Original Research Papers

    [80] A Laser-assisted Cellular Electrophysiology Measurement System.
    A. A. Seymen, E. Özgür, Z. Soran-Erdem. B. Ortaç
    IEEE Photonics Technology Letters, (Accepted) (2021) DOI: 10.1109/LPT.2021.3049348

    [79] Cucurbit[7]uril-Capped Hybrid Conjugated Oligomer-Gold Nanoparticles for Combined Photodynamic-Photothermal Therapy and Cellular Imaging
    M. Özkan, S. E. Hadi, İ. Tunç, Y. Midilli, B. Ortaç, D. Tuncel
    ACS Applied Polymer Materials, (Accepted) (2020) DOI: 10.1021.acsapm.0c00540

    [78] A Systematic Study on Au-capped Si Nanowhiskers for Size-Dependent Improved Biosensing Applications
    İ. Seker, A. Karatutlu, K Golcuk, M. Karakiz, B. Ortaç
    Plasmonics, Vol. 15, (In Production) (2020) DOI: 10.1007/s11468-020-01195-7

    [77] Permanent Tuning of Optical Resonant Modes of Chalcogenide-Coated Microresonators
    E. Hüseyinoğlu, E. Özgür, G. Bakan, B. Ortaç, A. Dana
    Applied Optics 2020 Vol. 59, Issue 16, pp. 4814-4820(2020) DOI: 10.1364/AO.392924

    [76] Demonstration of an All-Fiber Ultra-Low Numerical Aperture Ytterbium-Doped Large Mode Area Fiber in a Master Oscillator Power Amplifier Configuration above 1 kW Power Level
    Y. Midilli, B. Ortaç
    Journal of Lightwave Technology, Vol. 38 , Issue: 7 , April 1, 2020  DOI: 10.1109/JLT.2020.2970213

    [75] Combined method for the fabrication of high-power cladding light stripper using buffered oxide etchant
    E. Y. Yıldırım, A. Karatutlu, E. T. Balk, Y. Midilli, B. Ortaç
    Applied Optics, Vol. 58, Issue 25,pp. 6926-6933(2019)

    [74] Performance Evaluation of Fiber-based Ballistic Composites against Laser Threats
    C. Candan, A. A. Seymen, A. Karatutlu, M. Tiken, Y. Midilli, ,E. Orhan, H. Berberoğlu, B. Ortaç  
    Optics and Lasers in Engineering, Volume 121, October 2019, Pages 54-60

    [73] Double Ring Firing Single Optical Fiber Deflector
    A. A. Seymen, E. U. Şimşek, E. Özgür, B. Ortaç 
    IEEE Photonics Technology Letters, vol.31, Page: 230 (2019)

    [72] A Bean-like Formation of Nanoparticles inside the Carbon Nanotubes: Colloidal Germanium Nanoparticles Implanted throughout Iron-filled CNTs 
    A. Karatutlu, F. S. Boi, R. Wilson, O. Ersoy, B. Ortaç , A. Sapelkin
    Crystal Research & Technology, vol.53, Page: 1800123 (2018)

    [71] Cascaded Raman scattering based high power octave-spanning supercontinuum generation in graded-index multimode fibers
    U. Teğin, B. Ortaç 
    Scientific Reports, vol.8, Page: 12470 (2018)

    [70] Property Enhancement in polypropylene ternary blend nanocomposites via a novel poly(ethyeleneoxide) grafted SEBS toughener-compatibilizer system
    E. Tekay, S. Başkır, N. Nugay, T. Nugay, B. Ortaç , S. Şen
    Polymer International, vol. 67, Page: 1445 (2018)

    [69] Structural, Optical, Electrical and Electrocatalytic Activity Properties of Luminescent Organic Carbon Quantum Dots
    A. Karatutlu, B. Patil, I. Seker, S. Istengir, A. Bolat, O. Yildirim, Y. N. Sevgen, Y. Bakis, B. Ortaç , E. Yilmaz, A. Sapelkin
    ChemistrySelect, vol. 3, Page: 4730 (2018)

