| Records |
| Author |
Thiébeau, C.; Courtois, D.; Delahaigue, A.; Corre, H.; Mouanda, J. C.; Fayt, A. |
| Title |
Dual-beam laser heterodyne spectrometer: Ethylene absorption spectrum in the 10 μm range |
Type |
Journal Article |
| Year |
1988 |
Publication |
Applied Physics B: Photophysics and Laser Chemistry |
Abbreviated Journal |
Appl. Phys. B |
| Volume |
47 |
Issue |
4 |
Pages |
313-318 |
| Keywords |
infrared applications |
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Edition |
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| ISSN |
0721-7269 |
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no |
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Serial |
493 |
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| Author |
Verevkin, A.; Slysz, W.; Pearlman, A.; Zhang, J.; Sobolewski, R.; Okunev, O.; Korneev, A.; Kouminov, P.; Smirnov, K.; Chulkova, G.; Gol’tsman, G. N.; Currie, M. |
| Title |
Real-time GHz-rate counting of infrared photons using nanostructured NbN superconducting detectors |
Type |
Conference Article |
| Year |
2003 |
Publication |
CLEO/QELS |
Abbreviated Journal |
CLEO/QELS |
| Volume |
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Issue |
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Pages |
CThM8 |
| Keywords |
NbN SSPD; SNSPD; Infrared; Quantum detectors; Detectors; Photon counting; Quantum communications; Quantum cryptography; Single photon detectors; Superconductors |
| Abstract |
We demonstrate that our ultrathin, nanometer-width NbN superconducting single-photon detectors are capable of above 1-GHz-frequency, real-time counting of near-infrared photons. The measured system jitter of the detector is below 15 ps. |
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| Publisher |
Optical Society of America |
Place of Publication |
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Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference |
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no |
| Call Number |
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Serial |
1517 |
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| Author |
Parrott, Edward P. J.; Zeitler, J. Axel; Fris<cc><152>c<cc><152>ic<cc><81>, Tomislav; Pepper, Michael; Jones, William; Day, Graeme M.; Gladden, Lynn F. |
| Title |
Testing the sensitivity of terahertz spectroscopy to changes in molecular and supramolecular structure: a study of structurally similar cocrystals |
Type |
Journal Article |
| Year |
2009 |
Publication |
Crystal Growth & Design |
Abbreviated Journal |
Crystal Growth & Design |
| Volume |
9 |
Issue |
3 |
Pages |
1452-1460 |
| Keywords |
supramolecular recognition, infrared, terahertz, IR, THz, TDS |
| Abstract |
Terahertz time-domain-spectroscopy (THz-TDS) has emerged as a versatile spectroscopic technique, and an alternative to powder X-ray diffraction in the characterization of molecular crystals. We tested the ability of terahertz spectroscopy to distinguish between chiral and racemic hydrogen-bonded cocrystals that are similar in molecular and supramolecular structure. Terahertz spectroscopy readily distinguished between the isostructural cocrystals of theophylline with chiral and racemic forms of malic acid which are almost identical in molecular structure and supramolecular architecture. Similarly, the cocrystals of theophylline with chiral and racemic forms of tartaric acid, which are similar at the molecular level but dissimilar in crystal packing, were distinguished unequivocally. The investigation of the same cocrystals using X-ray powder diffraction and Raman spectroscopy suggested that THz-TDS is comparable in sensitivity to diffraction methods and more sensitive than Raman spectroscopy to changes in cocrystal architecture. The differences in spectra acquired by THz-TDS could be further enhanced by cooling the samples to 109 K. |
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Edition |
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| ISSN |
1528-7483 |
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no |
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567 |
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| Author |
Финкель, М. И. |
| Title |
Терагерцовые смесители на эффекте электронного разогрева в ультратонких плёнках NbN и NbTiN |
Type |
Manuscript |
| Year |
2006 |
Publication |
М. МПГУ |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
HEB, detector, mixer, terahertz, THz, infrared, IR, direct detection effect, conversion bandwidth, conversion loss |
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Thesis |
Ph.D. thesis |
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no |
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Serial |
597 |
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| Author |
Kawakami, A; Saito, S.; Hyodo, M. |
| Title |
Fabrication of nano-antennas for superconducting Infrared detectors |
Type |
Journal Article |
| Year |
2011 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
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| Volume |
21 |
Issue |
3 |
Pages |
632-635 |
| Keywords |
optical antennas, NbN/MgO/NbN/TiN/Al HEB, dipole antennas, IR, infrared |
| Abstract |
To improve the response performance of superconducting infrared detectors, we have developed a fabrication process for nano-antennas. A nano-antenna consists of a dipole antenna, and a superconducting thin film strip placed in the antenna's center. By measuring the transition temperature of the superconducting strips, we confirmed that their superconductivity maintained a good condition after the nano-antenna fabrication process. We also evaluated nano-antenna characteristics using Fourier transform infrared spectroscopy. The evaluated antenna length and width were respectively set at around 2400 nm and 400 nm, and the antennas were placed at intervals of several micrometers around the area of 1 mm2 . In an evaluation of spectral transmission characteristics, clear absorption caused by antenna effects was observed at around 1400 cm-1. High polarization dependencies were also observed. |
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no |
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Serial |
761 |
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