femtosecond lasers
Yb doped femtosecond lasers and their frequency doubling
... In femtosecond lasers emitting at wavelengths shorter than 1300 nm, the positive dispersive properties exhibited by the optical elements and gain media in the laser cavity can be compensated by a range of ...
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Comparison of DLK incidence after laser in situ keratomileusis associated with two femtosecond lasers: Femto LDV and IntraLase FS60
... two femtosecond lasers, the Femto LDV and the IntraLase FS60, which are different in terms of their laser system specification, for the incidence of ...
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Analysis of corneal endothelial cell density and morphology after laser in situ keratomileusis using two types of femtosecond lasers
... The effectiveness, safety, and stability of using laser-assisted in situ keratomileusis (LASIK) for the correction of refractive errors have been well documented. Early in the development of LASIK, complications related ...
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Comparison of self-reported quality of vision outcomes after myopic LASIK with two femtosecond lasers: a prospective, eye-to-eye study
... 2000s, femtosecond lasers have become increasingly more sophisticated in how they deliver photodisruptive energy to create a LASIK (laser-assisted in situ keratomileusis) ...faster lasers offered the ...
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Use of the Femtosecond Lasers in Ophthalmology
... Moreover, femtosecond laser assisted Deep Anterior Lamellar Keratoplasty (DALK) results to be easier to perform as compared to the manual procedure ...the femtosecond lasers used were ...the ...
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Femtosecond lasers for laser in situ keratomileusis: a systematic review and meta-analysis
... Although in this meta-analysis flap thickness measure- ments and complication rates were classified as secondary outcomes from the surgeons’ point of view, they are in fact the areas of major concern in LASIK. In the ...
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Magnetic field annihilation and reconnection driven by femtosecond lasers in inhomogeneous plasma
... Magnetic reconnection (MR) is a process by which oppositely directed magnetic field lines squeeze each other and reconnect, converting magnetic energy into particles’ kinetic energy [1-3]. It is widely believed to play a ...
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Trace Chemical Analysis and Molecular Dynamics Utilising Ultraintense Femtosecond Lasers
... Utilising femtosecond laser pulses allows the ionisation to proceed very rapidly before significant dissociation can take ...nanosecond lasers, where dissociation usually precedes ionisation o f the ...
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Precise Spatially Selective Photothermolysis Using Modulated Femtosecond Lasers and Real-time Multimodal Microscopy Monitoring
... The objective of this study was to realize precise spatially selective photothermolysis in tissue using real-time multimodal imaging monitoring and modulated femtosecond laser irradiation. A multimodal imaging ...
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Optical Characteristics and Nanoscale Energy Transport in Thin Film Structures Irradiated by Nanosecond to Femtosecond Lasers
... In subpicosecond laser heating systems and high-filed electronic devices, nonequilibrium microscale energy trans- fer between energy carriers and lattice phonons need to be considered. The electron-phonon scattering time ...
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Tunable femtosecond lasers with low pump thresholds
... difficult because of the high pumping rate per unit volume necessary to achieve a population inversionti^l. In order to achieve the highest population inversion the flashlamp pump pulse must be equal to or less than the ...
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Femtosecond lasers in corneal and refractive surgery
... Femtosecond LASIK with the Intralase and the Visumax femtosecond laser platforms were both efficacious and predictable. The majority of patients showed a preference for LASIK with the Visumax 500 kHz laser ...
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The evolution of corneal and refractive surgery with the femtosecond laser
... femtosecond lasers. However, there are some complica- tions specific to femtosecond lasers such as cavitation gas bubbles (known as opaque bubble layer (OBL)) that tend to disappear within ...
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Advances in femtosecond laser technology
... Abstract: Femtosecond laser technology has become widely adopted by ophthalmic ...of femtosecond lasers over traditional manual techniques, and related unique complications in cataract surgery and ...
7
Lasers
... laser. Lasers with Nd:YAG (neodymium-doped yttrium aluminum garnet), Ti:sapphire (Titanium-Sapphire), and other solid gain media are often ...dioxide lasers when the gain medium itself is recycled and ...
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Fibre compatible modelocked lasers at 1 5μm
... fibre lasers (see chapter 8) has shown that highly efficient laser oscillation can be achieved for a number of different active ...fibre lasers will be greatly improved on incorporation of semiconductor ...
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Multicore rare earth doped fibres; application to amplifiers, filters and lasers
... 2.2 In-line polarisation insensitive phase conjugators Dual polarisation DFB lasers have been used for the first time as in-line pumps for polarisation insensitive optical phase conjugators. A schematic of the ...
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Characterisation and performance of a Terfenol-D coated femtosecond laser inscribed optical fibre Bragg sensor with a laser ablated microslot for the detection of static magnetic fields
... a femtosecond laser (a High Q femtoREGEN laser operating at 1035nm, with pulse duration of 300fs, 1kHz pulse repetition rate with the pulse energy being controlled by a variable ...of femtosecond inscribed ...
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Ultrafast high repetition rate waveguide lasers
... Passive mode-locking of waveguide laser systems has been demonstrated with semiconductor saturable absorbing mirrors (SESAMs), carbon nanotubes (CNTs), and graphene, [64-66], and as soliton fiber ring lasers with ...
10
Microchip lasers
... The light used to probe the crystal was typically from a HeNe laser, which has a coherence length of approximately 30cm, much longer than the 0.2-1mm coherence length required to produce an interferogram. This long ...
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