Ultrafast terahertz emission from emerging symmetry-broken materials

J Pettine, P Padmanabhan, N Sirica… - Light: Science & …, 2023 - nature.com
Nonlinear optical spectroscopies are powerful tools for investigating both static material
properties and light-induced dynamics. Terahertz (THz) emission spectroscopy has …

Frequency comb measurements for 6G terahertz nano/microphotonics and metamaterials

G Kang, Y Lee, J Kim, D Yang, HK Nam, S Kim… - …, 2024 - degruyter.com
Next-generation 6G communication holds the potential to revolutionize data transfer,
enabling the realization of eXtended Reality (XR) with enhanced sensory experiences. To …

Nonlinear THz generation through optical rectification enhanced by phonon–polaritons in lithium niobate thin films

L Carletti, C McDonnell, U Arregui Leon, D Rocco… - ACS …, 2023 - ACS Publications
We investigate nonlinear THz generation from lithium niobate films and crystals of different
thicknesses by optical rectification of near-infrared femtosecond pulses. A comparison …

Simultaneous terahertz pulse generation and manipulation with spintronic coding surface

S Chen, H Wang, J Liu, M Zhang… - Advanced Optical …, 2024 - Wiley Online Library
The utilization of spintronic terahertz (THz) emitters has a significant influence on broadband
coherent spectroscopy and imaging at THz frequencies. By using femtosecond light to …

Generation of a focused thz vortex beam from a spintronic THz emitter with a helical fresnel zone plate

X Zhang, Y Xu, B Hong, F Zhang, A Wang, W Zhao - Nanomaterials, 2023 - mdpi.com
Similar to optical vortex beams, terahertz (THz) vortex beams (TVBs) also carry orbital
angular momentum (OAM). However, little research has been reported on the generation of …

THz Generation via Optical Rectification in Nanomaterials: Universal Modeling Approach and Effective χ¯¯(2) ̄̄χ^(2) Description

U Arregui Leon, L Carletti, D Rocco… - Laser & Photonics …, 2024 - Wiley Online Library
Optical rectification (OR) at the nanoscale has attracted an increasing interest in the
prospect of providing efficient ultracompact terahertz (THz) sources. Here, a universal …

Compact all-dielectric metasurface for full polarization detection at the long-wavelength infrared region

K Guo, C Wang, Q Kang, Z Guo - Applied Optics, 2023 - opg.optica.org
Metasurfaces have been extensively demonstrated in engineering and detection of
polarization of light from the visible to terahertz regions. However, most of the previous …

Holographic THz Beam Generation by Nonlinear Plasmonic Metasurface Emitters

S Sideris, H Zixian, C McDonnell, G Li… - ACS …, 2023 - ACS Publications
The advancement of terahertz (THz) technology hinges on the progress made in the
development of efficient sources capable of generating and shaping the THz emission …

[HTML][HTML] Nonlinear Meta-Devices: From Plasmonic to Dielectric

R Lin, J Yao, Z Wang, CT Chan, DP Tsai - Engineering, 2024 - Elsevier
Meta-devices have significantly revitalized the study of nonlinear optical phenomena. At the
nanoscale, the detrimental effects of phase mismatching between fundamental and …

High-Aspect-Ratio Silicon Metasurfaces: Design, Fabrication, and Characterization

Y Yao, Z Wang, Z Zhu, Y He, S Sun, L Zhou, Q He - Applied Sciences, 2023 - mdpi.com
Unrestricted manipulations on terahertz (THz) waves are highly desired in integration-optics,
but THz devices based on conventional materials are usually bulky in size. Although all …