- Tytuł:
- Detection of Single Submillimeter-Wave Photons Using Quantum Dots
- Autorzy:
-
Komiyama, S.
Astafiev, O.
Antonov, V.
Kutsuwa, T. - Powiązania:
- https://bibliotekanauki.pl/articles/2014189.pdf
- Data publikacji:
- 2000-09
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
73.40.Hm
76.40.+b
72.20.Ht - Opis:
- Single-photon detection in a range of submillimeter waves (λ = 0.17-0.20 mm) is demonstrated by using lateral semiconductor quantum dots fabricated on a high-mobility GaAs/AlGaAs single heterostructure crystal. When a submillimeter photon is absorbed by the quantum dot while it is operated as a single-electron transistor, it switches on (or off) the conductance through the quantum dot. An incident flux of 0.1 photons/s on an effective detector area, (0.1 mm)$\text{}^{2}$, is detected with a 1 ms time resolution. The effective noise equivalent power is roughly estimated to reach on the order of 10$\text{}^{-22}$ W/Hz$\text{}^{1}\text{}^{/}\text{}^{2}$ , a value superior to the ever reported best values of conventional detectors by a factor more than 10$\text{}^{4}$.
- Źródło:
-
Acta Physica Polonica A; 2000, 98, 3; 271-278
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł