Results 21 to 30 of about 58,071 (294)

Studying of photoluminescence property of carbazole unit based push-pull oligomers

AIP Advances, 2019
The photoluminescence (PL) property of two push-pull oligomers named C2B and DC2B, comprising of carbazole and difluoroboron β-diketonate units, were probed by many optical tests.
Ying Chen, Ran Lu, Ning Sui, Ye Zhang, Wenyan Wang, Zhi-hui Kang, Ying-hui Wang, Han-zhuang Zhang   +7 more
doaj   +1 more source

Revealing Local Temporal Profile of Laser Pulses of Intensity above 10¹⁴ W/cm²

Sensors, 2023
We demonstrated a method for in situ temporal characterization of an intense femtosecond laser pulse around its focus where the laser intensity exceeds 1014 W/cm2.
Qi Lu, Xiang Zhang, Arnaud Couairon, Yi Liu   +3 more
doaj   +1 more source

Optical damage limit of efficient spintronic THz emitters

iScience, 2021
Summary: THz pulses are generated from femtosecond pulse-excited ferromagnetic/nonmagnetic spintronic heterostructures via inverse spin Hall effect. The highest possible THz signal strength from spintronic THz emitters is limited by the optical damage ...
Sandeep Kumar, Anand Nivedan, Arvind Singh, Yogesh Kumar, Purnima Malhotra, Marc Tondusson, Eric Freysz, Sunil Kumar   +7 more
doaj  

Medical femtosecond laser

Journal of the European Optical Society-Rapid Publications, 2023
Medical femtosecond laser devices are used in dermatology for non-linear high-resolution imaging to obtain non-invasive and label-free optical skin biopsies (multiphoton tomography) as well as in ophthalmology for refractive corneal surgery and cataract surgery. Applications of commercial certified multiphoton tomographs include early detection of skin
openaire   +2 more sources

Femtosecond laser ablation of the stapes [PDF]

Journal of Biomedical Optics, 2009
A femtosecond laser, normally used for LASIK eye surgery, is used to perforate cadaveric human stapes. The thermal side effects of bone ablation are measured with a thermocouple in an inner ear model and are found to be within acceptable limits for inner ear surgery.
McCaughey, Ryan G, Sun, Hui, Rothholtz, Vanessa S, Juhasz, Tibor, Wong, Brian JF   +4 more
openaire   +5 more sources

X-ray free electron laser observation of ultrafast lattice behaviour under femtosecond laser-driven shock compression in iron

Scientific Reports, 2023
Over the past century, understanding the nature of shock compression of condensed matter has been a major topic. About 20 years ago, a femtosecond laser emerged as a new shock-driver. Unlike conventional shock waves, a femtosecond laser-driven shock wave
Tomokazu Sano, Tomoki Matsuda, Akio Hirose, Mitsuru Ohata, Tomoyuki Terai, Tomoyuki Kakeshita, Yuichi Inubushi, Takahiro Sato, Kohei Miyanishi, Makina Yabashi, Tadashi Togashi, Kensuke Tono, Osami Sakata, Yoshinori Tange, Kazuto Arakawa, Yusuke Ito, Takuo Okuchi, Tomoko Sato, Toshimori Sekine, Tsutomu Mashimo, Nobuhiko Nakanii, Yusuke Seto, Masaya Shigeta, Takahisa Shobu, Yuji Sano, Tomonao Hosokai, Takeshi Matsuoka, Toshinori Yabuuchi, Kazuo A. Tanaka, Norimasa Ozaki, Ryosuke Kodama   +30 more
doaj   +1 more source

Flap Thickness and the Risk of Complications in Mechanical Microkeratome and Femtosecond Laser In Situ Keratomileusis: A Literature Review and Statistical Analysis

Diagnostics, 2021
Introduction: A recent Cochrane review found no difference in visual acuity outcomes between femtosecond-assisted laser in situ keratomileusis (LASIK) and LASIK using mechanical microkeratomes (MMKs).
Piotr Kanclerz, Ramin Khoramnia
doaj   +1 more source

Etching-assisted femtosecond laser modification of hard materials

Opto-Electronic Advances, 2019
With high hardness, high thermal and chemical stability and excellent optical performance, hard materials exhibit great potential applications in various fields, especially in harsh conditions.
Liu Xue-Qing, Bai Ben-Feng, Chen Qi-Dai, Sun Hong-Bo   +3 more
doaj   +1 more source

Use of the Femtosecond Lasers in Ophthalmology [PDF]

EPJ Web of Conferences, 2018
Femtosecond laser (FSL) is an infrared laser with a wavelength of 1053 nm. FS laser works producing photodisruption or photoionization of the optically transparent tissue such as cornea. Currently FS lasers have a wide range of applications in ophthalmic surgery.
Roszkowska A. M., Urso M., Signorino A., Aragona P.   +3 more
openaire   +3 more sources

Improved Femtosecond Laser-Assisted Phacoemulsification of Hard Nucleus Cataract

Oftalʹmologiâ, 2020
Purpose: The development and clinical study of improved femtosecond laser-assisted phacoemulsification (PE) technology of hard nucleus cataract.Patients and methods. Improved femtosecond laser-assisted PE of hard nucleus cataract performed in 83 patients
Yu. N. Yousef, G. V. Voronin, S. N. Yousef, A. S. Vvedenskiy, L. Alkharki, N. Y. Shkolyarenko, E. V. Reznikova   +6 more
doaj   +1 more source