Search academic texts

Information × Registration Number 0220U102373, 0119U102677 , R & D reports Title Investigation of amplitude and phase characteristics of femtosecond pulses by frequency-resolved optical gating popup.stage_title Head Mamuta Oleksandr D., Кандидат технічних наук Registration Date 12-03-2020 Organization Institute of physics of NAS of Ukraine popup.description2  In the first phase of the project, an experimental facility was created to implement the frequency division optical gating (FROG) method. Software for remote control of an experimental setup in a graphical LabView graphical environment has been developed and tested. A series of experimental studies of the characteristics of ultra-short pulses (USP) on the basis of "Femtosecond laser" at the Institute Physics of NAS of Ukraine was conducted. As a result of the analysis of the time and phase profile of the USP, the duration of the femtosecond pulse of 152 fs and the spectral width of 9.0 nm were determined by the HRMS method. The results obtained are more accurate than the results obtained in the control measurement of the autocorrelator, namely: 160 fs and 9.0 nm. The scientific significance of the study is to implement an approach that will provide information on the amplitude, phase, and time characteristics of USP, and take into account the influence of optical elements on the change of phase and time characteristics of pulses when conducting studies in the femtosecond time range. The practical importance of the work is due to the creation of a unique experimental installation, automated (with the possibility of remote control) using software and hardware in the graphical environment LabView, which will complement the instrument base "Laser femtosecond complex" at the Institute Physics of NAS of Ukraine. The social focus of the research is the possibility of implementing a proposed and proven approach that will significantly enhance the possibilities of domestic experiments related to the use of USP. Product Description popup.authors Khodko Alina A Khomenko Vadym V popup.nrat_date 2020-04-01 Close