    [68] All-fiber all-normal-dispersion femtosecond laser with nonlinear multimodal interference based saturable absorber
    U. Teğin, B. Ortaç 
    Optics Letters, vol. 43, Page: 1611 (2018)

    [67] Integration of glass micropipettes with a 3D printed aligner for microfluidic flow cytometer
    A. Bayram, M. Serhatlioglu, B. Ortaç , S. Demic, C. Elbuken, M. Sen, M. E. Solmaz
    Sensors and Actuators A: Physical, vol.269, Page: 382 (2018)

    [66] Spatiotemporal Instability of Femtosecond Pulses in Graded-Index Multimode Fibers
    U. Teğin, B. Ortaç 
    IEEE Photonics Technology Letters, vol.29, Page: 2195 (2017)

    [65] Sheathless Microflow Cytometry Using Viscoelastic Fluids
    M. Asghari, M. Serhatlıoglu, B. Ortaç , M. E. Solmaz, C. Elbüken
    Scientific Reports, vol.7, Page: 12342 (2017)

    [64] 1018 nm Yb-doped high power fiber laser pumped by broadband pump sources around 915 nm with output power above 100 W
    Y. Midilli, O. E. Efunbajo, B. Şimşek, B. Ortaç 
    Applied Optics, vol.56, Page: 7225 (2017)

    [63] CO2 Laser Polishing of Conical-Shaped Optical Fiber Deflectors
    E. U. Şimşek, B. Şimşek, B. Ortaç 
    Applied Physics B, vol.123, Page: 176 (2017)

    [62] Toxicity of internalized laser generated pure silver nanoparticles to the isolated rat hippocampus cells
    C. Kursungoz, S. T. Taş, M. F. Sargon, Y. Sara, B. Ortaç 
    Toxicology and Industrial Health, vol.33, Page: 555 (2017)

    [61] Generation of ultra-small InN nanocrystals by pulsed laser ablation of suspension in organic solution
    C.Kursungoz, E. Uzcengiz Simsek, R. Tuzaklı, B. Ortaç 
    Applied Physics A, vol.123, Page: 209 (2017)

    [60] CO2 laser polishing of microfluidic channels fabricated by femtosecond laser assisted carving
    M. Serhatlioglu, B. Ortaç , C. Elbuken, N. Biyikli, and M. Solmaz
    Journal of Micromechanics and Microengineering, vol.26, 11 (2016)

    [59] Terahertz Time-Domain Study of Silver Nanoparticles Synthesized by Laser Ablation in Organic Liquid
    C. Koral, B. Ortaç and H. Altan
    IEEE Transactions on Terahertz Science and Technology, vol. 6, 4, Page(s): 525 – 531, (2016)

    [58] Synthesis of blue-shifted luminescent colloidal GaN nanocrystals through femtosecond pulsed laser ablation in organic solution
    A. Demirel, T. Oztas, C. Kursungoz, İ. Yılmaz and B. Ortaç 
    Journal of Nanoparticle Research, vol. 18, 128 (2016)

    [57] Enhancement in c-Si solar cells using 16 nm InN nanoparticles
    F. I. Chowdhury, A. Alnuaimi, S. Alkis, B. Ortaç , S. Aktürk, M. Alevli, N.Dietz, A. K. Okyay and A. Nayfeh
    Materials Research Express, vol. 3, 056202 (2016)

    [56] Synthesis of colloidal 2D/3D MoS2 nanostructures by pulsed laser ablation in an organic liquid environment
    T. Oztas, H. S. Sen, E. Durgun and B. Ortaç
    Journal of Physical Chemistry C, vol. 118, pp. 30120–30126 (2014)

    [55] A near-infrared range photodetector based on indium nitride nanocrystals obtained through laser ablation
    B. Tekcan, S. Alkis, M. Alevli, N. Dietz, B. Ortaç, N. Biyikli and A. K. Okyay
    IEEE Electron Device Letters, vol. 35, pp. 936-938 (2014)

