ARŞ.GÖR. AHMET KARATAY    
Adı : AHMET
Soyadı : KARATAY
E-posta : akaratay@eng.ankara.edu.tr
Tel : 0(312) 203 35 09
Ünvan : ARŞ.GÖR.
Birim : MÜHENDİSLİK FAKÜLTESİ
Bölüm : FİZİK MÜHENDİSLİĞİ BÖLÜMÜ
Kişisel Akademik Bilgiler

Personal Data:

Surname, First name:  KARATAY, Ahmet

Address:                         Ankara University,

Department of Engineering Physics,

Tandogan - Ankara / TURKEY 06100

Date of Birth:                 26/01/1988

Place of Birth:                Bursa / Turkey

Marital Status:               Marriage  

Email:                             akaratay@eng.ankara.edu.tr

Web Sites:                      www.omag.ankara.edu.tr

Education:

09/11 -12/15                   Ph. D. Ankara University / Graduate School of Natural and Applied ScienceDepartment of Engineering Physics – Nonlinear Optics Group(3.71/4.00)

Ph. D. Thesis: Effects Of Heavy Atom Binding To Aza-Bodipy Compounds On Nonlinear Absorption, Fluorescence And Ultrafast Spectroscopic Properties

Advisor: Prof. Dr. Ayhan ELMALI

09/09- 06/11                   M. Sc. Ankara University / Graduate School of Natural and Applied ScienceDepartment of Engineering Physics – Nonlinear Optics Group(3.60/4.00)

Master Thesis: Nonlinear Optical Properties of In0.15Ga0.85Se Single Crystal and Their Amorphous Thin Films

Advisor: Prof. Dr. Ayhan ELMALI

09/04-06/09                    B. Sc.Ankara University / Faculty of Engineering / Department of Physics Engineer (3.78/4.00)

Graduation Thesis: Z-scan and spin coating techniques

Research Focuses

·       Nonlinear Optics

·       Semiconductor crystals and thin films

·       Ultrafast Pump-Probe Spectroscopy

·       Nanoparticle Synthesis by Laser Ablation Method

·       Photonics

·       Energy Transfer Mechanism of Organic Molecules

·       Plasmon-Exciton Coupling Mechanism

·       Two Photon Absorption Properties of Organic Molecules


Skills

Technical skills

·       MS Office

·       User of Spectra Physics Spitfire Pro XP + Tsunami Femtosecond Laser System

·       User of Spectra Physics Helios Ultrafast Transient Spectroscopy System

·       User of Spectra Physics TOPAS Optical Parametric Amplifier UV-I to Near Infrared (200-2800 nm)

·       User of Continuum Leopard Picosecond Laser System

·       User of Brilliant Nanosecond Laser System

·       User of J. A. Woollam M2000V Spectroscopic Ellipsometry System

·       User of VaksisEkin Vacuum Thermal Evaporation System

·       User of SCS G3 Spin Coating System

Language Skills

English

Scholars/ Honor Degrees:

2008-2011             TUBITAK 1001 Project Scholarship “Fitalosiyaninlerin Polimer Matrisdeki İnce Filmlerinin Optik Sınırlayıcı Özelliklerinin İncelenmesi” (project number: 107T708)

06/2009                  Ankara University / Third degree of the engineering of faculty

06/2009                  Ankara University / Faculty of Engineering/Physics engineering best student of the department

2005-2009             Ankara University / Faculty of Engineering – High Honor Degree

all semester

Projects:

02/16 – 02/17        Ankara University, Project Coordinator “The investigation of linear and nonlinear optical properties of amorphous thin films obtained from CuIn0.7Ga0.3(SexTe1-x)2 bulk crystals.” (project number: 16H0443003)

 

Publications:

27)02/18                Karatay, Ahmet; Yuksek, Mustafa; Ertap, Hüseyin; Elmali, Ayhan; Karabulut, Mevlut “Enhancing the blue shift of SHG signal in GaSe: B/Ce crystal” OPTİCS & LASER TECHNOLOGY Volume: 99 Pages: 392-395

 

