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Organic Kainate Single Crystals for Second-Harmonic and Broadband THz Generation
[Image: see text] Organic crystals with unique nonlinear optical properties have been attracting attention owing to their capability to outperform their conventional nonorganic counterparts. Since nonlinear material responses are linked to a crystal’s internal microscopic structure, molecular engine...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9940106/ https://www.ncbi.nlm.nih.gov/pubmed/36729720 http://dx.doi.org/10.1021/acsami.2c18454 |
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author | Barhum, Hani McDonnell, Cormac Alon, Tmiron Hammad, Raheel Attrash, Mohammed Ellenbogen, Tal Ginzburg, Pavel |
author_facet | Barhum, Hani McDonnell, Cormac Alon, Tmiron Hammad, Raheel Attrash, Mohammed Ellenbogen, Tal Ginzburg, Pavel |
author_sort | Barhum, Hani |
collection | PubMed |
description | [Image: see text] Organic crystals with unique nonlinear optical properties have been attracting attention owing to their capability to outperform their conventional nonorganic counterparts. Since nonlinear material responses are linked to a crystal’s internal microscopic structure, molecular engineering of maximally unharmonic quantum potentials can boost macromolecular susceptibilities. Here, large-scale kainic acid (kainate) single crystals were synthesized, and their linear and nonlinear optical properties were studied in a broad spectral range, spanning the visible to THz spectral regions. The non-centrosymmetric zwitterionic crystallization, molecular structure, and intermolecular arrangement were found to act as additive donor–acceptor domains, enhancing the efficiency of the intrinsic second-order optical nonlinearity of this pure enantiomeric crystal. Molecular simulations and experimental analysis were performed to retrieve the crystals’ properties. The crystals were predicted and found to have good transparency in a broad spectral range from the UV to the infrared (0.2–20 μm). Second-harmonic generation was measured for ultrashort pumping wavelengths between 800 and 2400 nm, showing an enhanced response around 600 nm. Broadband THz generation was demonstrated with a detection limited bandwidth of >8 THz along with emission efficiencies comparable to and prevailing those of commercial ZnTe crystals. The broadband nonlinear response and high transparency make kainate crystals extremely attractive for realizing a range of nonlinear optical devices. |
format | Online Article Text |
id | pubmed-9940106 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-99401062023-02-21 Organic Kainate Single Crystals for Second-Harmonic and Broadband THz Generation Barhum, Hani McDonnell, Cormac Alon, Tmiron Hammad, Raheel Attrash, Mohammed Ellenbogen, Tal Ginzburg, Pavel ACS Appl Mater Interfaces [Image: see text] Organic crystals with unique nonlinear optical properties have been attracting attention owing to their capability to outperform their conventional nonorganic counterparts. Since nonlinear material responses are linked to a crystal’s internal microscopic structure, molecular engineering of maximally unharmonic quantum potentials can boost macromolecular susceptibilities. Here, large-scale kainic acid (kainate) single crystals were synthesized, and their linear and nonlinear optical properties were studied in a broad spectral range, spanning the visible to THz spectral regions. The non-centrosymmetric zwitterionic crystallization, molecular structure, and intermolecular arrangement were found to act as additive donor–acceptor domains, enhancing the efficiency of the intrinsic second-order optical nonlinearity of this pure enantiomeric crystal. Molecular simulations and experimental analysis were performed to retrieve the crystals’ properties. The crystals were predicted and found to have good transparency in a broad spectral range from the UV to the infrared (0.2–20 μm). Second-harmonic generation was measured for ultrashort pumping wavelengths between 800 and 2400 nm, showing an enhanced response around 600 nm. Broadband THz generation was demonstrated with a detection limited bandwidth of >8 THz along with emission efficiencies comparable to and prevailing those of commercial ZnTe crystals. The broadband nonlinear response and high transparency make kainate crystals extremely attractive for realizing a range of nonlinear optical devices. American Chemical Society 2023-02-02 /pmc/articles/PMC9940106/ /pubmed/36729720 http://dx.doi.org/10.1021/acsami.2c18454 Text en © 2023 American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Barhum, Hani McDonnell, Cormac Alon, Tmiron Hammad, Raheel Attrash, Mohammed Ellenbogen, Tal Ginzburg, Pavel Organic Kainate Single Crystals for Second-Harmonic and Broadband THz Generation |
title | Organic Kainate Single
Crystals for Second-Harmonic
and Broadband THz Generation |
title_full | Organic Kainate Single
Crystals for Second-Harmonic
and Broadband THz Generation |
title_fullStr | Organic Kainate Single
Crystals for Second-Harmonic
and Broadband THz Generation |
title_full_unstemmed | Organic Kainate Single
Crystals for Second-Harmonic
and Broadband THz Generation |
title_short | Organic Kainate Single
Crystals for Second-Harmonic
and Broadband THz Generation |
title_sort | organic kainate single
crystals for second-harmonic
and broadband thz generation |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9940106/ https://www.ncbi.nlm.nih.gov/pubmed/36729720 http://dx.doi.org/10.1021/acsami.2c18454 |
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