|
Records |
Links |
|
Author |
Baselmans, J. J. A.; Hajenius, M.; Gao, J. R.; Klapwijk, T. M.; de Korte, P. A. J.; Voronov, B.; Gol'tsman, G. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Doubling of sensitivity and bandwidth in phonon cooled hot electron bolometer mixers |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
|
Year |
2004 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
|
|
Volume |
84 |
Issue |
11 |
Pages |
1958-1960 |
|
|
Keywords |
NbN HEB mixers |
|
|
Abstract |
We demonstrate that the performance of NbN lattice cooled hot electron bolometer mixers depends strongly on the interface quality between the bolometer and the contact structure. We show experimentally that both the receiver noise temperature and the gain bandwidth can be improved by more than a factor of 2 by cleaning the interface and adding an additional superconducting interlayer to the contact pad. Using this we obtain a double sideband receiver noise temperature TN,DSB=950 K
at 2.5 THz and 4.3 K, uncorrected for losses in the optics. At the same bias point, we obtain an IF gain bandwidth of 6 GHz. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
352 |
|
Permanent link to this record |
|
|
|
|
Author |
Korneev, Alexander; Vachtomin, Yury; Minaeva, Olga; Divochiy, Alexander; Smirnov, Konstantin; Okunev, Oleg; Gol'tsman, Gregory; Zinoni, C.; Chauvin, Nicolas; Balet, Laurent; Marsili, Francesco; Bitauld, David; Alloing, Blandine; Li, Lianhe; Fiore, Andrea; Lunghi, L.; Gerardino, Annamaria; Halder, Matthäus; Jorel, Corentin; Zbinden, Hugo |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Single-photon detection system for quantum optics applications |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
|
Year |
2007 |
Publication |
IEEE J. Select. Topics Quantum Electron. |
Abbreviated Journal |
IEEE J. Select. Topics Quantum Electron. |
|
|
Volume |
13 |
Issue |
4 |
Pages |
944-951 |
|
|
Keywords |
SSPD, SNSPD |
|
|
Abstract |
We describe the design and characterization of a fiber-coupled double-channel single-photon detection system based on superconducting single-photon detectors (SSPD), and its application for quantum optics experiments on semiconductor nanostructures. When operated at 2-K temperature, the system shows 10% quantum efficiency at 1.3-¿m wavelength with dark count rate below 10 counts per second and timing resolution <100 ps. The short recovery time and absence of afterpulsing leads to counting frequencies as high as 40 MHz. Moreover, the low dark count rate allows operation in continuous mode (without gating). These characteristics are very attractive-as compared to InGaAs avalanche photodiodes-for quantum optics experiments at telecommunication wavelengths. We demonstrate the use of the system in time-correlated fluorescence spectroscopy of quantum wells and in the measurement of the intensity correlation function of light emitted by semiconductor quantum dots at 1300 nm. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1077-260X |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
430 |
|
Permanent link to this record |
|
|
|
|
Author |
Shytov, A. V.; Levitov, L. S.; Beenakker, C. W. J. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Electromechanical noise in a diffusive conductor |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
|
Year |
2002 |
Publication |
Phys. Rev. Lett. |
Abbreviated Journal |
Phys. Rev. Lett. |
|
|
Volume |
88 |
Issue |
22 |
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. The root-mean-squared momentum transfer per scattering event in a disordered metal (of dimension L greater than the mean free path l and screening length xi) is found to be reduced below the Fermi momentum by a factor of order l/L for shear fluctuations and (xi/L)^2 for pressure fluctuations. The excitation of an elastic bending mode by the shear fluctuations is estimated to fall within current experimental sensitivity for a nanomechanical oscillator. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0031-9007 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
RPLAB @ s @ |
Serial |
433 |
|
Permanent link to this record |
|
|
|
|
Author |
Gol'tsman, G. N.; Loudkov, D. N. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Terahertz superconducting hot-electron bolometer mixers and their application in radio astronomy |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
|
Year |
2003 |
Publication |
Radiophys. Quant. Electron. |
Abbreviated Journal |
|
|
|
Volume |
46 |
Issue |
8/9 |
Pages |
604-617 |
|
|
Keywords |
NbN HEB mixers |
|
|
Abstract |
We review the latest developments, research, and radioastronomy applications of hot-electron bolometer (HEB) mixers operated in the terahertz waveband. The physical principles of operation of terahertz HEB mixers are presented, their manufacturing from ultrathin NbN films, the main HEB-mixer parameters and their measurement techniques are discussed, and practical terahertz radioastronomy projects based on heterodyne receivers with HEB mixers are considered. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0033-8443 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
UDC 537.312.62 |
Approved |
no |
|
|
Call Number |
|
Serial |
472 |
|
Permanent link to this record |
|
|
|
|
Author |
Colombelli, R |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
FIR quantum cascade lasers at λ>20 μm and THz emitters at λ=80 μm |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
|
Year |
2002 |
Publication |
Phys. E: Low-dimensional Systems and Nanostructures |
Abbreviated Journal |
|
|
|
Volume |
13 |
Issue |
2-4 |
Pages |
848-853 |
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1386-9477 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
483 |
|
Permanent link to this record |