Year: 2025
Type: article
Abstract: 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.
Source: Photonics
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,896
Awards: G1309090239, G2213769070, G2424040835, G3394618972, G4509570436, G4756752273, Metasurfaces for ultrafast light structuring, G4937468798, Multiscale Metasurfaces for Tera Hertz Generation and Radiation by Optical Rectification (METEOR), G5732610452, G6924574103, G7071148125, G7205771190, G8310134065, G972786147
OpenAlex ID: W4409410338