26)12/17                Hussain, Mushraf; Zhao, Jianzhang; Yang, Wenbo; Zhong, Fangfang; Karatay, Ahmet; Yaglioglu, H Gul; Akhüseyin Yildiz, Elif; Hayvali, Mustafa “Intersystem crossing and triplet excited state properties of thionated naphthalenediimide derivatives” JOURNAL OF LUMİNESCENCE Volume: 192, Pages: 211-217

 

25)11/17                Karatay, Ahmet; Küçüköz, Betül; Pekdemir, Sami; Onses, Mustafa Serdar; Elmali, Ayhan “Size and structure dependent ultrafast dynamics of plasmonic gold nanosphere heterostructures on poly (ethylene glycol) brushes” OPTICAL MATERIALS Volume: 73, Pages: 83-88

 

24)11/17                Karatay, Ahmet; Küçüköz, Betül; Çankaya, Güven; Ates, Aytunc; Elmali, Ayhan “The effect of Se/Te ratio on transient absorption behavior and nonlinear absorption properties of CuIn 0.7 Ga 0.3 (Se 1− x Te x) 2 (0≤ x≤ 1) amorphous semiconductor thin films” OPTİCAL MATERİALS Volume: 73, Pages: 20-24

 

23)10/17                Sakir, Menekse; Pekdemir, Sami; Karatay, Ahmet; Küçüköz, Betül; H İpekci, Hasan; Elmali, Ayhan; Demirel, Gökhan; Onses, M. Serdar “Fabrication of Plasmonically Active Substrates Using Engineered Silver Nanostructures for SERS Applications” ACS APPLİED MATERİALS & İNTERFACES Volume: 9 Pages: 39795-39803

 

22)07/17                Khalily, Mohammad Aref; Bakan, Gokhan; Kucukoz, Betul; Topal, Ahmet Emin; Karatay, Ahmet; Yaglioglu, H Gul; Dana, Aykutlu; Guler, Mustafa Ozgur “Fabrication of Supramolecular n/p-Nanowires via Coassembly of Oppositely Charged Peptide-Chromophore Systems in Aqueous Media” ACS NANO Volume: 11, Pages: 6881-6892

 

21)06/17                Wang, Zhijia; Zhao, Jianzhang; Barbon, Antonio; Toffoletti, Antonio; Liu, Yan; An, Yonglin; Xu, Liang; Karatay, Ahmet; Yaglioglu, Halime Gul; Akhuseyin Yildiz, Elif; Hayvali, Mustafa “Radical Enhanced Intersystem Crossing (EISC) in New Bodipy Derivatives and Application for Efficient Triplet-Triplet Annihilation Upconversion” JOURNAL OF THE AMERİCAN CHEMİCAL SOCİETY Volume: 139, Pages: 7831–7842

 

20)05/17                ElKabbash, Mohamed; R Rashed, Alireza; Kucukoz, Betul; Nguyen, Quang; Karatay, Ahmet; Yaglioglu, Gul; Ozbay, Ekmel; Caglayan, Humeyra; Strangi, Giuseppe “Ultrafast transient optical loss dynamics in exciton–plasmon nano-assemblies” NANOSCALE Volume: 19, Pages: 6558-6566

 

19)04/17                Yuksek, Mustafa; Karatay, Ahmet; Ertap, Hüseyin; Elmali, Ayhan; Karabulut, Mevlut “Frequency conversion, nonlinear absorption and carrier dynamics of GaSe: B/Er crystals” OPTİCAL MATERİALS Volume: 66, Pages: 137-141

 

18) 11/16               Balci, Sinan; Kucukoz, Betul; Balci, Osman; Karatay, Ahmet; Kocabas, Coskun; Yaglioglu, H. Gul “ Tunable plexcitonic nanoparticles: a model system for studying plasmon–exciton interaction from the weak to the ultrastrong coupling regime”ACS PHOTONICS Volume:3, Issue: 11, Pages: 2010-2016

 

17)10/16                Karatay, Ahmet; Yuksek, Mustafa; Ertap, Hüseyin; Mak, Ali Kemal; Karabulut, Mevlüt; Elmali, Ayhan “Influence of boron concentration on nonlinear absorption and ultrafast dynamics in GaSe crystals” OPTICAL MATERIALS Volume: 60, Pages: 74-80

