Records |
Author |
Gershenzon, E. M.; Goltsman, G. N.; Orlov, L. |
Title ![sorted by Title field, descending order (down)](img/sort_desc.gif) |
Investigation of population and ionization of donor excited states in Ge |
Type |
Conference Article |
Year |
1976 |
Publication |
Physics of Semiconductors |
Abbreviated Journal |
Physics of Semiconductors |
Volume |
|
Issue |
|
Pages |
631-634 |
Keywords |
Ge, donor excited states |
Abstract |
|
Address |
Amsterdam |
Corporate Author |
|
Thesis |
|
Publisher |
North-Holland Publishing Co. |
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 |
1732 |
Permanent link to this record |
|
|
|
Author |
Gershenzon, E. M.; Gol'tsman, G. N.; Ptitsina, N. G. |
Title ![sorted by Title field, descending order (down)](img/sort_desc.gif) |
Investigation of free excitons in Ge and their condensation at submillimeter wavelengths |
Type |
Journal Article |
Year |
1976 |
Publication |
Sov. Phys. JETP |
Abbreviated Journal |
Sov. Phys. JETP |
Volume |
43 |
Issue |
1 |
Pages |
116-122 |
Keywords |
Ge, free excitons |
Abstract |
Results are presented of an investigation of free excitons in Ge in the submillimeter wavelength range for low as well as for high excitation levels when interaction between the excitons becomes important. The free-exciton energy spectrum is discussed. It is shown that the drop radii and their concentrations can be determined by measuring the temperature dependence of the free-exciton concentration. A section of the phase diagram is obtained in the 0.5-2.8 K temperature range for the free excitons+condensate system. |
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 |
1731 |
Permanent link to this record |
|
|
|
Author |
Gershenzon, E. M.; Goltsman, G. N.; Ptitsyna, N. G. |
Title ![sorted by Title field, descending order (down)](img/sort_desc.gif) |
Investigation of excited donor states in GaAs |
Type |
Journal Article |
Year |
1974 |
Publication |
Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
Volume |
7 |
Issue |
10 |
Pages |
1248-1250 |
Keywords |
GaAs, excited donor states |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
Amer Inst Physics 1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa |
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 |
1733 |
Permanent link to this record |
|
|
|
Author |
Ekström, H.; Karasik, B.; Kollberg, E.; Yngvesson, K. S. |
Title ![sorted by Title field, descending order (down)](img/sort_desc.gif) |
Investigation of a superconducting hot electron mixer |
Type |
Conference Article |
Year |
1994 |
Publication |
Proc. 5th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 5th Int. Symp. Space Terahertz Technol. |
Volume |
|
Issue |
|
Pages |
169-188 |
Keywords |
HEB mixers |
Abstract |
Mixing at 20 GHz in niobium superconducting thin film strips in the resistive state is studied. Experiments give evidence that electron-heating is the main cause of the non linear phenomena. The requirements on the mode of operation and on the film parameters for small conversion loss and the possibility of conversion gain are discussed. Measurements indicate a minimum intrinsic conversion loss around 1 dB with a sharp drop for the lowest voltage bias-points, and a DSB mixer noise temperature between 100 and 450 K at 20 GHz. The device output noise temperature at the mixer operating point can be as low as 30-50 K. A simple theory is presented, which is based on the assumption that the small signal resistance is linearly dependent on power. This type of mixer is considered very promising for use in low-noise heterodyne receivers at THz frequencies. |
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 |
1642 |
Permanent link to this record |
|
|
|
Author |
Elezov, M. S.; Semenov, A. V.; An, P. P.; Tarkhov, M. A.; Goltsman, G. N.; Kardakova, A. I.; Kazakov, A. Y. |
Title ![sorted by Title field, descending order (down)](img/sort_desc.gif) |
Investigating the detection regimes of a superconducting single-photon detector |
Type |
Journal Article |
Year |
2013 |
Publication |
J. Opt. Technol. |
Abbreviated Journal |
J. Opt. Technol. |
Volume |
80 |
Issue |
7 |
Pages |
435 |
Keywords |
SSPD, quantum efficiency |
Abstract |
The detection regimes of a superconducting single-photon detector have been investigated. A technique is proposed for determining the regions in which “pure regimes” predominate. Based on experimental data, the dependences of the internal quantum efficiency on the bias current are determined in the one-, two-, and three-photon detection regimes. |
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 |
1070-9762 |
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes |
|
Approved |
no |
Call Number |
|
Serial |
1172 |
Permanent link to this record |