Fourth‐harmonic generation of picosecond glass laser pulses with cesium lithium borate crystals

1996 ◽  
Vol 69 (25) ◽  
pp. 3812-3814 ◽  
Author(s):  
Lalit B. Sharma ◽  
H. Daido ◽  
Y. Kato ◽  
S. Nakai ◽  
T. Zhang ◽  
...  
Keyword(s):  
Harmonic Generation ◽  
Laser Pulses ◽  
Lithium Borate ◽  
Glass Laser ◽  
Fourth Harmonic

Highly efficient fourth harmonic generation ofbroadband laser pulses retaining 3D pulse shape

2021 ◽  
Author(s):  
Igor Kuzmin ◽  
Sergey Mironov ◽  
Mikhail Martyanov ◽  
Anatoly Poteomkin ◽  
Efim Khazanov
Keyword(s):  
Harmonic Generation ◽  
Pulse Shape ◽  
Laser Pulses ◽  
Fourth Harmonic ◽  
Highly Efficient

Second, third, and fourth harmonic generation of amplified femtosecond Ti:sapphire laser pulses

1996 ◽  
Author(s):  
Vitaly N. Krylov ◽  
Alexander G. Kalintsev ◽  
Aleksander Rebane ◽  
Daniel Erni ◽  
Urs P. Wild
Keyword(s):  
Harmonic Generation ◽  
Laser Pulses ◽  
Ti:Sapphire Laser ◽  
Fourth Harmonic

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.

Molecules in strong laser fields: vibrational inversion and harmonic generation

1994 ◽  
Vol 72 (3) ◽  
pp. 673-677 ◽  
Author(s):  
Eric E. Aubanel ◽  
André D. Bandrauk
Keyword(s):  
Harmonic Generation ◽  
Laser Pulses ◽  
Harmonic Spectrum ◽  
Femtosecond Laser Pulses ◽  
Generation Process ◽  
High Order Harmonic Generation ◽  
Vibrationally Excited ◽  
Potential Wells ◽  
High Order Harmonic ◽  
Vibrational Levels

We examine two consequences of the unique behaviour of molecules in strong fields. First, by time gating of laser-induced avoided crossings with femtosecond laser pulses, one can obtain efficient vibrational inversion into a narrow distribution of vibrational levels of a molecular ion. We demonstrate this by numerical solution of the time-dependent Schrödinger equation for [Formula: see text] Second, we show results of numerical calculation with vibrationally excited [Formula: see text] of harmonic generation up to the 11th order of an intense 1064- nm laser. We predict that competition of photodissociation can be minimized by trapping the molecule in high-field-induced potential wells, thus enhancing the high-order harmonic generation process. Furthermore, the harmonic spectrum can serve as a measure of the structure of these laser-induced potentials.

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