Design of a high-energy terahertz pulse source based on ZnTe contact grating

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

A compact, particularly robust, and scalable high-energy THz pulse source is proposed based on optical rectification of femtosecond laser pulses in ZnTe by using a contact grating. It is shown by numerical calculations that diffraction efficiencies as high as 80% and 90% can be achieved with sinusoidal and binary contact grating profiles, respectively, in the 1.4-1.7 μm pump wavelength range, where no two-photon absorption is present, thereby allowing higher pump intensities. Detailed design parameters are given. The contact grating technology based on ZnTe or other semiconductors can be an efficient source of intense THz pulses with mJ-level energy.

Original languageEnglish
Pages (from-to)159-163
Number of pages5
JournalOptics Communications
Volume315
DOIs
Publication statusPublished - 2014

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Pumps
gratings
Diffraction efficiency
pulses
Ultrashort pulses
Electron energy levels
pumps
Photons
rectification
Semiconductor materials
Wavelength
energy
energy levels
photons
profiles
diffraction
wavelengths
lasers

Keywords

  • Contact grating
  • Nonlinear optics
  • Optical rectification
  • THz source
  • Tilted pulse front pumping
  • Zinc telluride

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Design of a high-energy terahertz pulse source based on ZnTe contact grating. / Ollmann, Z.; Fülöp, J.; Hebling, J.; Almási, G.

In: Optics Communications, Vol. 315, 2014, p. 159-163.

Research output: Contribution to journalArticle

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