|
Records |
Links |
|
Author |
Rasulova, G. K.; Pentin, I. V.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Terahertz emission from a weakly-coupled GaAs/AlGaAs superlattice biased into three different modes of current self-oscillations |
Type |
Journal Article |
|
Year |
2019 |
Publication |
AIP Advances |
Abbreviated Journal |
AIP Advances |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
9 |
Issue |
10 |
Pages |
105220 |
|
|
Keywords |
GaAs/AlGaAs superlattice, SL, NbN HEB |
|
|
Abstract |
Radio-frequency modulated terahertz (THz) emission power from weakly-coupled GaAs/AlGaAs superlattice (SL) has been increased by parallel connection of several SL mesas. Each SL mesa is a self-oscillator with its own oscillation frequency and mode. In coupled non-identical SL mesas biased at different voltages within the hysteresis loop the chaotic, quasiperiodic and frequency-locked modes of self-oscillations of current arise. THz emission was detected when three connected in parallel SL mesas were biased into the frequency-locked and quasiperiodic modes of self-oscillations of current, while in the chaotic mode of those it falls to the noise level. |
|
|
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 |
2158-3226 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1274 |
|
Permanent link to this record |
|
|
|
|
Author |
Tiulina, V.; Iomdina, E.; Goltsman, G.; Seliverstov, S.; Sianosyan, A.; Teplyakova, K.; Rusova, A.; Zaitsev, S.; Zernii, E.; Senin, I. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
UVB promotes the initiation of uveitic inflammatory and changes in thehydration of the cornea in vivo |
Type |
Miscellaneous |
|
Year |
2019 |
Publication |
FEBS Open Bio |
Abbreviated Journal |
FEBS Open Bio |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
9 |
Issue |
S1 |
Pages |
79 |
|
|
Keywords |
medicine; scheimpflug imaging; UVB; confocal microscopy; cornea; optical coherent tomography; rabbit eyes; terahertz radiation |
|
|
Abstract |
Recently, active research has been conducted in the field of terahertz (THz) scanning of human tissues for noninvasive determination of their hydration level, which haves hown high diagnostic efficiency of this technology in various pathological conditions. Recently, we have developed a laboratory model of the facility for monitoring the state of the water balance of the cornea using THz scanning in vivo, which opens up the possibility of applying this approach in ophthalmology. The aim of the work wasto compare the results of the THz scan of the cornea with its clinical changes using the example of an experimental model of the UV induced keratouveitis. Anexperimental study, which included a comprehensive assessment of clinical changes in the cornea of rabbits during keratouveitis induction, revealed a decrease in the stability of the tear film, pathological changes in the corneal epithelium and stroma, as well as its anatomical and optical parameters. Comparison of data obtained in the THz scan of the cornea with tears production, optical coherence tomography and confocal microscopy showed their consistency in all observation periods, which allows us to conclude that the developed laboratory setup works and the feasibility of further research to promote the corneal hydration evaluation technology in clinical practice. Acknowledgements: Research was funded by the RSF, grant number 161500255. |
|
|
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 |
2211-5463 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
Poster P-01-040 |
Approved |
no |
|
|
Call Number |
|
Serial |
1276 |
|
Permanent link to this record |
|
|
|
|
Author |
Korneeva, Y. P.; Vodolazov, D. Y.; Semenov, A. V.; Florya, I. N.; Simonov, N.; Baeva, E.; Korneev, A. A.; Goltsman, G. N.; Klapwijk, T. M. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Optical single-photon detection in micrometer-scale NbN bridges |
Type |
Journal Article |
|
Year |
2018 |
Publication |
Phys. Rev. Applied |
Abbreviated Journal |
Phys. Rev. Applied |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
9 |
Issue |
6 |
Pages |
064037 (1 to 13) |
|
|
Keywords |
NbN SSPD, SNSPD |
|
|
Abstract |
We demonstrate experimentally that single-photon detection can be achieved in micrometer-wide NbN bridges, with widths ranging from 0.53 to 5.15 μm and for photon wavelengths of 408 to 1550 nm. The microbridges are biased with a dc current close to the experimental critical current, which is estimated to be about 50% of the theoretically expected depairing current. These results offer an alternative to the standard superconducting single-photon detectors, based on nanometer-scale nanowires implemented in a long meandering structure. The results are consistent with improved theoretical modeling based on the theory of nonequilibrium superconductivity, including the vortex-assisted mechanism of initial dissipation. |
|
|
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 |
2331-7019 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1303 |
|
Permanent link to this record |
|
|
|
|
Author |
Antipov, S. V.; Svechnikov, S. I.; Smirnov, K. V.; Vakhtomin, Y. B.; Finkel, M. I.; Goltsman, G. N.; Gershenzon, E. M. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Noise temperature of quasioptical NbN hot electron bolometer mixers at 900 GHz |
Type |
Journal Article |
|
Year |
2001 |
Publication |
Physics of Vibrations |
Abbreviated Journal |
Physics of Vibrations |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
9 |
Issue |
4 |
Pages |
242-245 |
|
|
Keywords |
NbN HEB mixers |
|
|
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 |
1069-1227 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1550 |
|
Permanent link to this record |
|
|
|
|
Author |
Svechnikov, S. I.; Antipov, S. V.; Vakhtomin, Y. B.; Goltsman, G. N.; Gershenzon, E. M.; Cherednichenko, S. I.; Kroug, M.; Kollberg, E. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Conversion and noise bandwidths of terahertz NbN hot-electron bolometer mixers |
