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1

Synthesis and characterization of diffusion-doped Cr2+:ZnSe and Fe2+:ZnSe

Umit Demirbas, Alphan Sennaroglu, Mehmet Somer

Journal:

Optical Materials

Année:

2006

Langue:

english

Fichier:

PDF, 235 KB

english, 2006

2

Intracavity-pumped Cr2+:ZnSe laser with ultrabroad tuning range between 1880 and 3100 nm

Demirbas, Umit, Sennaroglu, Alphan

Journal:

Année:

2006

Langue:

english

Fichier:

PDF, 73 KB

english, 2006

3

Synthesis, electrochemical and spectroelectrochemical properties of peripherally tetra-imidazole substituted metal free and metallophthalocyanines

Hakkı Türker Akçay, Rıza Bayrak, Ümit Demirbaş, Atıf Koca, Halit Kantekin, Ismail Değirmencioğlu

Journal:

Dyes and Pigments

Année:

2013

Langue:

english

Fichier:

PDF, 1.97 MB

english, 2013

4

Graphene mode-locked femtosecond Alexandrite laser

Cihan, Can, Kocabas, Coskun, Demirbas, Umit, Sennaroglu, Alphan

Journal:

Année:

2018

Langue:

english

Fichier:

PDF, 1.80 MB

english, 2018

5

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

Journal:

Progress in Quantum Electronics

Année:

2019

Langue:

english

Fichier:

PDF, 29.90 MB

english, 2019

6

Continuous-wave broadly tunable Cr2+:ZnSe laser pumped by a thulium fiber laser

Alphan Sennaroglu, Umit Demirbas, Nathalie Vermeulen, Heidi Ottevaere, Hugo Thienpont

Journal:

Optics Communications

Année:

2006

Langue:

english

Fichier:

PDF, 215 KB

english, 2006

7

Analysis of solid-state saturable absorbers with temperature dependent absorption cross-sections

Alphan Sennaroglu, Ahmet Faruk Coskun, Umit Demirbas

Journal:

Optical Materials

Année:

2009

Langue:

english

Fichier:

PDF, 230 KB

english, 2009

8

Concentration dependence of fluorescence and lasing efficiency in Cr2+:ZnSe lasers

Alphan Sennaroglu, Umit Demirbas, Adnan Kurt, Mehmet Somer

Journal:

Optical Materials

Année:

2007

Langue:

english

Fichier:

PDF, 177 KB

english, 2007

9

Luminescent Nd3+ doped silicone–urea copolymers

Umit Demirbas, Adnan Kurt, Alphan Sennaroglu, Emel Yilgör, Iskender Yilgör

Journal:

Année:

2006

Langue:

english

Fichier:

PDF, 245 KB

english, 2006

10

Accurate determination of saturation parameters for Cr4+-doped solid-state saturable absorbers

Sennaroglu, Alphan, Demirbas, Umit, Ozharar, Sarper, Yaman, Fatih

Journal:

Journal of the Optical Society of America B

Année:

2006

Langue:

english

Fichier:

PDF, 520 KB

english, 2006

11

Absorption saturation analysis of Cr^2+:ZnSe and Fe^2+:ZnSe

Cankaya, Huseyin, Demirbas, Umit, Erdamar, Ahmet K., Sennaroglu, Alphan

Journal:

Journal of the Optical Society of America B

Année:

2008

Langue:

english

Fichier:

PDF, 503 KB

english, 2008

12

Comparative investigation of diode pumping for continuous-wave and mode-locked Cr^3+:LiCAF lasers

Demirbas, Umit, Sennaroglu, Alphan, Kärtner, Franz X., Fujimoto, James G.

Journal:

Journal of the Optical Society of America B

Année:

2009

Langue:

english

Fichier:

PDF, 1.07 MB

english, 2009

13

Femtosecond tuning of Cr:colquiriite lasers with AlGaAs-based saturable Bragg reflectors

Demirbas, Umit, Petrich, Gale S., Li, Duo, Sennaroglu, Alphan, Kolodziejski, Leslie A., Kärtner, Franz X., Fujimoto, James G.

