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.
This paper shows how such a many-particle approach can be used to compute the laser gain, absorption, photoluminescence as well as the radiative and Auger recombination processes. The predictive power of this modelling is demonstrated by detailed comparisons to quantitative experiments. In particular, so-called VECSEL (vertical external cavity surface emitting laser) systems are analyzed. It is shown...
This paper summarizes a consistent microscopic approach that allows for predictive calculations of laser gain/absorption, photoluminescence, and the intrinsic laser loss processes. The theory is first evaluated for an (AlGaIn)As quantum well system used in a vertical-external-cavity surface-emitting laser structure. Good agreement with experimental results is demonstrated. In a second application,...
Summary form only given. Exciton wavefunctions are sensitive to the confinement by sample surfaces, which makes the optical response of a slab very different from that of the infinitely extended medium. This complicated coupling between microscopic exciton polarization and macroscopic optical field has led to a variety of theoretical approaches over 40 years, which either start from a macroscopic...
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.