Type |
Journal Article |
|
Year |
2001 |
Publication |
Physics of Vibrations |
Abbreviated Journal |
Physics of Vibrations |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
9 |
Issue |
3 |
Pages |
205-210 |
|
|
Keywords |
NbN HEB mixers |
|
|
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 |
1069-1227 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1551 |
|
Permanent link to this record |
|
|
|
|
Author |
Pyatkov, F.; Khasminskaya, S.; Kovalyuk, V.; Hennrich, F.; Kappes, M. M.; Goltsman, G. N.; Pernice, W. H. P.; Krupke, R. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers |
Type |
Journal Article |
|
Year |
2017 |
Publication |
Beilstein J. Nanotechnol. |
Abbreviated Journal |
Beilstein J. Nanotechnol. |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
8 |
Issue |
|
Pages |
38-44 |
|
|
Keywords |
carbon nanotubes; CNT; infrared; integrated optics devices; nanomaterials |
|
|
Abstract |
Carbon nanotubes (CNTs) have recently been integrated into optical waveguides and operated as electrically-driven light emitters under constant electrical bias. Such devices are of interest for the conversion of fast electrical signals into optical ones within a nanophotonic circuit. Here, we demonstrate that waveguide-integrated single-walled CNTs are promising high-speed transducers for light-pulse generation in the gigahertz range. Using a scalable fabrication approach we realize hybrid CNT-based nanophotonic devices, which generate optical pulse trains in the range from 200 kHz to 2 GHz with decay times below 80 ps. Our results illustrate the potential of CNTs for hybrid optoelectronic systems and nanoscale on-chip light sources. |
|
|
Address |
Department of Materials and Earth Sciences, Technische Universitat Darmstadt, Darmstadt 64287, Germany |
|
|
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 |
2190-4286 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:28144563; PMCID:PMC5238692 |
Approved |
no |
|
|
Call Number |
RPLAB @ kovalyuk @ |
Serial |
1109 |
|
Permanent link to this record |
|
|
|
|
Author |
Vorobyov, V. V.; Kazakov, A. Y.; Soshenko, V. V.; Korneev, A. A.; Shalaginov, M. Y.; Bolshedvorskii, S. V.; Sorokin, V. N.; Divochiy, A. V.; Vakhtomin, Y. B.; Smirnov, K. V.; Voronov, B. M.; Shalaev, V. M.; Akimov, A. V.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Superconducting detector for visible and near-infrared quantum emitters [Invited] |
Type |
Journal Article |
|
Year |
2017 |
Publication |
Opt. Mater. Express |
Abbreviated Journal |
Opt. Mater. Express |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
7 |
Issue |
2 |
Pages |
513-526 |
|
|
Keywords |
SSPD, SNSPD |
|
|
Abstract |
Further development of quantum emitter based communication and sensing applications intrinsically depends on the availability of robust single-photon detectors. Here, we demonstrate a new generation of superconducting single-photon detectors specifically optimized for the 500–1100 nm wavelength range, which overlaps with the emission spectrum of many interesting solid-state atom-like systems, such as nitrogen-vacancy and silicon-vacancy centers in diamond. The fabricated detectors have a wide dynamic range (up to 350 million counts per second), low dark count rate (down to 0.1 counts per second), excellent jitter (62 ps), and the possibility of on-chip integration with a quantum emitter. In addition to performance characterization, we tested the detectors in real experimental conditions involving nanodiamond nitrogen-vacancy emitters enhanced by a hyperbolic metamaterial. |
|
|
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 |
2159-3930 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1234 |
|
Permanent link to this record |
|
|
|
|
Author |
Gershenzon, E. M.; Goltsman, G. N.; Ptitsyna, N. G. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Investigation of excited donor states in GaAs |
Type |
Journal Article |
|
Year |
1974 |
Publication |
Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
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 |
Gershenzon, E. M.; Goltsman, G. N. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Zeeman effect in excited-states of donors in germanium |
Type |
Journal Article |
|
Year |
1972 |
Publication |
Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
6 |
Issue |
3 |
Pages |
509 |
|
|
Keywords |
Ge, donors, Zeeman effect |
|
|
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 |
1737 |
|
Permanent link to this record |
|
|
|
|
Author |
Korneev, A.; Finkel, M.; Maslennikov, S.; Korneeva, Yu.; Florya, I.; Tarkhov, M.; Elezov, M.; Ryabchun, S.; Tretyakov, I.; Isupova, A.; Voronov, B.; Goltsman, G. |
|
|
Title |
Superconducting NbN terahertz detectors and infrared photon counters |
Type |
Journal Article |
|
Year |
2010 |
Publication |
Вестник НГУ. Серия: физ. |
Abbreviated Journal |
Вестник НГУ. Серия: физ. |
|
|
Volume ![sorted by Volume (numeric) field, descending order (down)](img/sort_desc.gif) |
5 |
Issue |
4 |
Pages |
68-72 |
|
|
Keywords |
HEB; HEB mixer |
|
|
Abstract |
We present our recent achievements in the development of sensitive and ultrafast thin-film superconducting sensors: hot-electron bolometers (HEB), HEB-mixers for terahertz range and infrared single-photon counters. These sensors have already demonstrated a performance that makes them devices-of-choice for many terahertz and optical applications. Keywords: Hot electron bolometer mixers, infrared single-photon detectors, superconducting device fabrication, superconducting NbN films. |
|
|
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 |
1818-7994 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
УДК 538.9 |
Approved |
no |
|
|
Call Number |
RPLAB @ gujma @ |
Serial |
708 |
|
Permanent link to this record |