Origin, Strength, and Speed of the Nonlinear Optical Response of Transparent Conducting Oxides to Single‐Cycle Optical Pulses
Ieng‐Wai Un, Subhajit Sarkar, Yonatan Sivan · 2026
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Description
Ieng-Wai Un, Subhajit Sarkar, and Yonatan Sivan model how clear conducting oxides respond to extremely short, intense pulses of light. These materials bend light in nonlinear ways, which suits fast optical devices. Most past work used longer pulses or simpler materials. Single-cycle pulses push matter far from calm balance, where theory is harder.
Working from first principles, the team built a density matrix model of the electron system. They found a strong heat-based nonlinearity, joined by glow from excited states and extra absorption. The response also carries fine quantum ripples. Their math shows electrons settle among themselves within a few femtoseconds. That speed backs up how lab groups read recent high-harmonic light tests. The work sharpens the physics base for ultrafast optical tools.
Catalog record
| CREATOR | Ieng‐Wai Un, Subhajit Sarkar, Yonatan Sivan |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 34 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |