Details

Autor(en) / Beteiligte

• Haldar, Subhomoy
• Zenelaj, Drilon
• Potts, Patrick
• Havir, Harald
• Lehmann, Sebastian
• Dick, Kimberly
• Samuelsson, Peter
• Maisi, Ville

Titel

Microwave power harvesting using resonator-coupled double quantum dot photodiode

Ist Teil von

• Physical review. B, 2024-02, Vol.109 (8)

Erscheinungsjahr

2024

Link zum Volltext

Quelle

APS_美国物理学会期刊

Beschreibungen/Notizen

• We demonstrate a microwave power-to-electrical energy conversion in a resonator-coupled double quantum dot. The system, operated as a photodiode, converts individual microwave photons to electrons tunneling through the double dot, resulting in an electrical current flowing against the applied voltage bias at input powers down to 1 fW. The device attains a maximum power harvesting efficiency of 2%, with the photon-to-electron conversion efficiency reaching 12% in the single-photon absorption regime. We find that the power conversion depends on thermal effects showing that thermodynamics plays a crucial role in the single-photon energy conversion.