Results 261 to 270 of about 1,856,713 (355)

Time and phase alignment of distributed gateways: Theoretical analysis and experimental demonstration

International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 47-59, January/February 2026.
The performance limitation in multiple‐input multiple‐output (MIMO) feeder links due to time and phase misalignment of the ground stations is investigated. Time and phase distribution over optical fiber is considered as an approach to achieve the synchronization requirements.
Eriserdi Mollaymeri, Thomas Delamotte, Andreas Knopp   +2 more
wiley   +1 more source

Evaluation of the Efficacy of the 755 nm Picosecond Laser in Eliminating Pigmented Skin Lesions after a Single Treatment Based on Photographic Analysis with Polarised Light. [PDF]

J Clin Med
Zawodny P, Wahidi N, Zawodny P, Duchnik E, Stój E, Malec WR, Kulaszyńska M, Skonieczna-Żydecka K, Sieńko J.   +8 more
europepmc   +1 more source

Evaluation of Wrinkle and Dermal Thickness in the Forearm before and after Picosecond Laser Therapy.

J Cutan Aesthet Surg
Wardhani PH, Prakoeswa CRS, Listiawan MY.   +2 more
europepmc   +1 more source

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Fractional 1064 nm Picosecond Laser in Treatment of Melasma and Skin Rejuvenation in Asians, A Prospective Study

Lasers in Surgery and Medicine, 2021
Facial melasma is a disfiguring pigmentation and occurs frequently with aging skin. Topical treatment alone was often suboptimal. A recent study showed that fractional picosecond laser has promising result in benign pigmentary lesions. This study aims to
C. S. Wong, M. W. Chan, S. Shek, C. Yeung, H. Chan   +4 more
semanticscholar   +1 more source

Micromachined High Frequency 1–3 Piezocomposite Transducer Using Picosecond Laser

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2021
In this article, a PZT/Epoxy 1-3 piezoelectric composite based on picosecond laser etching technology is developed for the fabrication of high-frequency ultrasonic transducer.
Jie Xu, Zhile Han, Ninghao Wang, Zhangjian Li, Jiabing Lv, Xinle Zhu, Yaoyao Cui, X. Jian   +7 more
semanticscholar   +1 more source

A Systematic Review of Picosecond Laser in Dermatology: Evidence and Recommendations

Lasers in Surgery and Medicine, 2020
The use of picosecond laser in dermatology was originally focused on optimizing the removal of unwanted tattoos. Subsequent advances in this technology have broadened its clinical indications to include treatment of benign pigmented lesions, photodamage,
Douglas C Wu, M. Goldman, Heidi Wat, H. Chan   +3 more
semanticscholar   +1 more source

Picosecond laser electronic excitation tagging velocimetry using a picosecond burst-mode laser

Applied Optics, 2021
Detailed characterizations of picosecond laser electronic excitation tagging (PLEET) in pure nitrogen ( N 2 ) and air with a 24 ps burst-mode laser system have been conducted. The burst-mode laser system is seeded with a 200 fs broadband seeding laser to achieve short pulse duration. As a
Zhili Zhang, Naibo Jiang, Mikhail N. Slipchenko, Jason G. Mance, Sukesh Roy   +4 more
openaire   +2 more sources

Picosecond laser texturing on titanium alloy for biomedical implants in cell proliferation and vascularization.

Journal of Biomedical Materials Research. Part B - Applied biomaterials, 2020
Introducing specific textures to titanium alloy implant surface is helpful to modify the surface properties of materials. In this article, biomedical TC4 (Ti-6Al-4V) alloy was textured by a 10-ps infrared laser.
Zhou Yu, S. Yin, Wenjie Zhang, Xinquan Jiang, Jun Hu   +4 more
semanticscholar   +1 more source

A Prospective, Split‐Face, Randomized Study Comparing a 755‐nm Picosecond Laser With and Without Diffractive Lens Array in the Treatment of Melasma in Asians

Lasers in Surgery and Medicine, 2020
Treatment of melasma with lasers remains a challenge due to its limited clinical efficacy in addition to high rates of recurrence and side effects. Recently, picosecond lasers have shown favorable results in treatment of benign pigmented lesions.
W. Manuskiatti, Chadakan Yan, Ploypailin Tantrapornpong, K. A. Cembrano, Thanya Techapichetvanich, R. Wanitphakdeedecha   +5 more
semanticscholar   +1 more source

Objective and Long‐Term Evaluation of the Efficacy and Safety of a 1064‐nm Picosecond Laser With Fractionated Microlens Array for the Treatment of Atrophic Acne Scar in Asians

Lasers in Surgery and Medicine, 2020
Fractional 1064‐nm picosecond‐domain laser has recently been utilized for the treatment of atrophic acne scars and showed promising results. However, data on the safety and efficacy of this procedure in dark‐skinned patients are limited. This prospective,
W. Manuskiatti, P. Punyaratabandhu, Ploypailin Tantrapornpong, Chadakan Yan, K. A. Cembrano   +4 more
semanticscholar   +1 more source