Journal:

Journal of the Optical Society of America B

Année:

2011

Langue:

english

Fichier:

PDF, 1.35 MB

english, 2011

14

Multi-photon microscopy with a low-cost and highly efficient Cr:LiCAF laser

Sakadžic, Sava, Demirbas, Umit, Mempel, Thorsten R., Moore, Anna, Ruvinskaya, Svetlana, Boas, David A., Sennaroglu, Alphan, Kaertner, Franz X., Fujimoto, James G.

Journal:

Année:

2008

Langue:

english

Fichier:

PDF, 2.15 MB

english, 2008

15

Low-cost, single-mode diode-pumped Cr:Colquiriite lasers

Demirbas, Umit, Li, Duo, Birge, Jonathan R., Sennaroglu, Alphan, Petrich, Gale S., Kolodziejski, Leslie A., Kaertner, Franz X., Fujimoto, James G.

Journal:

Année:

2009

Langue:

english

Fichier:

PDF, 438 KB

english, 2009

16

Femtosecond Cr:LiSAF and Cr:LiCAF lasers pumped by tapered diode lasers

Demirbas, Umit, Schmalz, Michael, Sumpf, Bernd, Erbert, Götz, Petrich, Gale S., Kolodziejski, Leslie A., Fujimoto, James G., Kärtner, Franz X., Leitenstorfer, Alfred

Journal:

Année:

2011

Langue:

english

Fichier:

PDF, 1.30 MB

english, 2011

17

Diode-pumped, high-average-power femtosecond Cr^3+:LiCAF laser

Demirbas, Umit, Sennaroglu, Alphan, Benedick, Andrew, Siddiqui, Aleem, Kärtner, Franz X., Fujimoto, James G.

Journal:

Année:

2007

Langue:

english

Fichier:

PDF, 263 KB

english, 2007

18

Highly efficient, low-cost femtosecond Cr^3+:LiCAF laser pumped by single-mode diodes

Demirbas, Umit, Sennaroglu, Alphan, Kärtner, Franz X., Fujimoto, James G.

Journal:

Année:

2008

Langue:

english

Fichier:

PDF, 285 KB

english, 2008

19

Generation of 15 nJ pulses from a highly efficient, low-cost multipass-cavity Cr^3+:LiCAF laser

Demirbas, Umit, Sennaroglu, Alphan, Kärtner, Franz X., Fujimoto, James G.

Journal:

Année:

2009

Langue:

english

Fichier:

PDF, 250 KB

english, 2009

20

Low-cost cavity-dumped femtosecond Cr:LiSAF laser producing >100 nJ pulses

Demirbas, Umit, Hong, Kyung-Han, Fujimoto, James G., Sennaroglu, Alphan, Kärtner, Franz X.

Journal:

Année:

2010

Langue:

english

Fichier:

PDF, 275 KB

english, 2010

21

Diode-pumped passively mode-locked GHz femtosecond Cr:LiSAF laser with kW peak power

Demirbas, Umit, Birge, Jonathan R., Petrich, Gale S., Kolodziejski, Leslie A., Sennaroglu, Alphan, Li, Duo, Kärtner, Franz X., Fujimoto, James G.

Journal:

Année:

2010

Langue:

english

Fichier:

PDF, 255 KB

english, 2010

22

Synthesis, photophysical and photochemical properties of novel tetra substituted metal free and metallophthalocyanines bearing triazine units

Demirbaş, Ümit, Bayrak, Rıza, Pişkin, Mehmet, Akçay, Hakkı Türker, Durmuş, Mahmut, Kantekin, Halit

Journal:

Journal of Organometallic Chemistry

Année:

2013

Langue:

english

Fichier:

PDF, 915 KB

english, 2013

23

SPIE Proceedings [SPIE SPIE LASE - San Francisco, California, USA (Saturday 2 February 2013)] Solid State Lasers XXII: Technology and Devices - Self-Q-switched Cr:LiCAF laser near 800 nm

