Tailoring extreme-ultraviolet light

2017 ◽  
Vol 11 (4) ◽  
pp. 209-210
Author(s):  
Taro Sekikawa ◽  
Kenichi L. Ishikawa
Keyword(s):  
Ultraviolet Light ◽  
Extreme Ultraviolet ◽  
Extreme Ultraviolet Light

Lasing of extreme ultraviolet light with nitrogen plasma in a recombining phase—Roles of doubly excited states

2012 ◽  
Vol 19 (6) ◽  
pp. 063302 ◽  
Author(s):  
Takuya Ozawa ◽  
Shuhei Yamamura ◽  
Nao Tatsumura ◽  
Kazuhiko Horioka ◽  
Tohru Kawamura
Keyword(s):  
Excited States ◽  
Ultraviolet Light ◽  
Extreme Ultraviolet ◽  
Nitrogen Plasma ◽  
Doubly Excited States ◽  
Doubly Excited ◽  
Extreme Ultraviolet Light

Enhancing the conversion efficiency of extreme ultraviolet light sources using a 2 µm-wavelength laser

2021 ◽  
Author(s):  
Yun Yuan ◽  
Yan-Yun Ma ◽  
Wenpeng Wang ◽  
Shijia Chen ◽  
Ye Cui ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Emission Spectrum ◽  
Ultraviolet Light ◽  
Conversion Efficiency ◽  
Extreme Ultraviolet ◽  
Light Sources ◽  
Band Emission ◽  
Percentage Points ◽  
Hydrodynamic Code ◽  
Extreme Ultraviolet Light

Abstract In this study, we use the FLASH radiation hydrodynamic code and the FLYCHK atomic code to investigate the energy conversion and spectra associated with laser–Sn target interactions with 1 µm and 2 µm wavelength lasers. We found that the conversion efficiency (CE) reached as much as 3.38% with the 2 µm laser, which is 1.48 percentage points higher than the 1 µm laser (CE = 1.9%). In addition, we analyzed the contribution of dominant ionization states to the emission spectrum for both lasers. We observed that the growths of the out-of-band emission eventually led to a broadening of the spectrum, resulting in a reduction of SP for the 1 µm laser. By contrast, the emission main peaks were all centered near 13.5nm for the 2 µm laser, which is beneficial for efficient emission of light with a 13.5 nm wavelength (relevant for nanolithographic applications).

scholarly journals Observation of extreme ultraviolet light emission from an expanding plasma jet with multiply charged argon or xenon ions

2018 ◽  
Vol 113 (15) ◽  
pp. 153502 ◽  
Author(s):  
A. G. Shalashov ◽  
A. V. Vodopyanov ◽  
I. S. Abramov ◽  
A. V. Sidorov ◽  
E. D. Gospodchikov ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Light Emission ◽  
Extreme Ultraviolet ◽  
Plasma Jet ◽  
Multiply Charged ◽  
Extreme Ultraviolet Light

scholarly journals Extreme ultraviolet light from a tin plasma driven by a 2-\si{\micro\meter}-wavelength laser

2020 ◽  
Author(s):  
Oscar Versolato ◽  
Lars Behnke ◽  
Ruben Schupp ◽  
Zoi Bouza ◽  
MUHARREM BAYRAKTAR ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Extreme Ultraviolet ◽  
Tin Plasma ◽  
Extreme Ultraviolet Light

scholarly journals Electron quantum path control in high harmonic generation via chirp variation of strong laser pulses

2021 ◽  
Author(s):  
Stylianos Petrakis ◽  
Makis Bakarezos ◽  
Michael Tatarakis ◽  
Emmanouil Benis ◽  
Nektarios Papadogiannis
Keyword(s):  
Laser Pulse ◽  
Ultraviolet Light ◽  
Harmonic Generation ◽  
Extreme Ultraviolet ◽  
High Harmonic ◽  
High Harmonic Generation ◽  
Ultrafast Laser ◽  
Temporal Window ◽  
Electron Quantum ◽  
Extreme Ultraviolet Light

Abstract The quantum phases of the electron paths driven by an ultrafast laser in high harmonic generation in an atomic gas depends linearly on the instantaneous cycle-averaged laser intensity. Using high laser intensities, a complete single ionisation of the atomic gas may occur before the laser pulse peak. Therefore, high harmonic generation could be localized only in a temporal window at the leading edge of laser pulse envelope. Varying the laser frequency chirp of an intense ultrafast laser pulse, the centre, and the width of the temporal window, that the high harmonic generation phenomenon occurs, could be controlled with high accuracy. This way, both the duration and the phase of the electron trajectories, that generate efficiently high harmonics, is fully controlled. An accurate and robust method of spectral control and selection of the high harmonic extreme ultraviolet light from distinct quantum paths is experimentally demonstrated. Furthermore, a phenomenological numerical model enlightens the physical processes that take place. This novel approach of the electron quantum path selection via laser chirp is a simple and versatile way of controlling the time-spectral characteristics of the coherent extreme ultraviolet light with future applications in the fields of attosecond pulses and soft x-ray nano-imaging.

Fractional Talbot lithography with extreme ultraviolet light

2014 ◽  
Vol 39 (24) ◽  
pp. 6969 ◽  
Author(s):  
Hyun-su Kim ◽  
Wei Li ◽  
Serhiy Danylyuk ◽  
William S. Brocklesby ◽  
Mario C. Marconi ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Extreme Ultraviolet ◽  
Extreme Ultraviolet Light
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