Refine
Year of publication
Document Type
- Conference Proceeding (134)
- Article (80)
- Preprint (4)
- Part of a Book (3)
- Doctoral Thesis (2)
- Book (1)
- Habilitation (1)
- Other (1)
Institute
- Forschungszentrum Mikrotechnik (226) (remove)
Language
- English (220)
- German (5)
- Multiple languages (1)
Has Fulltext
- no (226) (remove)
Keywords
- arrayed waveguide gratings (11)
- Laser ablation (10)
- Y-branch splitter (8)
- photonics (8)
- integrated optics (6)
- MMI splitter (5)
- insertion loss (5)
- AWG (4)
- AWG design (4)
- Arrayed waveguide gratings (4)
Signatures of the optical stark effect on entangled photon pairs from resonantly-pumped quantum dots
(2023)
Two-photon resonant excitation of the biexciton-exciton cascade in a quantum dot generates highly polarization-entangled photon pairs in a near-deterministic way. However, the ultimate level of achievable entanglement is still debated. Here, we observe the impact of the laser-induced ac-Stark effect on the quantum dot emission spectra and on entanglement. For increasing pulse-duration-to-lifetime ratios and pump powers, decreasing values of concurrence are recorded. Nonetheless, additional contributions are still required to fully account for the observed below-unity concurrence.