Nonlinear Dielectric Metasurfaces for Terahertz Applications
The terahertz (THz) region of the electromagnetic spectrum, spanning from 0.1 to 30 THz, represents a prospering area in photonics, with transformative applications in imaging, communications, and material analysis. However, the development of efficient and compact THz sources has long been hampered...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-04-01
|
| Series: | Photonics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6732/12/4/370 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849713577883074560 |
|---|---|
| author | Forouzan Habibighahfarokhi Olga Sergaeva Luca Carletti Paolo Franceschini Andrea Tognazzi Andrea Locatelli Unai Arregui Leon Giuseppe Della Valle Costantino De Angelis Davide Rocco |
| author_facet | Forouzan Habibighahfarokhi Olga Sergaeva Luca Carletti Paolo Franceschini Andrea Tognazzi Andrea Locatelli Unai Arregui Leon Giuseppe Della Valle Costantino De Angelis Davide Rocco |
| author_sort | Forouzan Habibighahfarokhi |
| collection | DOAJ |
| description | The terahertz (THz) region of the electromagnetic spectrum, spanning from 0.1 to 30 THz, represents a prospering area in photonics, with transformative applications in imaging, communications, and material analysis. However, the development of efficient and compact THz sources has long been hampered by intrinsic material limitations, inefficient conversion processes, and complex phase-matching requirements. Recent breakthroughs in nonlinear optical mechanisms, resonant metasurface engineering, and advances in the fabrication processes for materials such as lithium niobate (LN) and aluminum gallium arsenide (AlGaAs) have paved the way for innovative THz generation techniques. This review article explores the latest theoretical advances, together with key experimental results and outlines perspectives for future developments. |
| format | Article |
| id | doaj-art-fdc293f9afb84f64b5a174c1950f95f0 |
| institution | DOAJ |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-fdc293f9afb84f64b5a174c1950f95f02025-08-20T03:13:55ZengMDPI AGPhotonics2304-67322025-04-0112437010.3390/photonics12040370Nonlinear Dielectric Metasurfaces for Terahertz ApplicationsForouzan Habibighahfarokhi0Olga Sergaeva1Luca Carletti2Paolo Franceschini3Andrea Tognazzi4Andrea Locatelli5Unai Arregui Leon6Giuseppe Della Valle7Costantino De Angelis8Davide Rocco9Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyDepartment of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyDepartment of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyDepartment of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyNational Institute of Optics, Consiglio Nazionale delle Ricerche, Via Branze 45, 25123 Brescia, ItalyDepartment of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyDepartment of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyDepartment of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, ItalyThe terahertz (THz) region of the electromagnetic spectrum, spanning from 0.1 to 30 THz, represents a prospering area in photonics, with transformative applications in imaging, communications, and material analysis. However, the development of efficient and compact THz sources has long been hampered by intrinsic material limitations, inefficient conversion processes, and complex phase-matching requirements. Recent breakthroughs in nonlinear optical mechanisms, resonant metasurface engineering, and advances in the fabrication processes for materials such as lithium niobate (LN) and aluminum gallium arsenide (AlGaAs) have paved the way for innovative THz generation techniques. This review article explores the latest theoretical advances, together with key experimental results and outlines perspectives for future developments.https://www.mdpi.com/2304-6732/12/4/370optical rectificationresonant dielectric metasurfaceslocalized surface phonon-polaritons |
| spellingShingle | Forouzan Habibighahfarokhi Olga Sergaeva Luca Carletti Paolo Franceschini Andrea Tognazzi Andrea Locatelli Unai Arregui Leon Giuseppe Della Valle Costantino De Angelis Davide Rocco Nonlinear Dielectric Metasurfaces for Terahertz Applications Photonics optical rectification resonant dielectric metasurfaces localized surface phonon-polaritons |
| title | Nonlinear Dielectric Metasurfaces for Terahertz Applications |
| title_full | Nonlinear Dielectric Metasurfaces for Terahertz Applications |
| title_fullStr | Nonlinear Dielectric Metasurfaces for Terahertz Applications |
| title_full_unstemmed | Nonlinear Dielectric Metasurfaces for Terahertz Applications |
| title_short | Nonlinear Dielectric Metasurfaces for Terahertz Applications |
| title_sort | nonlinear dielectric metasurfaces for terahertz applications |
| topic | optical rectification resonant dielectric metasurfaces localized surface phonon-polaritons |
| url | https://www.mdpi.com/2304-6732/12/4/370 |
| work_keys_str_mv | AT forouzanhabibighahfarokhi nonlineardielectricmetasurfacesforterahertzapplications AT olgasergaeva nonlineardielectricmetasurfacesforterahertzapplications AT lucacarletti nonlineardielectricmetasurfacesforterahertzapplications AT paolofranceschini nonlineardielectricmetasurfacesforterahertzapplications AT andreatognazzi nonlineardielectricmetasurfacesforterahertzapplications AT andrealocatelli nonlineardielectricmetasurfacesforterahertzapplications AT unaiarreguileon nonlineardielectricmetasurfacesforterahertzapplications AT giuseppedellavalle nonlineardielectricmetasurfacesforterahertzapplications AT costantinodeangelis nonlineardielectricmetasurfacesforterahertzapplications AT daviderocco nonlineardielectricmetasurfacesforterahertzapplications |