16)08/16                Cui,Xiaoneng;  Zhao, Jianzhang;  Karatay, Ahmet;  Yaglioglu, Gul;  Hayvali,Mustafa; Kucukoz, Betul “Ru(bpy)3[PF6]2 Complex with Rhodamine Unit: Synthesis, Photophysical Properties and Application in Acid-Controllable Triplet-Triplet Annihilation Upconversion” EUROPEAN JOURNAL OF INORGANIC CHEMISTRY Volume: 32, Pages: 5079-5088

 

15)04/16                Yang , Wenbo; Zhao, Jianzhang; Sonn, Christoph; Escudero, Daniel; Karatay, Ahmet; Yaglioglu, Halime Gul; Kucukoz, Betul; Hayvali, Mustafa; Li, Chen; Jacquemin, Denis “Efficient Intersystem Crossing in Heavy atom-Free Perylenebisimide Derivatives”JOURNAL OF PHYSICAL CHEMISTRY C Volume: 120 Pages: 10162–10175.

 

14)04/16                Kucukoz, Betul; Sevinc, Gokhan; Yildiz, Elif; Karatay, Ahmet; Zhong, Fangfang, Yılmaz, Halil; Tutel, Yusuf; Hayvali, Mustafa; Zhao, Jizanzhang; Yaglioglu, H. Gul “Enhancement of Two Photon Absorption Properties and Intersystem Crossing by Charge Transfer in Pentaaryl Boron-Dipyrromethene (BODIPY) Derivatives” PHYSICAL CHEMISTRY CHEMICAL PHYSICS Volume: 18 Pages: 13546-13553.

 

13)02/16                Akhuseyin, Elif; Türkmen, Onur;Kucukoz, Betul; Yılmaz, Halil; Karatay, Ahmet; Sevinç, Gökhan; Xu, Kejing; Hayvali, Mustafa; Yaglioglu; H. Gul “Two Photon Absorption Properties of Four Coordinated Transition Metal Complexes of Tetraaryl-Azadipyrromethene Compounds” PHYSICAL CHEMISTRY CHEMICAL PHYSICS Volume: 18 Pages: 4451- 4459.

 

12)11/15                Karatay, Ahmet; Miser, M. Ceren; Cui, Xiaoneng; Kucukoz, Betul; Yılmaz, Halil; Sevinç, Gökhan; Akhüseyin, Elif; Wu, Xueyan; Hayvali, Mustafa; Yaglioglu, H. Gul; Zhao, Jianzhang; Elmali, Ayhan“The effect of heavy atom to two photon absorption properties and intersystem crossing mechanism in aza-boron-dipyrromethene compounds” DYES AND PIGMENT Volume:122 Pages: 286- 294.

 

11)08/15                Zhong, Fangfang; Karatay, Ahmet; Zhao, Liang; Zhao, Jianzhang; He, Cheng; Zhang, Caishun; Yaglioglu, HalimeGul; Elmali, Ayhan; Kucukoz, Betul; Hayvali, Mustafa“Broad-Band NN Pt(II) BisacetylideVisible Light Harvesting Complex with HeterolepticBodipyAcetylide Ligands” INORGANIC CHEMISTRY Volume: 54 Pages: 7803- 7817.

 

10)08/15                Yang, Wenbo; Karatay, Ahmet; Zhao, Jianzhang; Song, Jian; Zhao, Liang; Xing, Yongheng; Zhang, Caishun; He, Cheng; Yaglioglu, HalimeGul; Hayvali, Mustafa; Elmali, Ayhan; Kucukoz, Betul“Near - IR Broadband-Absorbing trans –BisphosphinePt(II) Bisacetylide Complexes: Preparation and Study of the Photophysics” INORGANIC CHEMISTRY Volume: 54 Pages: 7492–7505.