    [54] Enhanced memory effect via quantum confinement in 16 nm InN nanoparticles embedded in ZnO charge trapping layer
    N. El-Atab, F. Cimen, S. Alkis, B. Ortaç, M. Alevli, N. Dietz, A. K. Okyay and A. Nayfeh
    Applied Physics Letters, vol. 104, , pp. 253106-261105-4 (2014)

    [53] Effects of laser ablated silver nanoparticles on lemna minor
    E. Üçüncü, A. D. Özkan, C. Kurşungöz, Z. E. Ülger, T. Tekinay, B. Ortaç and E. Tunca
    Chemosphere, vol. 108, pp. 251-257 (2014)

    [52] Novel one step synthesis of silica nanoparticles from sugarbeet bagasse by laser ablation and effect on growth of fresh water algea culture
    N. O. San, C. Kurşungöz, Y. Tümtaş, Ö. Yaşa, B. Ortaç and T. Tekinay
    Particuology, vol. 17, pp. 29-35 (2014)

    [51] Laser synthesized gold nanoparticles for high sensitive strain gauges
    S. Burzhuev, A. Dana and B. Ortaç
    Sensors & Actuators: A. Physical, vol. 203, pp. 131-136 (2013)

    [50] Photoluminescent electrospun polymeric nanofibers incorporating germanium nanocrystals
    B. Ortaç, F. Kayacı, H. A. Vural, A. E. Deniz and T. Uyar
    Reactive and Functional Polymers, vol. 73, pp. 1262-1267 (2013)

    [49] Bio-Based Polymer Nanocomposites Based on Layered Silicates Having A Reactive and Renewable Intercalant
    Ö. Albayrak, S. Şen, G. Çaylı and B. Ortaç
    Journal of Applied Polymer Science, vol. 130, pp. 2031-2041 (2013)

    [48] Property Enhancement in Unsaturated Polyester Nanocomposites by Using a Reactive Intercalant for Clay Modification
    S. Şen, H. B. Gündem and B. Ortaç
    Journal of Applied Polymer Science, vol. 129, pp. 3247-3254 (2013)

    [47] Plasmonic Enhanced Photodetector Based on Silicon Nanocrystals Obtained Through Laser Ablation
    S. Alkis, F. B. Oruç, B. Ortaç, A. C. Koşger and A. K. Okyay
    Journal of Optics, vol. 14, pp. 125001 (2012)

    [46] Thin film MoS2 nanocrystal based ultraviolet photodetector
    S. Alkis, T. Öztaş, L. E. Aygün, F. Bozkurt, A. K. Okyay and B. Ortaç
    Optics Express, vol. 20, pp. 21815-21820 (2012)

    [45] Generation of InN Nanocrystals in Organic Solution Through Laser Ablation of High Pressure Chemical Vapor Deposition Grown InN Thin Film
    S. Alkis, M. Alevli, S. Burzhuev, H. A. Vural, Ali K. Okyay and B. Ortaç
    Journal of Nanoparticle Research, vol. 14, pp. 1048 (2012)

    [44] Impact of dispersion on pulse dynamics in chirped-pulse fiber lasers
    M. Baumgartl, B. Ortaç, J. Limpert and A. Tünnermann
    Applied Physics B: Lasers and Optics, vol. 107, pp. 263-274 (2012)

    [43] Post-Treatment of Silicon Nanocrystals Produced by Ultra-Short Pulsed Laser Ablation in Liquid: Towards Blue Luminescent Nanocrystal Generation
    S. Alkis, Ali K. Okyay and B. Ortaç
    Journal of Physical Chemistry C, vol. 116, pp. 3432-3436 (2012)

    [42] Encapsulation of Zinc Phthalocyanine Derivative in Self-Assembled Peptide Nanofibers
    R. Garifullin, T. S. Erkal, S. Tekin, B. Ortaç, A. G. Gurek, V. Ahsen, H. G. Yaglioglu, A. Elmali and M. O. Guler
    Journal of Materials Chemistry, vol. 22, pp. 2553-2559 (2012)

