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 this work, we report theoretical and experimental efforts aimed at understanding the efficiency of using the method of fs modifications for the fabrication of highly non-linear photonic structures in bulk chalcogenide glasses. Our theoretical approach is based on a thermal model that predicts structural changes inside a glass volume that has been heated above the glass transition temperature Tg...
Interest in chalcogenide glasses for photonic applications has been growing vigorously, driven by the wide wavelength range of optical transparency, high linear refractive indices, large optical non-linearity and the possibility for hosting active rare earth dopants. In this paper some emerging technologies for the fabrication of planar chalcogenide glass waveguides and photonic devices are discussed...
Chalcogenide glasses are novel highly non-linear materials for photonics. Modification of optical glasses by high-intensity femtosecond pulses is a novel fast developing technology based on non-linear effects. In this paper, the advantages of using the method of femtosecond modifications for the fabrication of highly non-linear 3D photonic structures in bulk chalcogenide glasses are overviewed. Design...
In this work, we report both theoretical and experimental efforts aimed at understanding the efficiency of using the method of fs modifications for the fabrication of highly non-linear photonic structures in bulk chalcogenide glasses. The research embraces: 1. numerical modelling of the process of glass sample illumination by a fs pulse, energy deposition and subsequent glass cooling; 2. melting of...
Using a quantitatively calibrated imaging system and specially fabricated tapered lasers with windowed n-contacts, the authors image the spontaneous emission distribution inside two different laser cavities as a function of injection current. In the first device, an array of narrow-angle index-guided tapered lasers, significant thermal and electrical coupling between the emitters was observed. In...
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.