High energy THz pulse generation by tilted pulse front excitation and its nonlinear optical applications

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Abstract

Generation of high energy THz pulses by tilted pulse front excitation is reviewed. The basic idea and the realized setups are described. Properties of THz pulses generated by using different pump lasers are summarized. Nonlinear optical effects induced by the high energy THz pulses were observed, such as nonlinear refraction, self-phase modulation, saturation of THz absorption, and free carrier generation. The main results on these phenomena are described. The possibility of using THz pulses as a quasi-dc field for increasing the cut-off frequency in high harmonic generation is analyzed. The THz generation setup used in recent experiments is analyzed and arrangements for achieving better THz beam quality and higher THz pulse energy are considered. Finally, some results of calculations indicating significantly increased generation efficiency of 0.2-THz pulses compared to generation efficiency of 1-THz pulses are presented.

Original languageEnglish
Pages (from-to)553-561
Number of pages9
JournalJournal of Infrared, Millimeter, and Terahertz Waves
Volume32
Issue number5
DOIs
Publication statusPublished - May 2011

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Self phase modulation
Beam quality
Cutoff frequency
Harmonic generation
pulses
Refraction
excitation
Laser pulses
Pumps
energy
Lasers
Experiments
phase modulation
refraction
harmonic generations
cut-off
pumps
saturation
lasers

Keywords

  • Optical rectification
  • Terahertz generation
  • Tilted pulse front excitation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Radiation
  • Instrumentation

Cite this

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title = "High energy THz pulse generation by tilted pulse front excitation and its nonlinear optical applications",
abstract = "Generation of high energy THz pulses by tilted pulse front excitation is reviewed. The basic idea and the realized setups are described. Properties of THz pulses generated by using different pump lasers are summarized. Nonlinear optical effects induced by the high energy THz pulses were observed, such as nonlinear refraction, self-phase modulation, saturation of THz absorption, and free carrier generation. The main results on these phenomena are described. The possibility of using THz pulses as a quasi-dc field for increasing the cut-off frequency in high harmonic generation is analyzed. The THz generation setup used in recent experiments is analyzed and arrangements for achieving better THz beam quality and higher THz pulse energy are considered. Finally, some results of calculations indicating significantly increased generation efficiency of 0.2-THz pulses compared to generation efficiency of 1-THz pulses are presented.",
keywords = "Optical rectification, Terahertz generation, Tilted pulse front excitation",
author = "J. F{\"u}l{\"o}p and L. P{\'a}lfalvi and G. Alm{\'a}si and J. Hebling",
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TY - JOUR

T1 - High energy THz pulse generation by tilted pulse front excitation and its nonlinear optical applications

AU - Fülöp, J.

AU - Pálfalvi, L.

AU - Almási, G.

AU - Hebling, J.

PY - 2011/5

Y1 - 2011/5

N2 - Generation of high energy THz pulses by tilted pulse front excitation is reviewed. The basic idea and the realized setups are described. Properties of THz pulses generated by using different pump lasers are summarized. Nonlinear optical effects induced by the high energy THz pulses were observed, such as nonlinear refraction, self-phase modulation, saturation of THz absorption, and free carrier generation. The main results on these phenomena are described. The possibility of using THz pulses as a quasi-dc field for increasing the cut-off frequency in high harmonic generation is analyzed. The THz generation setup used in recent experiments is analyzed and arrangements for achieving better THz beam quality and higher THz pulse energy are considered. Finally, some results of calculations indicating significantly increased generation efficiency of 0.2-THz pulses compared to generation efficiency of 1-THz pulses are presented.

AB - Generation of high energy THz pulses by tilted pulse front excitation is reviewed. The basic idea and the realized setups are described. Properties of THz pulses generated by using different pump lasers are summarized. Nonlinear optical effects induced by the high energy THz pulses were observed, such as nonlinear refraction, self-phase modulation, saturation of THz absorption, and free carrier generation. The main results on these phenomena are described. The possibility of using THz pulses as a quasi-dc field for increasing the cut-off frequency in high harmonic generation is analyzed. The THz generation setup used in recent experiments is analyzed and arrangements for achieving better THz beam quality and higher THz pulse energy are considered. Finally, some results of calculations indicating significantly increased generation efficiency of 0.2-THz pulses compared to generation efficiency of 1-THz pulses are presented.

KW - Optical rectification

KW - Terahertz generation

KW - Tilted pulse front excitation

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