Measurement of the Entangled Two‐Photon Absorption Cross‐Sections of 4‐Aminoazobenzene
Sena Hashimoto, Hisaki Oka, Izumi Iwakura, Tomoyuki Horikiri · 2026
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Description
Sena Hashimoto, Hisaki Oka, Izumi Iwakura, and Tomoyuki Horikiri measure in 2026 how strongly a dye molecule absorbs pairs of entangled photons. Entangled two-photon absorption has drawn wide interest, but published values for its strength scatter enormously, leaving the field unsure what to trust.
The team chose 4-aminoazobenzene, a dye that barely absorbs single photons at the wavelengths of their entangled pairs. By timing how photon pairs pass through the sample and sorting linked from unlinked counts, they split the true effect from plain light loss. The measured strength sits far below one-photon absorption yet far above ordinary two-photon absorption.
Catalog record
| CREATOR | Sena Hashimoto, Hisaki Oka, Izumi Iwakura, Tomoyuki Horikiri |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 35 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |