Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Aram Zeytunyan"'
Autor:
V. Ara Apkarian, Kevin T. Crampton, Alexander Fast, Steven Yampolsky, Alba Alfonso-Garcia, Mayukh Banik, Dmitry A. Fishman, Eric O. Potma, Aram Zeytunyan, Faezeh Tork Ladani
Publikováno v:
The Journal of Physical Chemistry C. 120:20943-20953
Surface-enhanced coherent anti-Stokes Raman scattering (SECARS) measurements carried out on individual nanosphere dimer nantennas are presented. The ν-domain and t-domain CARS measurements in the few-molecule limit are contrasted as vibrational auto
Publikováno v:
Multiphoton Microscopy in the Biomedical Sciences XVIII.
We developed a module for dual-output, dual-wavelength lasers that facilitates multiphoton imaging and spectroscopy experiments and enables hyperspectral imaging with spectral resolution up to 5 cm−1. High spectral resolution is achieved by employi
Publikováno v:
Frontiers in Optics 2017.
We determine the duration of femtosecond pulses by coupling them into a passive fiber, generating the nanosecond duration nonlinear-dispersive similaritons and recording them by an oscilloscope. This diagnostics has real-time performance.
Publikováno v:
International Journal of Modern Physics: Conference Series. 15:179-183
We present results of numerical studies of the phase compensation in the pulse compression process via the shaping of asymmetric pulses at the system input. In this case, an effective pulse compression is achieved, with a ratio corresponding to the p
Publikováno v:
Journal of Contemporary Physics (Armenian Academy of Sciences). 45:64-69
By means of spectral interferometry we study properties of similaritons formed in a single-mode optical fiber without gain. Nonlinear-spectronic character of such similaritons leads to linearization of their chirp and spectral-temporal similarity, wh
Publikováno v:
Journal of Contemporary Physics (Armenian Academy of Sciences). 43:23-26
Based on the numerical and experimental studies, a nonlinear-spectronic character of similaritons formed in a single-mode optical fiber without gain is demonstrated. It is shown that the combined action of the Kerr-type nonlinearity and normal disper
Autor:
Aghavni Kutuzyan, Hrach Toneyan, Minas Sukiasyan, Levon Mouradian, Garegin Yesayan, Alain Barthélémy, A.H. Grigoryan, Aram Zeytunyan, Ruben Zadoyan
Publikováno v:
Frontiers in Optics 2015.
The nonlinear process of the pulse spectral self-compression in a medium with anomalous dispersion, the spectral analogue of the soliton effect compression, is introduced on the basis of our experimental observation and detailed numerical analysis.
Autor:
Levon, Mouradian, Aram, Zeytunyan, Hrach, Toneyan, Garegin, Yesayan, Ruben, Zadoyan, Louradour, Frédéric, Barthélémy, Alain
Publikováno v:
SIAM Conference on Nonlinear Waves and Nonlinear Coherent Structures
SIAM Conference on Nonlinear Waves and Nonlinear Coherent Structures, Aug 2014, Cambridge, United Kingdom
SIAM Conference on Nonlinear Waves and Nonlinear Coherent Structures, Aug 2014, Cambridge, United Kingdom
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::13779190b76a04c4af1e68f23d2aff53
https://hal.archives-ouvertes.fr/hal-01223699
https://hal.archives-ouvertes.fr/hal-01223699
Publikováno v:
Journal of Contemporary Physics (Armenian Academy of Sciences). 45:169-171
We propose and test experimentally a method, alternative to the autocorrelation technique, for determination of the duration of femtosecond laser pulses. The method is based on generation of nonlinear-dispersive similariton in a passive optical fiber
Autor:
Frédéric Louradour, Levon Mouradian, Ruben Zadoyan, G. Yesayan, Alain Barthélémy, Aram Zeytunyan
Publikováno v:
IEEE International Conference on Advanced Optoelectronics and Lasers
IEEE International Conference on Advanced Optoelectronics and Lasers, Sep 2013, Sudak, Ukraine
IEEE International Conference on Advanced Optoelectronics and Lasers, Sep 2013, Sudak, Ukraine
Applications of broadband nonlinear-dispersive similariton to pulse temporal and spectral compression, femtosecond signal characterization, and CARS spectroscopy are presented, based on our experimental and numerical studies and supported by the conc