Demonstration of a titled-pulse-front pumped plane-parallel slab terahertz source

Priyo S. Nugraha, Gergo Krizsán, Csaba Lombosi, László Pálfalvi, György Tóth, Gábor Almási, József A. Fülöp, János Hebling

Research output: Conference contribution

Abstract

The study and control of materials with extremely strong THz fields [1, 2], or the acceleration and manipulation of electrons [3] and protons [4] are emerging applications which require THz sources with unprecedented parameters. Optical rectification of femtosecond pulses with tilted pulse front in lithium niobate (LN) [5] has become a standard technique for efficient THz generation. Conventionally [1, 5, 6], a prism-shaped LN crystal is used with a large wedge angle equal to the pulse-front tilt (63°). This results in a nonuniform pump propagation length across the beam, which lead to a spatially varying interaction length for THz generation. This negatively affects the THz beam quality and focusability, thereby limiting the achievable field strength. In order to provide uniform interaction length across large pump and THz beams, we have proposed a setup, where the nonlinear medium is a plane-parallel LN slab with an echelon structure on its input surface [7] (NLES, Fig. 1). Inside the LN slab, a segmented tilted pulse front is formed with an average tilt angle as required by phase matching.

Original languageEnglish
Title of host publication2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728104690
DOIs
Publication statusPublished - jún. 2019
Event2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany
Duration: jún. 23 2019jún. 27 2019

Publication series

Name2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

Conference

Conference2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
CountryGermany
CityMunich
Period6/23/196/27/19

    Fingerprint

ASJC Scopus subject areas

  • Spectroscopy
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications

Cite this

Nugraha, P. S., Krizsán, G., Lombosi, C., Pálfalvi, L., Tóth, G., Almási, G., Fülöp, J. A., & Hebling, J. (2019). Demonstration of a titled-pulse-front pumped plane-parallel slab terahertz source. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 [8871618] (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CLEOE-EQEC.2019.8871618