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.
We report CEO frequency measurements of a 10 GHz harmonically modelocked, etalon stabilized comb source using a multi-heterodyne beating technique. Also, preliminary results from an attempt at f-2f self referencing measurement are presented.
We report a novel scheme to improve the effective transmission of a standard interference filter, and demonstrate 96% passband transmission. Such high efficiency is critical for quantum information applications, e.g., high-efficiency single-photon generation utilizing parametric down-conversion.
Using a generalized version of double optical gating, we produced single isolated attosecond pulses with 2 mJ, 25 fs driving lasers. Through attosecond streaking, we characterized isolated 160 attosecond pulses with 170 pJ pulse energy.
Simultaneous measurements of water and CO2 isotopologue ratios were performed using laser absorption spectroscopy in combination with Kalman filtering at 2.73 μm. The isotopic compositions of eH2O and eCO2 in breath gas were analyzed.
The OMEGA EP intensity contrast has been measured to be approximately 6 decades for kilojoule 10-ps pulses. The OPCPA front end is the primary source of the measured incoherent pedestal.
We present an extended version of the Self-Referenced Spectral Interferometry technique allowing for both spectral phase and intensity retrieval from a single-shot interferogram. Feedback to an AOPDF was performed to demonstrate the measurement accuracy.
Dual, coherent frequency combs are used to measure the spectrum of an incoherent, quasi-thermal source through Fourier spectroscopy. The source spectrum is acquired over 1 THz bandwidth with an absolute frequency accuracy set by the combs. Work of the U.S. government, not subject to copyright.
We demonstrate arbitrary shaped UV picosecond pulses with energies up to 50 J at 272 nm. Temporal shaping is performed by a UV AOPDF allowing direct amplitude and spectral phase control.
An optical frequency stability measurement setup based on a Fabry-Perot Etalon reference is presented that results in measurements with ~1.4 kHz optical frequency resolution at update rates of 90 Hz.
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.