The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In ultra-intense ultrafast laser-matter interaction, the interplay of laser-induced oscillating space-charge fields with laser E- and B-fields can strongly affect whether the interaction is relativistic or not; with increasing intensities, relativistic character may saturate.
This paper deals with the microstructure of the generated crystals in borate glass by femtosecond laser irradiation, Raman spectroscopy was used to study the distribution of the two phases of barium metaborate crystals produced.
Waveguides were fabricated in fused silica using kHz and MHz repetition rate femtosecond lasers. Raman and fluorescence microscopy showed increases in 3-membered rings for both cases and fewer NBOHC-defects when writing with the MHz laser.
Structural modification in gratings inscribed point-by-point by a femtosecond laser is investigated using quantitative phase microscopy. The gratings present a central region with a depressed refractive index surrounded by an outer corona with increased index.
A femtosecond fiber laser with 1.5-MHz repetition rate was used to write directional couplers inside bulk glasses for the first time in the 1550-nm band. Waveguide losses and coupling strengths are reported for borosilicate glass.
Parabolic pulses from a similariton amplifier at 1550 nm are compressed using optimized linear compression in photonic bandgap fiber and soliton effect compression in dispersion-flattened highly nonlinear fiber. Transform-limited 20 fs pulses are obtained.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.