Beyatli, Ersen, Sennaroglu, Alphan, Demirbas, Umit, Clarkson, W. Andrew, Shori, Ramesh

Année:

2013

Langue:

english

Fichier:

PDF, 478 KB

english, 2013

24

SPIE Proceedings [SPIE SPIE Photonics Europe - Brussels, Belgium (Monday 16 April 2012)] Laser Sources and Applications - Femtosecond Cr:Colquiriite lasers pumped by a single tapered diode laser

Demirbas, Umit, Graf, Thomas, Mackenzie, Jacob I., Schmalz, Michael, Sumpf, Bernd, Jelínková, Helena, Powell, John, Erbert, Götz, Petrich, Gale S., Kolodziejski, Leslie A., Fujimoto, James G., Kärtner

Année:

2012

Langue:

english

Fichier:

PDF, 257 KB

english, 2012

25

SPIE Proceedings [SPIE SPIE Photonics Europe - Brussels, Belgium (Monday 16 April 2012)] Laser Sources and Applications - Compact and efficient Cr:LiSAF laser pumped by one low-cost single-spatial-mode diode

Graf, Thomas, Demirbas, Umit, Eggert, Stefan, Mackenzie, Jacob I., Jelínková, Helena, Leitenstorfer, Alfred, Powell, John

Année:

2012

Langue:

english

Fichier:

PDF, 276 KB

english, 2012

26

Modeling and optimization of tapered-diode pumped Cr:LiCAF regenerative amplifiers

Journal:

Optics Communications

Année:

2013

Langue:

english

Fichier:

PDF, 890 KB

english, 2013

27

Novel triazole bearing zinc(II) and magnesium(II) metallo-phthalocyanines: Synthesis, characterization, photophysical and photochemical properties

Akçay, Hakkı Türker, Pişkin, Mehmet, Demirbaş, Ümit, Bayrak, Rıza, Durmuş, Mahmut, Menteşe, Emre, Kantekin, Halit

Journal:

Journal of Organometallic Chemistry

Année:

2013

Langue:

english

Fichier:

PDF, 928 KB

english, 2013

28

Experimental and computational studies on 4-[(3,5-dimethyl-1H-pyrazol-1-yl)methoxy]phthalonitrile and synthesis and spectroscopic characterization of its novel phthalocyanine magnesium(II) and tin(II) metal complexes

Akçay, Hakkı Türker, Bayrak, Rıza, Şahin, Ertan, Karaoğlu, Kaan, Demirbaş, Ümit

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Année:

2013

Langue:

english

Fichier:

PDF, 1.17 MB

english, 2013

29

Intra-cavity frequency-doubled Cr:LiCAF laser with 265mW continuous-wave blue (395–405nm) output

Demirbas, Umit, Uecker, Reinhard, Klimm, Detlef, Sumpf, Bernd, Erbert, Götz

Journal:

Optics Communications

Année:

2014

Langue:

english

Fichier:

PDF, 362 KB

english, 2014

30

The photophysical and photochemical properties of new unmetallated and metallated phthalocyanines bearing four 5-chloroquinolin-8-yloxy substituents on peripheral sites

Nas, Asiye, Demirbaş, Ümit, Pişkin, Mehmet, Durmuş, Mahmut, Kantekin, Halit

Journal:

Journal of Luminescence

Année:

2014

Langue:

english

Fichier:

PDF, 848 KB

english, 2014

31

Gain-Matched Output Couplers for Efficient Kerr-Lens Mode-Locking of Low-Cost and High-Peak Power Cr:LiSAF Lasers

Cihan, Can, Beyatli, Ersen, Canbaz, Ferda, Li-Jin Chen,, Sumpf, Bernd, Erbert, Gotz, Leitenstorfer, Alfred, Kartner, Franz X., Sennaroglu, Alphan, Demirbas, Umit

Journal:

IEEE Journal of Selected Topics in Quantum Electronics

Année:

2015

Langue:

english

Fichier:

PDF, 1.85 MB

english, 2015

32

SPIE Proceedings [SPIE Photonics Europe - Strasbourg, France (Monday 26 April 2004)] Solid State Lasers and Amplifiers - Spectroscopic properties of Tm3+:TeO2-PbF2 glasses in the near infrared

Kabalci, Idris, Ozen, Gonul, Kurt, Adnan, Demirbas, Umit, Sennaroglu, Alphan, Sennaroglu, Alphan, Fujimoto, James G., Pollock, Clifford R.