 

9)04/15                  Guo, Song; Xu, Liang; Xu, Kejing; Zhao, Jianzhang; Kucukoz, Betul;Karatay, Ahmet; Yaglioglu, Gul; Hayvali, Mustafa; Elmali, Ayhan “Bodipy-C60 triple hydrogen bonding assembly as heavy atom-free triplet photosensitizers: preparation and study of the singlet/triplet energy transfer” CHEMICAL SCIENCE Volume: 6 Pages: 3724-3737.

 

8)03/15                  Mahmood, Zafar; Xu, Kejing; Kucukoz, Betul; Cui, Xiaoneng; Zhao, Jianzhang; Wang, Zhijia; Karatay, Ahmet; Yaglioglu, HalimeGul; Hayvali, Mustafa; Elmali, Ayhan “DiiodoBodipy-PerylenebisimideDyad/Triad: Preparation and Study of the Intramolecular and Intermolecular Electron/Energy Transfer” JOURNAL OF ORGANIC CHEMISTRY Volume: 80 Pages: 3036- 3049.

 

7)09/14                  Jia, Huiru; Kucukoz, Betul; Xing,Yongheng; Majumdar,Poulomi; Zhang,Caishun;Karatay, Ahmet;Yaglioglu, Gul;Elmali, Ayhan;Zhao, Jianzhang, Hayvali, Mustafa “trans-Bis(alkylphosphine) platinum(II)-alkynyl complexes showing broadband visible light absorption and long-lived triplet excited states” JOURNAL OF MATERIAL CHEMISTRY C Volume: 2 Pages: 9720-9736.

 

6) 08/14                 Balci, Sinan; Kocabas, Coskun; Kucukoz, Betul; Karatay, Ahmet; Akhuseyin, Elif; Yaglioglu, H. Gul; Elmali, Ayhan;“Probing ultrafast energy transfer between excitons and plasmons in the ultrastrong coupling regime”APPLIED PHYSICS LETTERS Volume:105 Issue: 5 Article Number: 051105.

 

5) 03/14                 Ma, Jie; Yuan, Xiaolin; Kucukoz, Betul; Li, Shengfu; Zhang, Caishun; Majumdar, Poulomi; Karatay, Ahmet; Li, Xiaohuan; Yaglioglu, H. Gul; Elmali, Ayhan; Zhao, Jianzhang; Hayvali, Mustafa “Resonance energy transfer-enhanced rhodamine-styrylBodipy dyad triplet photosensitizers” JOURNAL OF MATERIALS CHEMISTRY C Volume:2 Issue: 20 Pages: 3900-3913.

 

4) 10/13                 Guo, Song; Ma, Lihua; Zhao, Jianzhang ; Kucukoz, Betul; Karatay, Ahmet; Hayvali, Mustafa; Yaglioglu, H. Gul; Elmali, Ayhan “BODIPY triads triplet photosensitizers enhanced with intramolecular resonance energy transfer (RET): broadband visible light absorption and application in photooxidation” CHEMICAL SCIENCE Volume: 5 Issue: 2 Pages: 489-500.

 

3) 02/13                 Isık, Pınar; Karatay, Ahmet; Yaglioglu, H. Gul; Elmali, Ayhan; Kurum, Ulas; Ates, Aytunc; Gasanly, Nizami "The effect of film thickness, Se/S ratio and annealing temperature on the nonlinear absorption behaviors in amorphous GaSexS1_x (0≤ x ≤ 1) thin films" OPTICS COMMUNICATIONS Volume: 288 Issue:    Pages: 107-113

 

2) 03/12                 Karatay, Ahmet; Yaglioglu H. Gul; Elmali, Ayhan; Parlak, Mehmet; Karaagac, Hüseyin "Thickness-dependent nonlinear absorption behaviors in polycrystalline ZnSe thin films" OPTICS COMMUNICATIONS Volume: 285   Pages: 1471-1475 

 

1) 06/11                 Karatay, Ahmet; Aksoy, Çağla; Yağlıoğlu, H. Gül; Elmalı, Ayhan; Kürüm, Ulaş; Ateş, Aytunç; Gasanly, Nizami “The nonlinear and saturable absorption characteristics of Ga0.90In0.10Se and Ga0.85In0.15Se semiconductor crystals and their amorphous thin films” JOURNAL OF OPTICS Volume: 13 Issue:  Pages:075203

