femtosecond laser pulses
Contrasting levels of absorption of intense femtosecond laser pulses by solids
... ultraintense, femtosecond laser pulses by a solid unleashes relativistic electrons, thereby creating a regime of relativistic ...and laser pulse ...of laser absorption carried out under ...
7
Study of the nonlinear propagation of femtosecond laser pulses
... The need to image fast phenomena has lead to many novel technologies and ever-faster imaging systems. Film-based cameras capture events in microseconds by using mechanical motion to direct the light to different parts of ...
129
Drilling of sub- 100 μm hourglass -shaped holes in Diamond with femtosecond laser pulses
... homemade femtosecond (fs) Yb:KGW laser. An fs laser source was used emitting pulse duration of 230 fs at 1030 nm wavelength, whereas the spot size amounted to ...
6
Synthesis of 3D nanostructured metal alloy of immiscible materials induced by megahertz repetition femtosecond laser pulses
... of laser ablation of microparticles for generating a 3D nanostructured metal- lic alloy has been successfully applied for the generation of 3D nanostructure materials through laser irradiation of a mixture ...
8
Selective Excitation of Terahertz Magnetic and Electric Dipoles in Er3+ Ions by Femtosecond Laser Pulses in ErFeO3
... Fig. 3. (Color online). The geometry of the optical pump/THz emission experiment. The direction of the laser pulse propagation of and the THz emission; the measured polarization of the THz electric field are shown ...
16
Review of Ultrafast Demagnetization After Femtosecond Laser Pulses: A Complex Interaction of Light with Quantum Matter
... a femtosecond laser pulse, either with THz or with optical frequencies, then there is at least a partial demagnetization within a few hundred femtoseconds, followed by a remagnetization to the original ...
7
Electrostrictive Mechanism of Nanostructure Formation at Solid Surfaces Irradiated by Femtosecond Laser Pulses
... It should be noted that the timescale of the femtosec- ond laser pulses and SPPs (fs) is significantly less than the expected timescale of material movement (ps) [18] in the processes described above. ...
6
Porpagation of Femtosecond Laser Pulses in Litharge Index Sf57: Time-Frequency
... FROG involves measuring the spectrum of the signal pulse as a function of the delay between two input pulses. The resulting trace of intensity versus frequency and delay is related to the pulse’s spectrogram, a ...
17
Patterned Nanofoam Fabrication from a Variety of Materials via Femtosecond Laser Pulses
... as laser ablation [4] [5] [6]. Laser-based nanofoam fabrication offers the potential for control over the precise location at which the nanofoam is ...second pulses onto the surface of a material ...
11
Holzwarth, Ronald (2001): Measuring the Frequency of Light using Femtosecond Laser Pulses. Dissertation, LMU München: Fakultät für Physik
... fs pulses at 75 MHz repetition rate from a Mira 900 system (Coherent ...fs pulses at 625 and 750 MHz repetition rate utilize for all other spectra shown in this ...Ti:sapphire laser (KMLabs) and a ...
113
Characterization of nanoparticle mediated laser transfection by femtosecond laser pulses for applications in molecular medicine
... before laser treat- ...After laser treatment, the cells were incubated for 30 min followed by several washing steps until the back- ground fluorescence from the permeabilization indicator (10 kDa FITC ...
15
Nonlinear Optical Properties and Optical Limiting Measurements of {(1Z) [4 (Dimethylamino)Phenyl]Methylene} 4 Nitrobenzocarboxy Hydrazone Monohydrate under CW Laser Regime
... exhibit laser induced refractive index changes such as fulle- renes, liquid crystals, natural substances such as Henna, Chinese tea and Curcumin and organic materials such as Porphyrin, Phthalocyanine and their ...
8
Plasma effect on propagation of filamented femtosecond laser pulse in fused silica
... the femtosecond pulse has been repeatedly simulated for fused silica [9, 10] in a wide range of beam powers under assumption of axial ...of femtosecond laser pulses caused by nonlinear losses ...
9
Fundamental Studies of Femtosecond Laser Interactions with Solids and Their Applications to Laser Ablation Inductively Coupled Plasma Mass Spectrometry for Environmental Analysis
... nanosecond laser (ns) systems (Nd:YAG and excimer lasers) [31-35] ...the laser-produced aerosols. While Nd:YAG laser systems are less expensive and easier to maintain, the thermal characteristics of ...
196
The dynamics of compact laser pulses
... ) laser pulse in vacuo as a spatially compact classical electromagnetic con fi guration with de fi nite energy and temporal width t 0 , one expects that when t 0 its dynamical evolution, in both vacuo and ...
12
Femtosecond laser ablation of metals
... computationally expensive compared with M D simulations. Figure 2.4 is the calcu lated density-phase diagram fo r an aluminium target undergoing femtosecond ablation by a 800 nm, 100 fs laser pulse with a ...
165
Femtosecond laser cataract surgery
... The diameter of the anterior capsulotomy can be var- ied between 4.5 and 6 mm with the LenSx system. For lens fragmentation, a hybrid pattern may be used. This involves liquefaction of the central 3.0 mm core and ...
8
Advances in femtosecond laser technology
... FS laser treatment (INTRACOR) using FS laser is another option to correct presbyopia by selectively changing the topographic and refractive characteristics of the central portion of the ...
7
The dynamics of compact laser pulses
... non-time-harmonic) laser pulse in vacuo as a spatially compact classical electromagnetic configuration with definite energy E and temporal width t 0 , one expects that when E t 0 ...quantized pulses or free ...
15
Comparison of efficacy, safety, and predictability of laser in situ keratomileusis using two laser suites
... kHz femtosecond systems showed similar predictability 12 months ...FS200 femtosecond group had a better UDVA faster, which, according to the authors, is suggestive of a faster visual ...
8