    [41] Ultrashort pulse formation and evolution in mode-locked fiber lasers
    M. Baumgartl, B. Ortaç, T. Schreiber, J. Limpert and A. Tünnermann
    Applied Physics B: Lasers and Optics, vol. 104, pp. 523-536 (2011)

    [40] Gold nanoparticle/polymer nanofibrous composites by laser ablation and electrospinning
    A. E. Deniz, H. A. Vural, B. Ortaç and T. Uyar
    Materials Letters, vol. 65, pp. 2941-2943 (2011)

    [39] Electrochemically tunable ultrafast optical response of graphene oxide
    U. Kürüm, O. Ö. Ekiz, H. G. Yağlıoğlu, A. Elmalı, M. Ürel, H. Güner, A. K. Mızrak, B. Ortaç and A. Dana
    Applied Physics Letters, vol. 98, pp. 141103-1-141103-3 (2011)

    [38] High average and peak power femtosecond large pitch photonic crystal fiber laser
    M. Baumgartl, F. Jansen, F. Stutzki, C. Jauregui, B. Ortaç, J. Limpert and A. Tünnermann
    Optics Letters, vol. 36, pp. 244-246 (2011)

    [37] High-energy femtosecond photonic crystal fiber laser
    C. Lecaplain, B. Ortaç, G. Machinet, J. Boullet, M. Baumgartl, T. Schreiber, E. Cormier and A. Hideur
    Optics Letters, vol. 35, pp. 3156-3158 (2010)

    [36] Sub-80 fs dissipative soliton large-mode-area fiber laser
    M. Baumgartl, B. Ortaç, C. Lecaplain, A. Hideur, J. Limpert and A. Tünnermann
    Optics Letters, vol. 35, pp. 2311-2313 (2010)

    [35] Observation of soliton molecules with independently evolving phase in mode-locked fiber laser
    B. Ortaç, A. Zaviyalov, C. K. Nielsen, O. Egorov, R. Iliew, J. Limpert, F. Lederer and A. Tünnermann
    Optics Letters, vol. 35, pp. 1578-1580 (2010)

    [34] Pulse dynamics in a passively mode-locked chirped-pulse fiber laser
    B. Ortaç, M. Plötner, J. Limpert and A. Tünnermann
    Applied Physics B: Lasers and Optics, vol. 99, pp. 79-82 (2010)

    [33] High-energy soliton pulse generation with a passively mode-locked Er/Yb-doped multifilament-core fiber laser
    B. Ortaç, J. Limpert, S. Jetschke, S. Unger, V. Reichel, J. Kirchhof and A. Tünnermann
    Applied Physics B: Lasers and Optics, vol. 98, pp. 27-31 (2010)

    [32] High-energy femtosecond pulses from a dissipative soliton fiber laser
    C. Lecaplain, B. Ortaç and A. Hideur
    Optics Letters, vol. 34, pp. 3731-3733 (2009)

    [31] Approaching microjoule-level pulse energy with mode-locked femtosecond fiber lasers
    B. Ortaç, M. Baumgartl, J. Limpert and A. Tünnermann
    Optics Letters, vol. 34, pp. 1585-1587 (2009)

    [30] Intracavity terahertz generation inside a high-energy ultrafast soliton fiber laser
    G. Matthaus, B. Ortaç, J. Limpert, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti and A. Tünnermann
    Applied Physics Letters, vol. 93, pp. 261105-261105-3 (2008)

    [29] Dissipative solitons in a passively mode-locked Er-doped fiber laser with strong normal dispersion
    A. Cabasse, B. Ortaç, G. Martel, A. Hideur and J. Limpert
    Optics Express, vol. 16, pp. 19322-19329 (2008)

