithm fusing vascular geometry detection and distance estimation, this technology ...
Alex Ranne, Heiko Maier, Jinshi Zhao, Songli Moey, Ayhan Aktas, Manik Chana, Burak Temelkuran, Nassir Navab, Ferdinando Rodriguez y Baena   +8 more
wiley   +1 more source

In-Line Fiber Michelson Interferometer for Enhancing the Q Factor of Cone-Shaped Inwall Capillary Coupled Resonators

IEEE Photonics Journal, 2018
An in-line fiber Michelson interferometer in a cone-shaped inwall capillary with the whispering gallery mode microsphere resonator integrated inside is demonstrated for enhancing the Q factor, which is fabricated on the etched capillary by the ...
Xiaobei Zhang, Huawen Bai, Haiyang Pan, Jiawei Wang, Ming Yan, Hai Xiao, Tingyun Wang   +6 more
doaj   +1 more source

Neurovascular coupling in bone regeneration: Mechanisms, advanced biomaterials and challenges

BMEMat, EarlyView.
This figure illustrates various material strategies for neurovascularized bone regeneration, including electroactive scaffolds, ion‐loaded materials, drug delivery systems, surface modifications, cells/cell products, growth factors, and peptides. These approaches aim to synergistically promote the regeneration of neural, vascular, and bone tissues ...
Yixin Ma, Nan Jiang, Liyuan Chen, He Zhang, Xinjia Cai, Karan Gulati, Danqing He, Zhigang Cai, Yan Liu   +8 more
wiley   +1 more source

Interface Engineering in Piezoelectric‐on‐Insulator Platforms: Coupling of Electrons, Photons, and Phonons for Multifunctional Integration

Electron, EarlyView.
The underlying interface physics and engineering strategies across key POI material systems, including LiNbO3/Si, LiNbO3/SiC, LiNbO3/diamond, and AlN/diamond, were reviewed. The key engineering strategies such as atomic‐scale bonding optimization, nanostructuring, ultrathin phonon‐bridge interlayers, and ferroelectric domain wall engineering for ...
Yunjia Bao, Zhiqiang Wang, Rongbang Yang, Gongbin Tang, Ruiqiang Guo, Kunfeng Chen, Wen Hu   +6 more
wiley   +1 more source

Changing the integrity of the material surface by combining laser surface texturing and PVD magnetron sputtering technologies

Acta Polytechnica CTU Proceedings
The presented research combines laser micromachining technology (LST, Laser Surface Texturing) using an ultra-short femtosecond laser beam and PVD deposition of thin layers using magnetron sputtering. This combination has multiple benefits.
Michal Krafka, Totka Bakalova, Lucie Svobodová, Tomáš Primus, Magdalena Mrózek, Milan Bouša   +5 more
doaj   +1 more source

Direct laser micromachining of superconducting terahertz Josephson plasma emitters [PDF]

AIP Advances
We demonstrate a rapid, maskless fabrication method for superconducting terahertz Josephson plasma emitters (JPEs) based on direct ultraviolet laser micromachining of Bi2Sr2CaCu2O8+δ (Bi-2212) single crystals. Although machining debris is formed near the
Reo Yamaguchi, Takuma Sakurai, Kazuhiro Yamaki, Akinobu Irie, Junichiro Kato, Taichiro Nishio, Shigeyuki Ishida, Hiroshi Eisaki, Manabu Tsujimoto   +8 more
doaj   +1 more source

Artificial structures for human‐machine interfaces with closed‐loop interaction

FlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu, Taisong Pan, Siqi Chen, Yiting Zhang, Yuan Lin   +4 more
wiley   +1 more source

Photocurable Smart Materials for Femtosecond Laser Micro/Nano‐3D/4D Printing: Toward Interdisciplinary Applications

Interdisciplinary Materials, EarlyView.
This review examines intelligent microsystems fabricated via Fs‐laser two‐photon polymerization, covering design, fabrication compatibility, and actuation methods. It highlights applications in actuators, sensors, micromachines, and soft microrobots, while stressing advances in materials, structures, and system integration.
Chang‐Xu Li, Yu‐Qing Liu, Wei‐Jian Zhong, Dong‐Dong Han, Yong‐Lai Zhang   +4 more
wiley   +1 more source

Femtosecond Beam Transformation Effects in Water, Enabling Increased Throughput Micromachining in Transparent Materials

Applied Sciences, 2019
Femtosecond lasers are widely applied in scientific and industrial fields. Recent trends in the laser market show decreasing prices for femtosecond units, which will ultimately lead to the opening of new markets that were inaccessible in the past due to ...
Simas Butkus, Eugenijus Gaižauskas, Lina Mačernytė, Vytautas Jukna, Domas Paipulas, Valdas Sirutkaitis   +5 more
doaj   +1 more source