Yazar "Kurum, Ulaş" için listeleme
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Excited state dynamics of nanocrystalline VO2 with white light continuum time resolved spectroscopy
Kurum, Ulaş; Yağlıoğlu, H. Gül; Küçüköz, Betül; Öksüzoğlu, Ramis Mustafa; Yıldırım, Mustafa; Yagci, A. Murat; Elmali, Ayhan (Elsevier Science BV, 2014)In an attempt to use ultrafast pump probe spectroscopy technique with white light continuum to reveal wavelength dependent dynamics of VO2, bandgap needs to be opened. Therefore, nanostructured amorphous and crystalline ... -
Modifying ultrafast optical response of sputtered VOX nanostructures in a broad spectral range by altering post annealing atmosphere
Kurum, Ulaş; Yağlıoğlu, H. Gül; Küçüköz, Betül; Öksüzoğlu, Ramis Mustafa; Yıldırım, Mustafa; Yagci, A. M.; Elmali, Ayhan (IOP Publishing LTD, 2015)Nanostructured VOX thin films were grown in a dc magnetron sputter system under two different Ar:O-2 gas flow ratios. The films were annealed under vacuum and various ratios of O-2/N-2 atmospheres. The insulator-to-metal ... -
The third order nonlinear optical characteristics of amorphous vanadium oxide thin film
Kurum, Ulaş; Öksüzoğlu, Ramis Mustafa; Yuksek, M.; Yağlıoğlu, H. G.; Çınar, H.; Elmali, Ayhan (Springer, 2011)We studied the nonlinear absorptive characteristics (saturation intensity threshold and effective nonlinear absorption coefficients) and nonlinear refraction in a 50-nm-thick VO (x) thin amorphous film prepared by pulsed ...