    [28] Passively mode-locked single-polarization microstructure fiber laser
    B. Ortaç, C. Lecaplain, A. Hideur, T. Schreiber, J. Limpert and A. Tünnermann
    Optics Express, vol. 16, pp. 2122-2128 (2008)

    [27] Self-starting passively mode-locked chirped-pulse fiber laser
    B. Ortaç, M. Plötner, J. Limpert and A. Tünnermann
    Optics Express, vol. 15, pp. 16794-16799 (2007)

    [26] Experimental and numerical study of pulse dynamics in positive net-cavity dispersion mode-locked Yb-doped fiber lasers
    B. Ortaç, M. Plötner, T. Schreiber, J. Limpert and A. Tünnermann
    Optics Express, vol. 15, pp. 15595-15602 (2007)

    [25] Linearly polarized ytterbium fiber based on intracore femtosecond-written fiber Bragg gratings
    E. Wikszak, J. Thomas, S. Klingebiel, B. Ortaç, J. Limpert, S. Nolte and A. Tünnermann
    Optics Letters, vol. 32, pp. 2756-2758 (2007)

    [24] High-power all-normal-dispersion femtosecond pulse generation from a Yb-doped large-mode-area microstructure fiber laser
    C. Lecaplain, C. Chédot, A. Hideur, B. Ortaç and J. Limpert
    Optics Letters, vol. 32, pp. 2738-2740 (2007)

    [23] High-energy femtosecond Yb-doped dispersion compensation free fiber laser
    B. Ortaç, O. Schmidt, T. Schreiber, J. Limpert, A. Tünnermann and A. Hideur
    Optics Express, vol. 15, pp. 10725-10732 (2007)

    [22] Spectral beam combining of Yb-doped fiber lasers with high efficiency
    S. Klingebiel, F. Röser, B. Ortaç, J. Limpert and A. Tünnermann
    J. Opt. Soc. Am. B, vol. 24, pp. 1716-1720 (2007)

    [21] 90 W average power 100 μJ energy femtosecond fiber chirped-pulse amplification system
    F. Röser, D. Schimpf, O. Schmidt, B. Ortaç, K. Rademaker, J. Limpert and A. Tünnermann
    Optics Letters, vol. 32, pp. 2230-2232 (2007)

    [20] High-energy femtosecond Yb-doped fiber laser operating in the anomalous dispersion regime
    B. Ortaç, J. Limpert and A. Tünnermann
    Optics Letters, vol. 32, pp. 2149-2151 (2007)

    [19] On the study of pulse evolution in ultra-short pulse mode-locked fiber lasers by numerical simulations
    T. Schreiber, B. Ortaç, J. Limpert and A. Tünnermann
    Optics Express, vol. 15, pp. 8252-8262 (2007)

    [18] On the possibility of observing bound soliton pairs in a wave-breaking-free mode-locked fiber laser
    G. Martel, C. Chédot, V. Reglier, A. Hideur, B. Ortaç and P. Grelu
    Optics Letters, vol. 32, pp. 343-345 (2007)

    [17] Self-similar low-noise femtosecond ytterbium-doped double-clad fiber laser
    B. Ortaç, A. Hideur, C. Chédot, M. Brunel, G. Martel and J. Limpert
    Applied Physics B: Lasers and Optics, vol. 85, pp. 63-67 (2006)

    [16] Erbium fiber laser based on intracore femtosecond-written fiber Bragg grating
    E. Wikszak, J. Thomas, J. Burghoff, B. Ortaç, J. Limpert, S. Nolte, U. Fuchs and A. Tünnermann
    Optics Letters, vol. 31, pp. 2390-2392 (2006)

    [15] Generation of parabolic bound pulses from a Yb-fiber laser
    B. Ortaç, A. Hideur, M. Brunel, C. Chédot, J. Limpert, A. Tünnermann and F. Ö. Ilday
    Optics Express, vol. 14, pp. 6075-6083 (2006)

    [14] Microjoule-level all-polarization-maintaining femtosecond fiber source
    T. Schreiber, C. K. Nielsen, B. Ortaç, J. Limpert and A. Tünnermann
    Optics Letters, vol. 31, pp. 574-576 (2006)

