Various applications in the rapidly growing field of quantum information science require reliable and efficient quantum light sources. We observed superconducting proximity in semiconductor light-emitting diodes. These hybrid structures were proposed by us as an efficient approach for generation of entangled photons, based on Cooper-pair luminescence in semiconductors. We study a new effect of enhanced light amplification in electrically-driven semiconductor-superconductor structures, including Cooper-pair based two-photon gain. Moreover, we investigate a compact and highly-efficient scheme for a complete Bell-state analysis using two-photon absorption in a superconducting proximity region of a semiconductor avalanche photodiode. This Cooper-pair based two-photon absorption results in a strong detection preference of a specified entangled state.
- Andreev Reflection in a Superconducting Light-Emitting Diode
D. Panna, S. Bouscher, K. Balasubramanian, V. Perepelook, S. Cohen, D. Ritter, and A. Hayat, Nano Letters 18, 6764 (2018).
- Andreev reflection enhancement in semiconductor-superconductor structures
S. Bouscher, R. Winik, and A. Hayat, Phys. Rev. B 97, 054512 (2018). (PDF)
- Semiconductor-superconductor hybrid devices
S. Bouscher, D. Panna and A. Hayat, J. of Optics, 19, 103003 (2017) invited paper(PDF)
- Cooper-pair based photon entanglement without isolated emitters.
A. Hayat, H-Y. Kee, K. S. Burch, A. M. Steinberg, Phys. Rev. B, 89, 094508 (2014). (PDF)
- Light amplification in semiconductor-superconductor structures
R. Marjieh, E. Sabag and A. Hayat, New J. Phys. 18, 023019 (2016)
- Photonic Bell-state analysis based on semiconductor-superconductor structures
E. Sabag, S. Bouscher, R. Marjieh, and A. Hayat, Phys. Rev. B 95, 094503 (2017). (PDF)