Yazar "8840686700 [Demirbaş, Ümit]" için Elektrik - Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering listeleme

Toplam kayıt 4, listelenen: 1-4

    • 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 ...

    • Cr: Colquiriite Lasers: Current Status and Challenges for Further Progress 

      Demirbaş, Ümit (Progress in Quantum Electronics, 2019)
      Cr: Colquiriite laser materials (Cr:LiCAF, Cr:LiSAF, Cr:LiSGaF) own broad absorption bands in the visible region that allow direct-diode pumping by well-developed low-cost red diodes. Moreover, they possess broad emission ...

    • 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 ...

    • Thermal and population lensing of Yb:YLF at cryogenic temperature 

      Kılınç, Muharrem; Demirbaş, Ümit; Gonzalez-diaz, Juan B.; Thesinga, Jelto; Kellert, Martin; Palmer, Guido; Kaertne, Franz X.; Pergament, Mikhail (2023)
      We present what is, to our knowledge, the first detailed study of thermal and population lensing in cryogenically cooled Yb:YLF. Using a rod-shaped a-cut Yb:YLF crystal, the thermal lens strength is measured as a function ...