Measurement of effective four-photon absorption in semiconductors

Gy Polónyi, B. Monoszlai, P. S. Nugraha, Gy Tóth, L. Pálfalvi, L. Nasi, Z. Ollmann, E. J. Rohwer, G. Gäumann, T. Feurer, J. Hebling, J. Fülöp

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The growing number of near- and mid-infrared laser and parametric sources with ultrashort pulse duration and high pulse energy opens up new possibility for many applications [1,2]. For example, the current direction of developing more efficient Terahertz (THz) sources needs infrared pump sources with sufficiently long wavelength to surpass the low order multiphoton absorption [3-5]. It is challenging to design new experiments for this infrared region in lack of available data of the crystal properties like the four-photon absorption (4PA) coefficient (β4). A commonly used technique to measure the two- (2PA) and three-photon absorption (3PA) of optical materials, is the z-scan method with which the anisotropy of 2PA and 3PA in GaAs was possible to measure [6,7]. In contrast, little is known about the nonlinearities of still higher order, although they can be important in the infrared region.

Original languageEnglish
Title of host publicationThe European Conference on Lasers and Electro-Optics, CLEO_Europe_2019
PublisherOSA - The Optical Society
ISBN (Electronic)9781557528209
Publication statusPublished - Jan 1 2019
EventThe European Conference on Lasers and Electro-Optics, CLEO_Europe_2019 - Munich, Germany
Duration: Jun 23 2019Jun 27 2019

Publication series

NameOptics InfoBase Conference Papers
VolumePart F140-CLEO_Europe 2019

Conference

ConferenceThe European Conference on Lasers and Electro-Optics, CLEO_Europe_2019
CountryGermany
CityMunich
Period6/23/196/27/19

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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  • Cite this

    Polónyi, G., Monoszlai, B., Nugraha, P. S., Tóth, G., Pálfalvi, L., Nasi, L., Ollmann, Z., Rohwer, E. J., Gäumann, G., Feurer, T., Hebling, J., & Fülöp, J. (2019). Measurement of effective four-photon absorption in semiconductors. In The European Conference on Lasers and Electro-Optics, CLEO_Europe_2019 [2019-ce_p_32] (Optics InfoBase Conference Papers; Vol. Part F140-CLEO_Europe 2019). OSA - The Optical Society.