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.
Hot carrier dynamics in single-layered doped graphene after the photo-excitation has been studied by ultra-broadband optical-pump/THz-probe spectroscopy (OPTP). We successfully determined the frequency-dependent carrier scattering rate Γ(ω) and Drude weight D(o) of photo-excited graphene from 1 to 8 THz. The Γ(ω) shows a strong frequency dependence and the reduction of the averaged D(o) cannot be...
Carrier dynamics in a single-layered graphene has been studied by ultrabroadband terahertz time domain ellipsometric spectroscopy and time resolved optical pump THz probe technique. We successfully observed the frequency-dependent sheet conductivity of the optically-pumped graphene with and without the photo excitation. Above the optical fluence of 200 µJ/cm2, the negative conductivity indicating...
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.