    [13] Self-starting self-similar all-polarization maintaining Yb-doped fiber laser
    C. K. Nielsen, B. Ortaç, T. Schreiber, J. Limpert, R. Hohmuth, W. Richter and A. Tünnermann
    Optics Express, vol. 13, pp. 9346-9351 (2005)

    [12] Highly Fe-doped InGaAs/InP saturable absorber mode-locking of an erbium fiber laser
    J-B. Lecourt, B. Ortaç, M. Guézo, C. Labbé, H. Folliot, S. Loualiche, A. Hideur and G. Martel
    Journal of Nonlinear Optical Physics & Materials, vol. 14, pp. 427-437 (2005)

    [11] 131 W 220 fs fiber laser system
    F. Röser, J. Rothhard, B. Ortaç, A. Liem, O. Schmidt, T. Schreiber, J. Limpert and A. Tünnermann
    Optics Letters, vol. 30, pp. 2754-2756 (2005)

    [10] 2 GHz passive harmonically mode-locked Yb-doped double-clad fiber laser
    B. Ortaç, A. Hideur, G. Martel and M. Brunel
    Applied Physics B: Lasers and Optics, vol. 81, pp. 507-509 (2005)

    [9] Passive harmonic mode locking with a high-power ytterbium-doped double-clad fiber laser
    B. Ortaç, A. Hideur and M. Brunel
    Optics Letters, vol. 29, pp. 1995-1997 (2004)

    [8] Binding widely-separated pulses with a passively mode-locked Yb-doped double-clad fiber laser
    B. Ortaç
    , A. Hideur and M. Brunel
    Applied Physics B: Lasers and Optics, vol. 79, pp. 185-192 (2004)

    [7] Generation of bound states of three ultrashort pulses with a passively mode-locked high-power Yb-doped double-clad fiber laser
    B. Ortaç, A. Hideur, T. Chartier, M. Brunel, Ph. Grelu, H. Leblond and F. Sanchez
    IEEE Photonics Technology Letters, vol. 16, pp. 1274-1276 (2004)

    [6] Dynamics of a vectorial neodymium-doped fiber laser passively Q-switched by a polymer-based saturable absorber
    G. Martel, M. Bennoud, B. Ortaç, T. Chartier, J-M. Nunzi, G. Boudebs and F. Sanchez
    Journal of Modern Optics, vol. 51, pp. 85-95 (2004)

    [5] Characterization of an ytterbium-doped double-clad fiber laser passively mode-locked by nonlinear polarization rotation
    B. Ortaç, A. Hideur, M. Brunel, T. Chartier, M. Salhi, H. Leblond and F. Sanchez
    Applied Physics B: Lasers and Optics, vol. 77, pp. 589-594 (2003)

    [4] Ultra-short bound states generation with a passively mode-locked high-power Yb-doped double-clad fiber laser
    A. Hideur, B. Ortaç, T. Chartier, M. Brunel, H. Leblond and F. Sanchez
    Optics Communications, vol. 225, pp. 71-78 (2003)

    [3] 90 fs stretched-pulse ytterbium-doped double-clad fiber laser
    B. Ortaç, A. Hideur, T. Chartier, M. Brunel, C. Özkul and F. Sanchez
    Optics Letters, vol. 28, pp. 1305-1307 (2003)

    [2] Influence of cavity losses on stimulated Brillouin scattering in a self-pulsing side-pumped ytterbium-doped double-clad fiber laser
    B. Ortaç, A. Hideur, T. Chartier, M. Brunel, G. Martel, M. Salhi and F. Sanchez
    Optics Communications, vol. 215, pp. 389-395 (2003)

    [1] Optical limiting by digital restoration of defocused images
    M. Brunel, B. Ortaç, S. Coëtmellec, D. Lebrun and C. Özkul
    Optics Communications, vol. 208, pp. 25-29 (2002)