Superradiance in resonant electron transitions of molecular nitrogen ions in air and atomic strontium ions at optical pumping of a FS laser with a wavelength of 800 nm

2019 ◽  
Author(s):  
Gennady G. Matvienko ◽  
Vladimir E. Prokopev ◽  
Viktor K. Oshlakov ◽  
Anastasiya N. Iglakova
Keyword(s):  
Optical Pumping ◽  
Molecular Nitrogen ◽  
Electron Transitions ◽  
Resonant Electron ◽  
Fs Laser ◽  
Nitrogen Ions ◽  
Strontium Ions

Ion Bombardment Effects on GaAs Using 100eV Nitrogen Ions

1988 ◽  
Vol 128 ◽  
Author(s):  
W. M. Lau
Keyword(s):  
Photoelectron Spectroscopy ◽  
Molecular Nitrogen ◽  
Polar Angle ◽  
Ion Bombardment ◽  
Molecular Ions ◽  
Near Surface ◽  
Nitrogen Ions ◽  
Gallium Nitrides ◽  
Nitrogen Ion ◽  
P Type

ABSTRACTThe ion bombardment effects of low energy molecular nitrogen ions (100eV) on GaAs have been investigated using in-situ polar angle dependent X-ray photoelectron spectroscopy. It was found that arsenic and gallium nitrides were formed as a result of the nitrogen ion bombardment. The ion bombardment also caused a depletion of arsenic in the near surface region. For example, with a dose of 6×1015 cm-2 of nitrogen molecular ions at 100eV, the surface structure can be described approximately as 1.5nm of Ga0.67A0.33N on GaAs. The ion bombardment moves the Fermi levels of both n-type and p-type GaAs to mid-gap. Heating the ion bombarded samples in a vacuum chamber to 500°C desorbs all arsenic nitrides but most of the gallium nitrides remain on the surface. The Fermi levels of both n-type and p-type are then stablized at about 0.4eV from the valence band maximum. A surface type-inversion of the n-type substrate is therefore induced by the nitrogen-ionbombardment/annealing treatment.

Temporal behavior of air lasing by molecular nitrogen ions

2020 ◽  
Vol 456 ◽  
pp. 124573 ◽  
Author(s):  
N.G. Ivanov ◽  
I.A. Zyatikov ◽  
V.F. Losev ◽  
V.E. Prokop’ev
Keyword(s):  
Molecular Nitrogen ◽  
Temporal Behavior ◽  
Nitrogen Ions

Active medium parameters of molecular nitrogen ions in air laser plasma

2021 ◽  
Author(s):  
Ilya Zyatikov ◽  
Valery Losev ◽  
Vladimir Prokopev
Keyword(s):  
Active Medium ◽  
Laser Plasma ◽  
Molecular Nitrogen ◽  
Nitrogen Ions

Superradiance pulse duration by molecular nitrogen ions in air laser plasma

2021 ◽  
pp. 161-165
Author(s):  
I.A. Zyatikov ◽  
◽  
V.F. Losev ◽  
V.E. Prokopev ◽  
D.M. Lubenko ◽  
...  
Keyword(s):  
Active Medium ◽  
Pulse Duration ◽  
Laser Plasma ◽  
Molecular Nitrogen ◽  
Radiation Pulse ◽  
Femtosecond Radiation ◽  
Superradiance Pulse ◽  
Nitrogen Ions

The results of study of superradiance pulse duration by molecular nitrogen ions in air for various focusing conditions of femtosecond radiation pulse with a wavelength of 950 nm are presented. Parameters of active medium are analyzed and mechanism for the formation of picosecond superradiance pulse at femtosecond seed duration is proposed.

Reflection of molecular nitrogen ions from polycrystal targets

1984 ◽  
Vol 84 (3-4) ◽  
pp. 257-261 ◽  
Author(s):  
L. L. Balashova ◽  
Sh. N. Garin ◽  
V. A. Molchanov
Keyword(s):  
Molecular Nitrogen ◽  
Nitrogen Ions

Dramatic Spectral Broadening of Ultrafast Laser Pulses in Molecular Nitrogen Ions*

2019 ◽  
Vol 36 (10) ◽  
pp. 104204
Author(s):  
Jin-Ming Chen ◽  
Jin-Ping Yao ◽  
Zhao-Xiang Liu ◽  
Bo Xu ◽  
Fang-Bo Zhang ◽  
...  
Keyword(s):  
Molecular Nitrogen ◽  
Laser Pulses ◽  
Ultrafast Laser ◽  
Spectral Broadening ◽  
Ultrafast Laser Pulses ◽  
Nitrogen Ions

scholarly journals From megahertz to terahertz qubits encoded in molecular ions: theoretical analysis of dipole-forbidden spectroscopic transitions in N2+

2020 ◽  
Vol 22 (40) ◽  
pp. 23083-23098
Author(s):  
Kaveh Najafian ◽  
Ziv Meir ◽  
Stefan Willitsch
Keyword(s):  
Magnetic Fields ◽  
Theoretical Analysis ◽  
Degrees Of Freedom ◽  
Theoretical Study ◽  
Molecular Nitrogen ◽  
Molecular Ions ◽  
Nitrogen Ions

Theoretical study of the implementation of qubits and clock transitions in the spin, rotational, and vibrational degrees of freedom of molecular nitrogen ions including the effect of magnetic fields.

scholarly journals PRECISION SPECTROSCOPY ON SINGLE COLD TRAPPED MOLECULAR NITROGEN IONS

2016 ◽  
Author(s):  
Gregor Hegi ◽  
Stefan Willitsch ◽  
Ilia Sergachev ◽  
Matthias Germann ◽  
Kaveh Najafian
Keyword(s):  
Molecular Nitrogen ◽  
Precision Spectroscopy ◽  
Nitrogen Ions

scholarly journals Intense, directional UV emission from molecular nitrogen ions in an adaptively controlled femtosecond filament

2013 ◽  
Vol 41 ◽  
pp. 10004 ◽  
Author(s):  
G. Andriukaitis ◽  
J. Möhring ◽  
D. Kartashov ◽  
A. Pugžlys ◽  
A. Zheltikov ◽  
...  
Keyword(s):  
Molecular Nitrogen ◽  
Uv Emission ◽  
Nitrogen Ions

scholarly journals Polar cap optical observations of topside (>900 km) molecular nitrogen ions

1999 ◽  
Vol 26 (7) ◽  
pp. 1003-1006 ◽  
Author(s):  
G. J. Romick ◽  
J-H. Yee ◽  
M. F. Morgan ◽  
D. Morrison ◽  
L. J. Paxton ◽  
...  
Keyword(s):  
Molecular Nitrogen ◽  
Optical Observations ◽  
Polar Cap ◽  
Nitrogen Ions
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