Results 21 to 30 of about 108,805 (248)

Amplification of Ti: sapphire femtosecond laser pulses by Z- scheme Regenerative Amplifier [PDF]

مجله علوم و فنون هسته‌ای, 2023
In this study, the amplification of Ti: sapphire laser pulses in a regenerative amplifier with Z geometric arrangement has been demonstrated based on chirped pulse amplification method.
F. Hajiesmaeilbaigi, E.S. Bostandoost, A.S. Motamedi, H. Razzaghi   +3 more
doaj   +1 more source

Improving Signal and Photobleaching Characteristics of Temporal Focusing Microscopy with the Increase in Pulse Repetition Rate

Methods and Protocols, 2019
Wide-field temporal focused (WF-TeFo) two-photon microscopy allows for the simultaneous imaging of a large planar area, with a potential order of magnitude enhancement in the speed of volumetric imaging.
Viktoras Lisicovas, Bala Murali Krishna Mariserla, Chakradhar Sahoo, Reuben T. Harding, Michael K. L. Man, E Laine Wong, Julien Madéo, Keshav M. Dani   +7 more
doaj   +1 more source

2D Saturable Absorbers for Fibre Lasers

Applied Sciences, 2015
Two-dimensional (2D) nanomaterials are an emergent and promising platform for future photonic and optoelectronic applications. Here, we review recent progress demonstrating the application of 2D nanomaterials as versatile, wideband saturable absorbers ...
Robert I. Woodward, Edmund J. R. Kelleher   +1 more
doaj   +1 more source

Properties of Scalable Chirped-Pulse Optical Comb in Erbium-Doped Ultrafast All-Fiber Ring Laser

Fibers, 2021
We report on a scalable chirped-pulse Er-doped all-fiber laser, passively mode-locked by single-wall carbon nitride nanotubes. The average output power is ~15 mW, which corresponds to a peak power of ~77 W, and pulse energy of ~1.9 nJ and was achieved ...
Ilya O. Orekhov, Dmitriy A. Dvoretskiy, Stanislav G. Sazonkin, Yan Z. Ososkov, Anton O. Chernutsky, Aleksander Y. Fedorenko, Lev K. Denisov, Valeriy E. Karasik   +7 more
doaj   +1 more source

Nonthermal phase transitions in semiconductors induced by a femtosecond extreme ultraviolet laser pulse [PDF]

, 2013
Part of Focus on High Energy Density Physics. In this paper, we present a novel theoretical approach, which allows the study of nonequilibrium dynamics of both electrons and atoms/ions within free-electron laser excited semiconductors at femtosecond time
Jeschke, H. O., Ziaja, Beata, Jeschke, Harald O., Medvedev, Nikita   +3 more
core   +1 more source

Infectious Keratitis in Corneal Graft following Astigmatic Keratotomy: A Case Report and Literature Review

Case Reports in Ophthalmology, 2022
Femtosecond laser-assisted astigmatic keratotomy (FSAK) is recognized as a safe and effective therapeutic option for addressing high corneal astigmatism in corneal transplants. Although the incidence of corneal infection after FSAK in corneal transplants
Majed AlKharashi, Wael Otaif, Rakan S. Al-Essa   +2 more
doaj   +1 more source

The art and science of femtosecond laser writing [PDF]

, 2009
We demonstrate how femtosecond laser writing can challenge common beliefs in optics. Recently discovered phenomena of quill writing related to self-assembled nanostructuring in glasses and non-reciprocal laser writing in crystals are ...
Kazansky, P.G., Kazuyuki Hirao, Hirao, K., Yuri P. Svirko, Svirko, Y.P., Shimotsuma, Y., Yasuhiko Shimotsuma, Peter G. Kazansky, Martynas Beresna, Beresna, Martynas   +9 more
core   +1 more source

Refining the Performance of mid-IR CPA Laser Systems Based on Fe-Doped Chalcogenides for Nonlinear Photonics

Photonics, 2023
The chirped pulse amplification (CPA) systems based on transition-metal-ion-doped chalcogenide crystals are promising powerful ultrafast laser sources providing access to sub-TW laser pulses in the mid-IR region, which are highly relevant for essential ...
Andrey Pushkin, Fedor Potemkin
doaj   +1 more source

Femtosecond optoinjection of intact tobacco BY-2 cells using a reconfigurable photoporation platform [PDF]

, 2013
A tightly-focused ultrashort pulsed laser beam incident upon a cell membrane has previously been shown to transiently increase cell membrane permeability while maintaining the viability of the cell, a technique known as photoporation.
Torrance Lesley, Gunn-Moore Frank J., Tomás Cizmár, Alison G. Roberts (484836), Lesley Torrance, Roberts Alison G., Lesley Torrance (315753), Heisterkamp, Alexander, Claire A. Mitchell, Gunn-Moore, Frank J., Torrance, Lesley, Dholakia, Kishan, Frank J Gunn-Moore, Dholakia, K., Kishan Dholakia, Gunn-Moore, F.J., Cizmár, T., Alison G. Roberts, Cizmar, Tomas, Stefan Kalies (388164), Heisterkamp Alexander, Heisterkamp, A., Dholakia Kishan, Er Heisterkamp, Kalies Stefan, Kalies, Stefan, Roberts, Alison G., Stefan Kalies, Cizmár Tomás, Mitchell, C.A., Alison G Roberts, Roberts, A.G., Kalies, S., Tomás Cizmár (484835), Claire A Mitchell, Kishan Dholakia (426528), Torrance, L., Alexander Heisterkamp (150235), Frank J. Gunn-moore, Claire A. Mitchell (484834), Frank J. Gunn-Moore (400582), Alexander Heisterkamp, Mitchell, Claire A., Mitchell Claire A.   +43 more
core   +2 more sources

Fibre Bragg grating fabrication in germanosilicate fibres with 244nm femtosecond laser light

, 2006
The ability to fabricate strong and extraordinarily stable Bragg gratings in any type of fibre using femtosecond laser light has attracted much interest in the recent past. The induced index change has been attributed to glass densification brought about
Banks, D.P., D. P Banks, M. Ibsen, Canning, J., Mills, J.D., Ibsen, M., A. Canagasabey, Canagasabey, A., J. Canning, J. D. Mills   +9 more
core   +1 more source