scholarly journals High-energy pulse synthesis with sub-cycle waveform control for strong-field physics

2011 ◽  
Vol 5 (8) ◽  
pp. 475-479 ◽  
Author(s):  
Shu-Wei Huang ◽  
Giovanni Cirmi ◽  
Jeffrey Moses ◽  
Kyung-Han Hong ◽  
Siddharth Bhardwaj ◽  
...  
Keyword(s):  
Strong Field ◽  
High Energy ◽  
Waveform Control ◽  
Strong Field Physics ◽  
Energy Pulse

scholarly journals Strong-field physics using lasers and relativistic heavy ions at the high-energy storage ring hesr at fair

2014 ◽  
Vol 488 (14) ◽  
pp. 142003
Author(s):  
T Kuehl ◽  
V Bagnoud ◽  
T Stoehlker ◽  
Y Litvinov ◽  
D F A Winters ◽  
...  
Keyword(s):  
Energy Storage ◽  
Storage Ring ◽  
Heavy Ions ◽  
Strong Field ◽  
High Energy ◽  
Relativistic Heavy Ions ◽  
Strong Field Physics ◽  
High Energy Storage

scholarly journals Mid-Infrared Few-Cycle Pulse Generation and Amplification

Photonics ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 290
Author(s):  
Kan Tian ◽  
Linzhen He ◽  
Xuemei Yang ◽  
Houkun Liang
Keyword(s):  
Strong Field ◽  
Average Power ◽  
High Energy ◽  
Pulse Generation ◽  
Single Cycle ◽  
Mid Infrared ◽  
Optical Parametric ◽  
Isolated Attosecond Pulse ◽  
Strong Field Physics ◽  
Cycle Pulse

In the past decade, mid-infrared (MIR) few-cycle lasers have attracted remarkable research efforts for their applications in strong-field physics, MIR spectroscopy, and bio-medical research. Here we present a review of MIR few-cycle pulse generation and amplification in the wavelength range spanning from 2 to ~20 μm. In the first section, a brief introduction on the importance of MIR ultrafast lasers and the corresponding methods of MIR few-cycle pulse generation is provided. In the second section, different nonlinear crystals including emerging non-oxide crystals, such as CdSiP2, ZnGeP2, GaSe, LiGaS2, and BaGa4Se7, as well as new periodically poled crystals such as OP-GaAs and OP-GaP are reviewed. Subsequently, in the third section, the various techniques for MIR few-cycle pulse generation and amplification including optical parametric amplification, optical parametric chirped-pulse amplification, and intra-pulse difference-frequency generation with all sorts of designs, pumped by miscellaneous lasers, and with various MIR output specifications in terms of pulse energy, average power, and pulse width are reviewed. In addition, high-energy MIR single-cycle pulses are ideal tools for isolated attosecond pulse generation, electron dynamic investigation, and tunneling ionization harness. Thus, in the fourth section, examples of state-of-the-art work in the field of MIR single-cycle pulse generation are reviewed and discussed. In the last section, prospects for MIR few-cycle lasers in strong-field physics, high-fidelity molecule detection, and cold tissue ablation applications are provided.

Strong-field physics: general discussion

2021 ◽  
Author(s):  
Kyle Acheson ◽  
Felix Allum ◽  
Rituparna Das ◽  
Gopal Dixit ◽  
Huan Doan ◽  
...  
Keyword(s):  
Strong Field ◽  
Strong Field Physics

OBSERVATIONAL CONSTRAINTS ON STRONG GRAVITY

2011 ◽  
Vol 20 (14) ◽  
pp. 2755-2760
Author(s):  
CHRIS DONE
Keyword(s):  
Black Hole ◽  
Event Horizon ◽  
Strong Field ◽  
Field Tests ◽  
High Energy ◽  
Observational Constraints ◽  
Tests Of General Relativity ◽  
Strong Gravity ◽  
Accretion Flows ◽  
Spacetime Curvature

Accretion onto a black hole transforms the darkest objects in the universe to the brightest. The high energy radiation emitted from the accretion flow before it disappears forever below the event horizon lights up the regions of strong spacetime curvature close to the black hole, enabling strong field tests of General Relativity. I review the observational constraints on strong gravity from such accretion flows, and show how the data strongly support the existence of such fundamental General Relativistic features of a last stable orbit and the event horizon. However, these successes also imply that gravity does not differ significantly from Einstein's predictions above the event horizon, so any new theory of quantum gravity will be very difficult to test.

