Yazar "239781 [Okuyucu, Serdar]" için Elektrik - Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering listeleme
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Broadly tunable two-color lasing of Cr:LiCAF with on-surface and off-surface optical axis birefringent filters: performance comparison
Ertürk, Zekican; Okuyucu, Serdar; Kılınç, Muharrem; Öztürk, Yusuf; Pergament, Mikhail; Kärtner, Franz X.; Demirbaş, Ümit (Applied Optics, 2022)We studied the two-color lasing performance of a Cr:LiCAF laser using crystal quartz on-surface and off-surface optical axis birefringent filters (BRFs). Four different on-surface optical axis BRFs with thicknesses of 2 ... -
Passively Q-switched Cr:LiCAF laser with a saturable Bragg reflector
Okuyucu, Serdar; Öztürk, Yusuf; Demirbaş, Ümit (Applied Physics B: Lasers and Optics, 2021)We present a low-cost multimode diode pumped passively Q-switched Cr:LiCAF laser operating near 800 nm. AlGaAs-based saturable Bragg reflectors (SBRs) were used for passive Q-switching. The system is experimentally ... -
Statistical approaches for the analysis of dependency among neurons under noise
Gençağa, Deniz; Şengül Ayan, Sevgi; Farnoudkia, Hajar; Okuyucu, Serdar (MDPI, 2020)Neuronal noise is a major factor affecting the communication between coupled neurons. In this work, we propose a statistical toolset to infer the coupling between two neurons under noise. We estimate these statistical ... -
Temperature Dependence of Emission Cross Section and Fluorescence Lifetime of Cr:Colquiriites in 78-618 K Range
Okuyucu, Serdar; Demirbaş, Ümit; Tanaka, Hiroki; Thesinga, Jelto; Öztürk, Yusuf; Kärtner, Franz X.; Pergament, Mikhail (Optica Advanced Photonics Congress 2022, 2022)We have measured the temperature dependence of fluorescence lifetime and emission cross section in Cr:LiCAF, Cr:LiSGaF and Cr:LiSAF in the 78-618 K range. Our results confirm their potential as high-power ultrafast sources ... -
Temperature dependence of the emission cross-section and fluorescence lifetime in Cr:LiCAF, Cr:LiSAF, and Cr:LiSGaF between 78 K and 618 K
Okuyucu, Serdar; Thesinga, Jelto; Tanaka, Hiroki; Öztürk, Yusuf; Kärtner, Franz X.; Pergament, Mikhail; Demirbaş, Ümit (2023)Cr:Colquiriites (Cr:LiCAF, Cr:LiSAF, and Cr:LiSGaF) are well-known for their broad emission bands in the near-infrared region. Unfortunately, due to their relatively weak thermomechanical strength, average powers from ...