Fano interference of photon pairs from a metasurface
Materials with zinc-blende crystalline structure, such as GaAs, AlGaAs, GaP, InGaP, etc, are particularly attractive for non-linear wave…
Scientists Discover “Virtual Charges” That Exist Only When Light Hits
High-precision optical components used to manipulate attosecond light pulses. Credit: Politecnico di Milano A study led by Politecnico…
New Optics Tech Could Revolutionize Gravitational-Wave Astronomy
A breakthrough in laser instrumentation may transform how we study the universe’s most violent events. Credit: Shutterstock UC…
Tiny Multicolor Metalenses Could Revolutionize Drone and Phone Cameras
Researchers have developed a layered metalens design that can focus multiple colors at once, breaking through fundamental limits…
New Lensless Camera Sees in 3D Using Ancient Pinhole Tech
Researchers use laser light to form a tiny “optical pinhole” inside a nonlinear crystal, which also turns the…
All-optical polarization encoding and modulation by nonlinear interferometry at the nanoscale
Neshev, D. N. & Miroshnichenko, A. E. Enabling smart vision with metasurfaces. Nat. Photonics 17, 26–35 (2023). Article …
A single-photon source based on topological bulk cavity
Design of single-photon source based on topological bulk state Figure 1 provides a detailed illustration of the design…
New laser helps decode rare earth element samarium’s secret spectrum
Scientists in Germany have uncovered previously unknown properties of the rare Earth element samarium by developing a powerful…
Ultrabroadband air-dielectric double-chirped mirrors for laser frequency combs
Design of pump-DUT dimension and measurement procedure As shown in Fig. 2a in the main text, broadband illumination…
Achromatic beam deflector with electrodynamic phased arrays
Chromatic aberration in the beam deflector and its compensation Beam steering with LC leverages its anisotropic characteristics to…
Spin-orbit coupling in van der Waals materials for optical vortex generation
Figure 1a schematically illustrates the creation of optical vortices via spin-orbit coupling in the hBN crystal. As shown…