The bandgap, i.e. the energy gap between the highest lying valence and the lowest lying conduction band, is a defining property of insulating solids, governing how they absorb light and conduct electricity. Tracking how a bandgap changes under strong laser excitation has been a long-standing challenge, since the underlying processes unfold on femtosecond timescales and are difficult to track directly, especially for wide-bandgap dielectrics.

In a collaboration between the Max-Born-Institute, ARCNL Amsterdam, and Aarhus University, researchers have now shown that extreme ultraviolet (XUV) high-harmonic interferometry can provide direct access to such dynamics.

Using pairs of phase-locked near-infrared laser pulses, the team measured interference fringes and their intensity-dependent shift in the generated high-order harmonics from silica glass (SiO₂) and magnesium oxide (MgO).

Figma MCP flaw CVE-2025–53967 lets attackers execute arbitrary code; patch released in version 0.6.3. (.

Deep beneath the North Sea, researchers have mapped giant buried mounds and “sinkites” that turn a basic rule of geology on its head.

A new peer reviewed study shows that heavy, younger sands sank downward while older, lighter layers rose, forming hidden hills under the seafloor.

Scientists at the University of Hawai‘i have discovered why it “rains” on the Sun, revealing that changing elemental makeup drives the mysterious downpours of plasma. It rains on the Sun, and scientists at the University of Hawaiʻi Institute for Astronomy (IfA) have finally uncovered the reason w

Redis fixes 13-year CVSS 10 flaw allowing Lua script-based remote code execution in all versions.