Zobrazeno 1 - 10
of 18
pro vyhledávání: '"E. M. Telles"'
Publikováno v:
Journal de Physique IV (Proceedings). 125:885-888
A high-resolution external laser photoacoustic spectrometer has been developed for trace gas detection with absorption transitions in coincidence with CO 2 laser emission lines (9,2-10,9 μm: 920-1086 cm - 1 ). The CO 2 laser operates in 90 CW lines
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d7b9835ddcc367822c410feaba1f81c
https://doi.org/10.1051/jp4:2005125205
https://doi.org/10.1051/jp4:2005125205
Publikováno v:
Applied Physics B. 72:815-818
A significantly improved far-infrared laser has been used to generate optically pumped laser emissions from 26 to 150 μm for CD3OH. Using an X–V-pumping geometry, several new laser emissions have been found for CD3OH. In addition, an increase in p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::386c3063bdb132fea00abc58e9562d11
https://doi.org/10.1007/s003400100523
https://doi.org/10.1007/s003400100523
Publikováno v:
International Journal of Infrared and Millimeter Waves. 22:521-530
We investigated the behavior of infrared (IR) absorption laser transitions of methanol isotopes in the presence of an uniform electric field, in order to determine Doppler-free spectroscopic data such as homogeneous linewidth and saturation parameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::546719def61f50ea11d6a5654392efe3
https://doi.org/10.1023/a:1010608718155
https://doi.org/10.1023/a:1010608718155
Publikováno v:
International Journal of Infrared and Millimeter Waves. 22:757-772
In this work we present a simple technique for laser frequency stabilization, based on Digital signal processing. The technique is used to stabilize a waveguide CO2 laser of wide tunability by using three kinds of reference signals: the CO2 laser oup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c4de1cbfba4805fd843fc63fb1c8dc4
https://doi.org/10.1023/a:1010606012220
https://doi.org/10.1023/a:1010606012220
Publikováno v:
IEEE Journal of Quantum Electronics. 31:754-757
In this work, we report the frequency measurements of optically pumped far-infrared (FIR) laser lines. We use the heterodyne technique of mixing FIR laser radiation and microwave radiation on a metal-insulator-metal (MIM) point contact tunnel diode,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60b42dd8812c1e66b95fa3f0e9c07896
https://doi.org/10.1109/3.371953
https://doi.org/10.1109/3.371953
Autor:
Giorgio Carelli, E. M. Telles, J.C.S. Moraes, A. Scalabrin, N. Ioli, A. Moretti, Daniel Pereira, Franco Strumia
Publikováno v:
IEEE Journal of Quantum Electronics. 30:2946-2949
Fourier transform and IR optoacoustic absorption data of /sup 13/CD/sub 3/OH were used to search for new FIR laser lines. We have used a waveguide CO/sub 2/ laser of 300 MHz tunability as the optical pumping source. We report the observation and char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3d82ba8fae1a89f9044914cb19ea645
https://doi.org/10.1109/3.362712
https://doi.org/10.1109/3.362712
Autor:
Franco Strumia, A. Moretti, C. A. Massa, D. Pereira, A. Scalabrin, Giorgio Carelli, E. M. Telles, João Carlos Silos Moraes
Publikováno v:
International Journal of Infrared and Millimeter Waves. 15:1-44
The technique of optical pumping in polar molecules is the most efficient for Far-Infrared (FIR) laser generation, providing also a versatile and powerful tool for molecular spectroscopy in this spectral region. Methanol (CH[sub 3]OH) and its isotopi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44fd924c88d43a18000548ebfcb404bc
https://doi.org/10.1007/bf02265874
https://doi.org/10.1007/bf02265874
Autor:
Franco Strumia, Daniel Pereira, João Carlos Silos Moraes, E. M. Telles, A. Scalabrin, A. Moretti
Publikováno v:
Applied Physics B Photophysics and Laser Chemistry. 52:36-41
In this work we report new FIR laser lines from CD3OD optically pumped by a CO2 waveguide laser. The wide tunability of this laser (290 MHz) makes it possible to pump absorption lines with large frequency offset relative to the CO2 laser line center,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c09dd9e1c0b63d7485e4393449ae59f
https://doi.org/10.1007/bf00405684
https://doi.org/10.1007/bf00405684
Autor:
A. Scalabrin, E. M. Telles, A. Moretti, Daniel Pereira, João Carlos Silos Moraes, Franco Strumia
Publikováno v:
Infrared Physics. 31:415-423
Saturation effects in FIR laser active molecules were observed by using a Doppler-free optoacoustic spectrometer. 13CH30H and CD3OH were firstly used to calibrate the optoacoustic spectrometer. Some new infrared transitions could be observed. By usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6b17e791734e521a5f3a8b3da5128d2
https://doi.org/10.1016/0020-0891(91)90018-b
https://doi.org/10.1016/0020-0891(91)90018-b
Publikováno v:
IEEE Journal of Quantum Electronics. 35:1613-1615
In this paper, we report new optically pumped far-infrared (FIR) laser lines from the in-plane CD/sub 3/-rocking and asymmetric CD/sub 3/ deformation absorption vibrational bands of /sup 13/CD/sub 3/OD. A waveguide CO/sub 2/ laser of wide tunability
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::126afb8895c677fcf5fa8caecf06a5f6
https://doi.org/10.1109/3.798083
https://doi.org/10.1109/3.798083