High-order harmonic generation yielding tunable extreme-ultraviolet radiation of high spectral purity.
نویسندگان
چکیده
Production of extreme-ultraviolet radiation by high-order harmonic generation is demonstrated to yield unprecedented spectral purity of lambda/Delta lambda=2.5 x 10(5) at wavelengths covering the entire range 40-100 nm. Tunability and sub-cm(-1) bandwidth of the harmonics are demonstrated in recordings of the He (1s4p) and Ar (3p(5)3d') resonance lines at 52.2 and 86.6 nm. Frequency shift of the harmonics due to chirp-induced phenomena are investigated and found to be small, resulting in a frequency accuracy of about 5 x 10(-7) in the domain of extreme-ultraviolet radiation.
منابع مشابه
Carrier-envelope phase control of a 10 Hz, 25 TW laser for high-flux extreme ultraviolet quasi-continuum generation
Articles you may be interested in Generation of high-energy tunable multicolored femtosecond sidebands directly after a Ti:sapphire femtosecond laser Appl. A high-flux high-order harmonic source Rev. Generation of high-flux attosecond extreme ultraviolet continuum with a 10 TW laser Appl.
متن کاملGeneration of vacuum ultraviolet radiation by sum frequency mixing of a femtosecond and a nanosecond laser
Ž . The interaction of high-intensity short pulse fs lasers with atomic or molecular vapors permits the conversion of visible light to intense coherent radiation in the vacuum ultraviolet spectral region. We demonstrate sum frequency mixing of a Ž . Ž . high-intensity short pulse fs laser with a conventional long pulse ns laser to extend the accessible wavelength range of harmonic generation. T...
متن کاملHigh-order harmonics measured by the photon statistics of the infrared driving-field exiting the atomic medium
High-order harmonics in the extreme-ultraviolet spectral range, resulting from the strong-field laser-atom interaction, have been used in a broad range of fascinating applications in all states of matter. In the majority of these studies the harmonic generation process is described using semi-classical theories which treat the electromagnetic field of the driving laser pulse classically without...
متن کاملTunable enhancement of high harmonic emission from laser solid interactions.
Coherent wake emission is a unique source of extreme ultraviolet radiation and has been recently shown to provide the basis for intense attosecond light. Here we present a novel scheme, supported by particle-in-cell simulations, demonstrating that enhancement and spectral control of the coherent wake emission signal can be achieved by modifying the interaction plasma density ramp. Significant t...
متن کاملAn extreme ultraviolet interferometer using high order harmonic generation
We present a new interferometer technique based on the interference of high-order harmonic generation radiation from translatable successive gas jets. The phase shifts in the apparatus are shown to originate from the Gouy phase shift of the driving laser. The technique can be used to deliver time delays between light pulses and we demonstrate the unprecedented capability of delivering pulses of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review letters
دوره 91 16 شماره
صفحات -
تاریخ انتشار 2003