Results 161 to 170 of about 40,370 (319)
Spontaneous Parametric Down‐Conversion in 4H‐SiC Integrated Platform
Photon‐pair generation in 4H‐SiC‐on‐insulator integrated platform is demonstrated through spontaneous parametric down conversion. Different second‐order nonlinear interactions are also shown in 4H‐SiC waveguides, highlighting the potential to exploit diverse phase‐matching mechanisms on this platform.
Xiaodong Shi+12 more
wiley +1 more source
Generation of Terahertz Radiation and Its Spectroscopic Application
Masahiko TAM+2 more
openalex +2 more sources
1 PHz of Coherent Bandwidth from a Compact Fiber Device
A coherent comb spectrum with an unprecedented bandwidth of 1 PHz, spanning from the deep ultraviolet (280 nm) to the mid‐infrared (2700 nm), is generated by a compact fiber device. The integrated, novel pulse purification technology enables broadband dispersion control and the synthesis of low‐noise, single‐cycle near‐infrared pulses with a clean ...
Sarah R. Hutter+4 more
wiley +1 more source
THz Generation by Two-Color Plasma: Time Shaping and Ultra-Broadband Polarimetry
The generation of terahertz radiation via laser-induced plasma from two-color femtosecond pulses in air has been extensively studied due to its broad emission spectrum and significant pulse energy. However, precise control over the temporal properties of
Domenico Paparo+5 more
doaj +1 more source
This study leverages STM technology to enhance NFF performance by enabling continuous phase control at the +1st harmonic without increasing hardware complexity. It overcomes the limitations of conventional 1‐bit TMs caused by phase quantization errors and demonstrates that even compact arrays can achieve effective focusing, highlighting the strong ...
Manting Wang+7 more
wiley +1 more source
Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging. [PDF]
Leibov L+6 more
europepmc +1 more source
A Dual‐Programmable Metasurface with Duplex Beam Steering for Full‐Space Terahertz Communications
A dual‐programmable terahertz metasurface enables independent control of transmission and reflection beam steering. It breaks through the limitations in resonant tunability by polarization allocation with 2D‐electron‐gas tuning, enabling a single resonator to incorporate bidirectional operating modes.
Luyang Wang+15 more
wiley +1 more source
Optical generation of strong-field terahertz radiation and its application in nonlinear terahertz metasurfaces. [PDF]
Ma Z, Li P, Chen S, Wu X.
europepmc +1 more source
Room‐temperature mid‐infrared (MIR) detectors are demonstrated using lithium niobate surface acoustic wave phononic crystal oscillators integrated with metasurface absorbers. The devices exhibit rapid thermal response and simplified fabrication compared to suspended resonators.
Zichen Xi+11 more
wiley +1 more source