Results 51 to 60 of about 110,231 (192)

Single-frequency mid-infrared waveguide laser

Optics Express, 2019
A guided-wave chip laser operating in a single longitudinal mode at 2860 nm is presented. The cavity was set in the Littman-Metcalf configuration to achieve single-frequency operation with a side-mode suppression ratio above 33 dB. The chip laser's 2 MHz linewidth on a 10 ms scale was found to be limited by mechanical fluctuations, but its Lorentzian ...
Philippe Guay, Jérôme Genest, Vincent Michaud-Belleau, Nicolas Bourbeau Hébert, David G. Lancaster   +4 more
openaire   +4 more sources

Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy

, 2017
Infrared spectroscopy is a powerful tool for basic and applied science. The molecular spectral fingerprints in the 3 um to 20 um region provide a means to uniquely identify molecular structure for fundamental spectroscopy, atmospheric chemistry, trace ...
Chiles, Jeff, Cruz, Flavio C., Diddams, Scott A., Fredrick, Connor, Kowligy, Abijith, Maser, Daniel L., Mirin, Richard P., Nader, Nima, Nam, Sae Woo, Shainline, Jeffrey M., Timmers, Henry, Westly, Daron A.   +11 more
core   +2 more sources

Sub-nanosecond, time-resolved, broadband infrared spectroscopy using synchrotron radiation [PDF]

, 2001
A facility for sub-nanosecond time-resolved (pump-probe) infrared spectroscopy has been developed at the National Synchrotron Light Source of Brookhaven National Laboratory.
D. B. Tanner, D. H. Reitze, Doyle O. L., Feenstra B. J., Finkman E., G. L. Carr, Han P. Y., J. D. LaVeigne, Johnson M., Lim J. H., Lobo R. P. S. M., Mihailovic D., Mroczkowski J. A., R. P. S. M. Lobo, Shen W. Z.   +14 more
core   +2 more sources

Characterization of a rapid scan FTIR for ultrafast probing in the mid-IR region [PDF]

, 2016
En col·laboració amb la Universitat Autònoma de Barcelona (UAB) i la Universitat de Barcelona (UB)The properties of materials in the mid-infrared spectral region (3-15 \mu m) is vital for understanding their operation and performance.
Moreno Mencía, David
core   +1 more source

High-power broadband laser source tunable from 3.0 um to 4.4 um based on a femtosecond Yb:fiber oscillator [PDF]

, 2011
We describe a tunable broadband mid-infrared laser source based on difference-frequency mixing of a 100 MHz femtosecond Yb:fiber laser oscillator and a Raman-shifted soliton generated with the same laser. The resulting light is tunable over 3.0 um to 4.4
Adler, Adler, Baltuška, Dudley, Erny, Gambetta, Ilday, Maddaloni, Mitschke, Nugent-Glandorf, Scott A. Diddams, Todd A. Johnson, Tyler W. Neely, Vodopyanov, Winters, Zhou   +15 more
core   +3 more sources

Power-Scaled Mode-Locked Femtosecond Pulses from an All-Polarization-Maintaining Tm-Doped Figure-9 Fiber Laser

Photonics
We demonstrate an all-polarization-maintaining (PM) mode-locked thulium-doped fiber laser operating in the net-normal-dispersion regime based on a figure-9 nonlinear amplifying loop mirror (NALM) configuration.
Mingrui Jiang, Ting Wen, Yuhang Wei, Liang Zhao, Senyu Wang, Jinlong Wan, Hongyu Luo, Jianfeng Li   +7 more
doaj   +1 more source

Wavelength and intensity dependence of multiple forward scattering at above-threshold ionization in mid-infrared strong laser fields

, 2011
The nonperturbative role of multiple forward scattering for Coulomb focusing in mid-infrared laser fields and its dependence on a laser intensity and wavelength are investigated for low-energy photoelectrons at above-threshold ionization.
Ammosov M V, Ammosov M V, Bethe H, Chengpu Liu, Comtois D, Faisal F, Faisal F, Karen Z Hatsagortsyan, Keldysh L, Landau L D, Landau L D, Maharajan C M, Perelomov A M, Perelomov A M, Rudenko A, Yudin G L, Yudin G L   +16 more
core   +2 more sources

Ultrafast laser inscription: perspectives on future integrated applications [PDF]

, 2014
This paper reviews the recent advancements achieved using ultrafast laser inscription (ULI) that highlight the cross-disciplinary potential of the technology.
Ams M., Calmano T., Dugan M., Lancaster D. G., Li C. X., Macdonald J. R., Mary R., Ródenas A., Simon M., Sugioka K., Taccheo S., Thomson R. R., Vazquez R., Wang J.   +13 more
core   +1 more source

Mid-Infrared Fiber Amplification of a DFB Interband Cascade Laser

Photonics
The limited availability of powerful, tunable, and reliable mid-infrared sources has historically prevented their widespread adoption in spectroscopy applications, even if most greenhouse gases’ fundamental absorption lines are found in this region of ...
Louis-Charles Michaud, Tommy Boilard, Réal Vallée, Martin Bernier   +3 more
doaj   +1 more source

Over 20-W Mid-Infrared Picosecond Optical Parametric Oscillator

IEEE Photonics Journal, 2015
We report on a high-average-power mid-infrared picosecond optical parametric oscillator (OPO) synchronously pumped by a Nd:YVO4 mode-locked laser. By use of the MgO-doped periodically poled LiNbO3 as the nonlinear crystal, up to 20.2-W picosecond laser ...
Zhipeng Qin, Guoqiang Xie, Weiyang Ge, Peng Yuan, Liejia Qian   +4 more
doaj   +1 more source