Année:

2004

Langue:

english

Fichier:

PDF, 549 KB

english, 2004

33

[IEEE LEOS 2009 -22nd Annuall Meeting of the IEEE Lasers and Electro-Optics Society (LEO) - Belek-Antalya, Turkey (2009.10.4-2009.10.8)] 2009 IEEE LEOS Annual Meeting Conference Proceedings - Recent advances in Cr: Colquiriite laser technology

Demirbas, Umit, Sakadzic, Sava, Hong, Kyung-Han, Birge, Jonathan R., Li, Duo, Byun, Hyunil, Fendel, Peter, Petrich, Gale S., Kolodziejski, Leslie A., Boas, David A., Sennaroglu, Alphan, Kartner, Franz

Année:

2009

Langue:

english

Fichier:

PDF, 876 KB

english, 2009

34

Electrochemical and spectroelectrochemical properties of thiadiazole substituted metallo-phthalocyanines

Demirbaş, Ümit, Akyüz, Duygu, Barut, Burak, Bayrak, Rıza, Koca, Atıf, Kantekin, Halit

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Année:

2016

Langue:

english

Fichier:

PDF, 2.21 MB

english, 2016

35

Graphene mode-locked Cr:LiSAF laser at 850 nm

Canbaz, Ferda, Kakenov, Nurbek, Kocabas, Coskun, Demirbas, Umit, Sennaroglu, Alphan

Journal:

Année:

2015

Langue:

english

Fichier:

PDF, 1.61 MB

english, 2015

36

Efficient and low-threshold Alexandrite laser pumped by a single-mode diode

Yorulmaz, Ismail, Beyatli, Ersen, Kurt, Adnan, Sennaroglu, Alphan, Demirbas, Umit

Journal:

Optical Materials Express

Année:

2014

Langue:

english

Fichier:

PDF, 1.55 MB

english, 2014

37

Self-Q-switched Cr:LiCAF laser

Beyatli, Ersen, Sennaroglu, Alphan, Demirbas, Umit

Journal:

Journal of the Optical Society of America B

Année:

2013

Langue:

english

Fichier:

PDF, 437 KB

english, 2013

38

Attosecond timing jitter pulse trains from semiconductor saturable absorber mode-locked Cr:LiSAF lasers

Li, Duo, Demirbas, Umit, Benedick, Andrew, Sennaroglu, Alphan, Fujimoto, James G., Kärtner, Franz X.

Journal:

Année:

2012

Langue:

english

Fichier:

PDF, 1.33 MB

english, 2012

39

Diode-pumped continuous-wave and femtosecond Cr:LiCAF lasers with high average power in the near infrared, visible and near ultraviolet

Demirbas, Umit, Baali, Ilyes, Acar, Durmus Alp Emre, Leitenstorfer, Alfred

Journal:

Année:

2015

Langue:

english

Fichier:

PDF, 1.15 MB

english, 2015

40

Low-cost, broadly tunable (375–433 nm & 746–887 nm) Cr:LiCAF laser pumped by one single-spatial-mode diode

Demirbas, Umit, Uecker, Reinhard, Klimm, Detlef, Wang, Jing

Journal:

Année:

2012

Langue:

english

Fichier:

PDF, 670 KB

english, 2012

41

Compact and efficient Cr:LiSAF lasers pumped by one single-spatial-mode diode: a minimal cost approach

Demirbas, Umit, Eggert, Stefan, Leitenstorfer, Alfred

Journal:

Journal of the Optical Society of America B

Année:

2012

Langue:

english

Fichier:

PDF, 503 KB

english, 2012

42

Tapered diode-pumped continuous-wave alexandrite laser

Beyatli, Ersen, Baali, Ilyes, Sumpf, Bernd, Erbert, Götz, Leitenstorfer, Alfred, Sennaroglu, Alphan, Demirbas, Umit

Journal:

Journal of the Optical Society of America B

Année:

2013

Langue:

english

Fichier:

PDF, 576 KB

english, 2013

43

The electrochemical and spectroelectrochemical properties of metal free and metallophthalocyanines containing triazole/piperazine units

Demirbaş, Ümit, Akyüz, Duygu, Mermer, Arif, Akçay, Hakkı Türker, Demirbaş, Neslihan, Koca, Atıf, Kantekin, Halit

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Année:

2016

Langue:

english

Fichier:

PDF, 1.92 MB

english, 2016

44

Investigation of DNA Binding, DNA Photocleavage, topoisomerase I inhibition and antioxidant activities of Water soluble titanium(IV) phthalocyanine compounds

Özel, Arzu, Barut, Burak, Demirbaş, Ümit, Biyiklioglu, Zekeriya

Journal:

Journal of Photochemistry and Photobiology B: Biology

Année:

2016

Langue:

english

Fichier:

PDF, 763 KB

english, 2016

45

Synthesis and electrochemical characterization of tetra-(5-chloro-2-(2,4-dichlorophenoxy)phenol) substituted Ni(II), Fe(II) and Cu(II) metallophthalocyanines

Demirbaş, Ümit, Kobak, Rabia Zeynep Uslu, Barut, Burak, Bayrak, Rıza, Koca, Atıf, Kantekin, Halit

Journal:

Synthetic Metals

Année:

2016

Langue:

english

Fichier:

PDF, 1.70 MB

english, 2016

46

Synthesis, characterization, electrochemical and spectroelectrochemical properties of novel peripherally tetra-1,2,4-triazole substituted phthalocyanines

Demirbaş, Ümit, Kobak, Rabia Zeynep Uslu, Akçay, Hakkı Türker, Ünlüer, Dilek, Koca, Atıf, Çelik, Fatih, Kantekin, Halit

Journal:

Synthetic Metals

Année:

2016

Langue:

english

Fichier:

PDF, 2.28 MB

english, 2016

47

Power and efficiency scaling of diode pumped Cr:LiSAF lasers: 770–1110 nm tuning range and frequency doubling to 387–463 nm

Demirbas, Umit, Baali, Ilyes

Journal:

Année:

2015

Langue:

english

Fichier:

PDF, 1.49 MB

english, 2015

48

The determination of photophysical and photochemical parameters of novel metal-free, zinc(II) and lead(II) phthalocyanines bearing 1,2,4-triazole groups

Demirbaş, Ümit, Pişkin, Mehmet, Bayrak, Rıza, Ünlüer, Dilek, Düğdü, Esra, Durmuş, Mahmut, Kantekin, Halit

Journal:

Synthetic Metals

Année:

2016

Langue:

english

Fichier:

PDF, 1.25 MB

english, 2016

49

Metal-free, zinc(II) and lead(II) phthalocyanines functioning with 3-(2H-benzo[d][1,2,3]triazol-2-yl)-4-hydroxyphenethyl methacrylate groups: Synthesis and investigation of photophysical and photochemical properties

Demirbaş, Ümit, Pişkin, Mehmet, Barut, Burak, Bayrak, Rıza, Durmuş, Mahmut, Kantekin, Halit

Journal:

Synthetic Metals

Année:

2016

Langue:

english

Fichier:

PDF, 2.09 MB

english, 2016

50

Peripherally and non-peripherally tetra-benzothiazole substituted metal-free zinc (II) and lead (II) phthalocyanines: Synthesis, characterization, and investigation of photophysical and photochemical properties

Demirbaş, Ümit, Göl, Cem, Barut, Burak, Bayrak, Rıza, Durmuş, Mahmut, Kantekin, Halit, Değirmencioğlu, İsmail

Journal:

Journal of Molecular Structure

Année:

2016

Langue:

english

Fichier:

PDF, 2.40 MB

english, 2016