Nanooptics and electrons: From strong-field physics at needle tips to dielectric laser acceleration

2014 ◽  
Author(s):  
Michael Kruger ◽  
Sebastian Thomas ◽  
John Breuer ◽  
Michael Forster ◽  
Dominik Ehberger ◽  
...  
Keyword(s):  
Strong Field ◽  
Strong Field Physics ◽  
Laser Acceleration

scholarly journals Focusing of intense laser pulse by a hollow cone

2010 ◽  
Vol 28 (2) ◽  
pp. 293-298 ◽  
Author(s):  
Wei Yu ◽  
Lihua Cao ◽  
M.Y. Yu ◽  
A.L. Lei ◽  
Z.M. Sheng ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Strong Field ◽  
High Energy ◽  
Plasma Boundary ◽  
High Energy Density ◽  
Intense Laser ◽  
Intense Laser Pulse ◽  
Hollow Cone ◽  
Conical Channel ◽  
Boundary Plasma

AbstractIt is shown that an intense laser pulse can be focused by a conical channel. This anomalous light focusing can be attributed to a hitherto ignored effect in nonlinear optics, namely that the boundary response depends on the light intensity: the inner cone surface is ionized and the laser pulse is in turn modified by the resulting boundary plasma. The interaction creates a new self-consistently evolving light-plasma boundary, which greatly reduces reflection and enhances forward propagation of the light pulse. The hollow cone can thus be used for attaining extremely high light intensities for applications in strong-field and high energy-density physics and other areas.

scholarly journals Adaptive pulse compression for transform-limited 15-fs high-energy pulse generation

2000 ◽  
Vol 25 (8) ◽  
pp. 587 ◽  
Author(s):  
E. Zeek ◽  
R. Bartels ◽  
M. M. Murnane ◽  
H. C. Kapteyn ◽  
S. Backus ◽  
...  
Keyword(s):  
Pulse Compression ◽  
High Energy ◽  
Pulse Generation ◽  
Energy Pulse

scholarly journals Photoacoustic Energy Sensor for Nanosecond Optical Pulse Measurement

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3879 ◽  
Author(s):  
Pil Sang ◽  
Junseok Heo ◽  
Hui Park ◽  
Hyoung Baac
Keyword(s):  
High Energy ◽  
Hybrid Structure ◽  
Ultrasonic Pulse ◽  
Acoustic Frequency ◽  
Pulse Measurement ◽  
Optical Energy ◽  
Energy Meter ◽  
Energy Sensor ◽  
Energy Pulse ◽  
Spectral Ranges

We demonstrate a photoacoustic sensor capable of measuring high-energy nanosecond optical pulses in terms of temporal width and energy fluence per pulse. This was achieved by using a hybrid combination of a carbon nanotube-polydimethylsiloxane (CNT-PDMS)-based photoacoustic transmitter (i.e., light-to-sound converter) and a piezoelectric receiver (i.e., sound detector). In this photoacoustic energy sensor (PES), input pulsed optical energy is heavily absorbed by the CNT-PDMS composite film and then efficiently converted into an ultrasonic output. The output ultrasonic pulse is then measured and analyzed to retrieve the input optical characteristics. We quantitatively compared the PES performance with that of a commercial thermal energy meter. Due to the efficient energy transduction and sensing mechanism of the hybrid structure, the minimum-measurable pulsed optical energy was significantly lowered, ~157 nJ/cm2, corresponding to 1/760 of the reference pyroelectric detector. Moreover, despite the limited acoustic frequency bandwidth of the piezoelectric receiver, laser pulse widths over a range of 6–130 ns could be measured with a linear relationship to the ultrasound pulse width of 22–153 ns. As CNT has a wide electromagnetic absorption spectrum, the proposed pulsed sensor system can be extensively applied to high-energy pulse measurement over visible through terahertz spectral ranges.

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