| Download | - View final version: Unity yield of deterministically positioned quantum dot single photon sources (PDF, 2.1 MiB)
|
|---|
| DOI | Resolve DOI: https://doi.org/10.1038/s41598-022-10451-1 |
|---|
| Author | Search for: Laferrière, Patrick1; Search for: Yeung, Edith1; Search for: Miron, Isabelle1; Search for: Northeast, David B.2; Search for: Haffouz, Sofiane1; Search for: Lapointe, Jean1; Search for: Korkusinski, Marek2; Search for: Poole, Philip J.1; Search for: Williams, Robin L.2; Search for: Dalacu, Dan1 |
|---|
| Affiliation | - National Research Council of Canada. Advanced Electronics and Photonics
- National Research Council of Canada. Security and Disruptive Technologies
|
|---|
| Format | Text, Article |
|---|
| Subject | nanoscience and technology; single photons and quantum effects |
|---|
| Abstract | We report on a platform for the production of single photon devices with a fabrication yield of 100%. The sources are based on InAsP quantum dots embedded within position-controlled bottom-up InP nanowires. Using optimized growth conditions, we produce large arrays of structures having highly uniform geometries. Collection efficiencies are as high as 83% and multiphoton emission probabilities as low as 0.6% with the distribution away from optimal values associated with the excitation of other charge complexes and re-excitation processes, respectively, inherent to the above-band excitation employed. Importantly, emission peak lineshapes have Lorentzian profiles indicating that linewidths are not limited by inhomogeneous broadening but rather pure dephasing, likely elastic carrier-phonon scattering due to a high phonon occupation. This work establishes nanowire-based devices as a viable route for the scalable fabrication of efficient single photon sources and provides a valuable resource for hybrid on-chip platforms currently being developed. |
|---|
| Publication date | 2022-04-16 |
|---|
| Publisher | Nature Research |
|---|
| Licence | |
|---|
| In | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | 7a6c030e-014e-4171-8dc4-469eaba425b8 |
|---|
| Record created | 2022-10-07 |
|---|
| Record modified | 2022-10-07 |
|---|
