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. Gaümann, T. Feurer, J. Hebling, J. A. 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 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 - Jun 2019
Event2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany
Duration: Jun 23 2019Jun 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

Polónyi, G., Monoszlai, B., Nugraha, P. S., Tóth, G., Pálfalvi, L., Nasi, L., Ollmann, Z., Rohwer, E. J., Gaümann, G., Feurer, T., Hebling, J., & Fülöp, J. A. (2019). Measurement of effective four-photon absorption in semiconductors. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 [8871863] (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.2019.8871863