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.
Waveguide inscription by femtosecond laser into a glass has a complicated dependence on writing conditions, laser parameters, and glass composition. In this presentation, we will firstly focus on a new method based on a helical translation of a chalcogenide glass sample through the focal point and parallel to the laser beam. This original technique based on an inscription characterized by a negative...
It is well known that when intense femtosecond pulse propagates in a transparent medium, self-focusing effect can occur due to the nonlinear refractive index (NRI) of the medium. In case of positive NRI the beam is focused in the medium and can even collapse if a critical power is reached. Due to the highly concentrated intensities in a small volume, a plasma can then be generated by multiphoton excitation...
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.