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Counting near-infrared single-photons with 95% efficiency.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lita, Adriana E. Miller, Aaron J. Nam, Sae Woo |
| Copyright Year | 2008 |
| Abstract | Single-photon detectors operating at visible and near-infrared wavelengths with high detection efficiency and low noise are a requirement for many quantum-information applications. Superconducting transition-edge sensors (TESs) are capable of detecting visible and near-infrared light at the single-photon level and are capable of discriminating between one- and two-photon absorption events; however these capabilities place stringent design requirements on the TES heat capacity, thermometry, and optical detection efficiency. We describe the fabrication and evaluation of a fiber-coupled, photon-number-resolving TES detector optimized for absorption at 1550 and 1310 nm wavelengths. The measured system detection efficiency at 1556 nm is 95 % +/- 2 %, which to our knowledge is the highest system detection efficiency reported for a near-infrared single-photon detector. |
| Starting Page | 89 |
| Ending Page | 94 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ws680.nist.gov/publication/get_pdf.cfm?pub_id=32855 |
| PubMed reference number | 18542389v1 |
| Volume Number | 16 |
| Issue Number | 5 |
| Journal | Optics express |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | A Fibers Detectors Infrared Rays N-tris(hydroxymethyl)methyl-2-aminomethane sulfonate Photons Thermometry Tissue fiber sensor (device) wavelength |
| Content Type | Text |
| Resource Type | Article |
