scholarly journals Overview of laser damage performance of the third-harmonic frequency conversion crystals on the National Ignition Facility

2018 ◽  
Author(s):  
Raluca A. Negres ◽  
Zhi M. Liao ◽  
John J. Adams ◽  
David A. Cross ◽  
Mary A. Norton ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Laser Damage ◽  
National Ignition Facility ◽  
Harmonic Frequency ◽  
Third Harmonic ◽  
The Third

scholarly journals Effect of bandwidth on beam smoothing and frequency conversion at the third harmonic of the Nova laser

1993 ◽  
Author(s):  
Deanna M. Pennington ◽  
Mark A. Henesian ◽  
Sham N. Dixit ◽  
Howard T. Powell ◽  
Calvin E. Thompson ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Third Harmonic ◽  
The Third

scholarly journals Harmonic Suppressed Slot Antennas Using Rectangular/Circular Defected Ground Structures

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Mohammad Saeid Ghaffarian ◽  
Gholamreza Moradi ◽  
Reza Zaker
Keyword(s):  
Ground Plane ◽  
Reflection Coefficients ◽  
Harmonic Suppression ◽  
Radiation Patterns ◽  
Harmonic Frequency ◽  
Slot Antennas ◽  
Third Harmonic ◽  
The Third ◽  
Defected Ground Structures ◽  
Ground Structures

Two wide rectangle-shaped microstrip-fed 2.6-GHz slot antennas using defected ground structures (DGSs) with a low design complexity are proposed to achieve wideband harmonic suppression. To accomplish this, two rectangular DGSs (RDGSs) in the first antenna and two circular DGSs (CDGSs) in the second one with various dimensions are etched into the ground plane, which could have a wideband-stop characteristic. Simulated and measured reflection coefficients indicate that the two proposed structures effectively suppress the second and third harmonics up to 23 dB between 3.5 and 10.5 GHz with a maximum ripple of 2.4 dB. In addition, the radiation patterns and peak gains of the antennas can be suppressed at least 17 dB and 7.1 dBi, respectively, at the third harmonic frequency of 7.86 GHz.

scholarly journals Modeling of large-aperture third-harmonic frequency conversion of high-power Nd:glass laser systems

1991 ◽  
Author(s):  
Mark A. Henesian ◽  
Paul J. Wegner ◽  
David R. Speck ◽  
Camille M. Bibeau ◽  
Robert B. Ehrlich ◽  
...  
Keyword(s):  
High Power ◽  
Frequency Conversion ◽  
Harmonic Frequency ◽  
Third Harmonic ◽  
Large Aperture ◽  
Laser Systems ◽  
Nd:Glass Laser

scholarly journals Efficient broadband third-harmonic frequency conversion via angular dispersion

1995 ◽  
Author(s):  
Deanna M. Pennington ◽  
Mark A. Henesian ◽  
David Milam ◽  
David Eimerl
Keyword(s):  
Frequency Conversion ◽  
Angular Dispersion ◽  
Harmonic Frequency ◽  
Third Harmonic

Impact of spatial modulation on the third harmonic wave propagation and far-field focal spot in frequency conversion system

Optik ◽  
2014 ◽  
Vol 125 (14) ◽  
pp. 3628-3632
Author(s):  
M.Z. Sun ◽  
J.Y. Zhang ◽  
Y.L. Zhang ◽  
Q.Y. Bi ◽  
X.L. Xie ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Frequency Conversion ◽  
Focal Spot ◽  
Harmonic Wave ◽  
Spatial Modulation ◽  
Far Field ◽  
Third Harmonic ◽  
The Third ◽  
Conversion System

Enhanced ion acceleration by using femtosecond laser pulses at the third harmonic frequency

2015 ◽  
Author(s):  
J. Psikal ◽  
O. Klimo ◽  
S. Weber ◽  
D. Margarone ◽  
J. Limpouch ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Ion Acceleration ◽  
Harmonic Frequency ◽  
Third Harmonic ◽  
The Third

scholarly journals Ultrafast Third-Order Nonlinear Optical Response Excited by fs Laser Pulses at 1550 nm in GaN Crystals

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3194
Author(s):  
Adrian Petris ◽  
Petronela Gheorghe ◽  
Tudor Braniste ◽  
Ion Tiginyanu
Keyword(s):  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Laser Pulses ◽  
Third Harmonic Generation ◽  
High Repetition Rate ◽  
Third Order ◽  
Third Harmonic ◽  
The Third ◽  
High Repetition ◽  
Gan Crystal

The ultrafast third-order optical nonlinearity of c-plane GaN crystal, excited by ultrashort (fs) high-repetition-rate laser pulses at 1550 nm, wavelength important for optical communications, is investigated for the first time by optical third-harmonic generation in non-phase-matching conditions. As the thermo-optic effect that can arise in the sample by cumulative thermal effects induced by high-repetition-rate laser pulses cannot be responsible for the third-harmonic generation, the ultrafast nonlinear optical effect of solely electronic origin is the only one involved in this process. The third-order nonlinear optical susceptibility of GaN crystal responsible for the third-harmonic generation process, an important indicative parameter for the potential use of this material in ultrafast photonic functionalities, is determined.

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