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.
Broadband thermal infrared heterodyne spectro-radiometry performed over a frequency range of more than 100 cm-1 at lambda=8.4 mum using an external cavity quantum cascade laser as a tunable local oscillator will be reported.
We demonstrate simultaneous detection of multiple airborne chemicals at low-ppb concentrations using a sensor based on a rapid tuning of an external cavity quantum cascade laser from 7.87-8.70 mum.
We present a fast wavelength tuning of a Littrow-type EC-QCL. This configuration allows for coarse broadband and high resolution mode-hop-free wavelength scanning at >1 kHz rates. Example EC-QCL measurements of mid-infrared ammonia spectra are demonstrated.
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.