 

CONFERENCE POSTER PRESENTATIONS:

2016                       MustafaYüksek, AhmetKaratay, HüseyinErtap, MevlütKarabulut, AyhanElmali “The effects of Boron doping on frequency conversion of semiconducting GaSe crystals” 2nd International Advanced and Functional Materials Technologies (AFMAT) (/)(Yayın No:3133590)

2016                       AlirezaRahimiRashed, MohamedElKabbash, BetülKüçüköz, Quang Nguyen, AhmetKaratay, H. GulYaglioglu, EkmelÖzbay, Humeyra Çaglayan, GiuseppeStrangi “Investigating Ultrafast Dynamics of Plasmonic Ohmic Loss mitigation in Gain-Plasmon Nanocomposite Polymeric Film.” Nanoplasm  Cetrato (CS) - Italy (/)(Yayın No:3145209)

2015                       BetulKucukoz, HuiruJia, Yongheng Xing, PoulomiMajumdar, Caishun Zhang, AhmetKaratay, H. GulYaglioglu, AyhanElmali, Jianzhang Zhao, Mustafa Hayvalı “Trans-Bis(Alkylphosphine) Platinum(II)-Alkynyl Complexes Showing Broadband Visible Light Absorption and Long-Lived Triplet Excited States” 17. National Optic, Electro-Optic and Photonic Conference, Ankara University, 2015.

2015                       AhmetKaratay , M. CerenMiser , XiaonengCui , BetülKüçüköz , HalilYılmaz , GokhanSevinç , ElifAkhüseyin , XueyanWu , MustafHayvali, H. GulYaglioglu, JianzhangZhao , AyhanElmali. “The Effect Of Heavy Atom To Two Photon Absorptıon Propertıes And Intersystem Crossıng Mechanısm In Azaboron-Dıpyrromethene Compounds”, 17. National Optic, Electro-Optic and Photonic Conference, ANKARA UNIVERSITY, 2015.

2014                       Ahmet Karatay, Jie Ma, Xiaolin Yuan, Song Guo, Lihua Ma,Jianzhang Zhao, Betül Küçüköz, Shengfu Li, Caishun Zhang, Poulomi Majumdar, Xiaohuan Li, H. Gul Yaglioglu, Mustafa Hayvalı and Ayhan Elmali, “Resonance Energy Transfer-Enhanced Rhodamine–Styryl Bodipy Dyad And Bodipy Triads Triplet Photosensitizers”, 16. National Optic, Electro-Optic and Photonic Conference, KOCAELİ UNIVERSITY, 2014.

2014                       Elif Akhüseyin, Sinan Balci, Coşkun Kocabas, Betül Küçüköz, Ahmet Karatay, H. Gul Yaglioglu, ve Ayhan Elmali, “Probing Ultrafast Energy Transfer Between Excitons And Plasmons In The Ultrastrong Coupling Regime”, 16. National Optic, Electro-Optic and Photonic Conference, KOCAELİ UNIVERSITY, 2014.

2013                       AhmetKaratay, PınarIşık, UlaşKürüm, ÇağlaAksoy, H. GulYaglioglu, MustafaYüksek, AyhanElmali, AytunçAteş, MehmetParlak, HakanKaraağaç, MevlütKarabulut, GasanM.Mamedov, NizamiGasanly, “The Effect Of Film Thickness And Doping On The Nonlinear And Saturable Absorption Behaviour Of Semiconductor Thin Films”, 15. National Optic, Electro-Optic and Photonic Conference, ASELSAN, 2013.

2013                       Elif Akhüseyin, Ahmet Karatay, Betül Küçüköz , Halil Yılmaz, Onur Türkmen, Mustafa Hayvalı, H. Gül Yağlıoğlu, Ayhan Elmali, “Tetraarilazadipirometen Bileşiklerinin Metal Komplekslerinin Doğrusal Olmayan Optik Özelliklerinin İncelenmesi”, 15. National Optic, Electro-Optic and Photonic Conference, ASELSAN, 2013.