K. Koughia: search on Z-Library

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1

VO2 microrods synthesized from V2O5 thin films

Zhang, Chunzi, Wang, Jian, Li, Yuanshi, Li, Xiaoju, Koughia, Cyril, Wen, Shi-Jie, Wong, Rick, Yang, Qiaoqin, Kasap, Safa

Journal:

Applied Surface Science

Year:

2019

Language:

english

File:

PDF, 1.38 MB

english, 2019

2

Charge transport in pure and stabilized amorphous selenium: re-examination of the density of states distribution in the mobility gap and the role of defects

Kasap, Safa, Koughia, Cyril, Berashevich, Julia, Johanson, Robert, Reznik, Alla

Journal:

Journal of Materials Science: Materials in Electronics

Year:

2015

Language:

english

File:

PDF, 2.10 MB

english, 2015

3

[IEEE 2016 18th International Conference on Transparent Optical Networks (ICTON) - Trento, Italy (2016.7.10-2016.7.14)] 2016 18th International Conference on Transparent Optical Networks (ICTON) - The influence of radiation trapping on spectra and measured lifetimes of 4 F9/2 - 4 I15/2, 4 I9/2 - 4 I15/2, 4 I11/2 - 4 I15/2 and 4 I13/2 - 4 I15/2 emission bands

Kasap, Safa, Koughia, Cyril

Year:

2016

Language:

english

File:

PDF, 386 KB

english, 2016

4

Photoluminescence of ytterbium doped amorphous silicon and silicon carbide

E.I. Terukov, V.Kh. Kudoyarova, A.N. Kuznetsov, K.V. Koughia, G. Weiser, H. Küehne

Journal:

Materials Science and Engineering: B

Year:

2001

Language:

english

File:

PDF, 81 KB

english, 2001

5

Valency conversion of samarium ions under high dose synchrotron generated X-ray radiation

George Belev, Go Okada, Dancho Tonchev, Cyril Koughia, Chris Varoy, Andy Edgar, Tomasz Wysokinski, Dean Chapman, Safa Kasap

Journal:

physica status solidi (c)

Year:

2011

Language:

english

File:

PDF, 409 KB

english, 2011

6

Characterization of4I9/2

Cyril Koughia, Gokulakrishnan Soundararajan, Safa Kasap, Trevor Allen, Chris Haugen, Ray Decorby, N. Ohrui, Takeshi Aoki, C. Fujihashi

Journal:

Journal of Materials Science: Materials in Electronics

Year:

2009

Language:

english

File:

PDF, 557 KB

english, 2009

7

Density of states in the mobility gap of stabilized a-Se from electron time-of-flight photocurrent analysis

K.V. Koughia, B. Fogal, G. Belev, R.E. Johanson, S.O. Kasap

Journal:

Journal of Non-Crystalline Solids

Year:

2004

Language:

english

File:

PDF, 362 KB

english, 2004

8

Optical properties of Ge28Ga6.2S65.3:Er0.5 glass: Stark levels and optical gain coefficient

Koughia, C., Brik, M.G., Soundararajan, Gokulakrishnan, Kasap, S.

Journal:

Journal of Non-Crystalline Solids

Year:

2013

Language:

english

File:

PDF, 651 KB

english, 2013

9

Electronic properties of Erbium doped amorphous silicon

J.P. Kleider, C. Longeaud, R. Meaudre, M. Meaudre, S. Vignoli, K.V. Koughia, E.I. Terukov, O.I. Konkov

Journal:

Materials Science and Engineering: B

Year:

2001

Language:

english

File:

PDF, 85 KB

english, 2001

10

High-resolution X-ray imaging with samarium-doped fluoroaluminate and fluorophosphate glass

Edgar, A., Varoy, C.R., Koughia, C., Okada, G., Belev, G., Kasap, S.

Journal:

Journal of Non-Crystalline Solids

Year:

2013

Language:

english

File:

PDF, 610 KB

english, 2013

11

Synthesis, structure and optical properties of high-quality VO2 thin films grown on silicon, quartz and sapphire substrates by high temperature magnetron sputtering: Properties through the transition temperature

Zhang, Chunzi, Koughia, Cyril, GÃ¼neÅ, Ozan, Luo, Jun, Hossain, Nazmul, Li, Yuanshi, Cui, Xiaoyu, Wen, Shi-Jie, Wong, Rick, Yang, Qiaoqin, Kasap, Safa

Journal:

Journal of Alloys and Compounds

Year:

2020

File:

PDF, 4.55 MB

2020

12

Topology of conductive clusters in sputtered high-quality VO 2 thin films on the brink of percolation threshold during insulator-to-metal and metal-to-insulator transitions

Koughia, Cyril, Gunes, Ozan, Zhang, Chunzi, Wen, Shi-Jie, Wong, Rick, Yang, Qiaoqin, Kasap, Safa O.

Journal:

Journal of Vacuum Science & Technology A Vacuum Surfaces and Films

Year:

2020

File:

PDF, 3.17 MB

2020

13

Optical and photoluminescence properties of Er-doped (GeSe2)1−x(Ga2Se3)xbulk glasses

J. Ikuta, K. Maeda, T. Sakai, T. Ikari, K. Koughia, M. Munzar, S. O. Kasap

Journal:

Journal of Materials Science: Materials in Electronics

Year:

2007

Language:

english

File:

PDF, 232 KB

english, 2007

14

Photoluminescence lifetime spectrum in erbium doped Ge–Ga–S glasses

K. Koughia, D. Saitou, T. Aoki, M. Munzar, S.O. Kasap

Journal:

Journal of Non-Crystalline Solids

Year:

2006

Language:

english

File:

PDF, 242 KB

english, 2006

15

Structural and physical properties of NbO2 and Nb2O5 thin films prepared by magnetron sputtering

Hossain, Nazmul, Günes, Ozan, Zhang, Chunzi, Koughia, Cyril, Li, Yuanshi, Wen, Shi-Jie, Wong, Rick, Kasap, Safa, Yang, Qiaoqin

Journal:

Journal of Materials Science: Materials in Electronics

Year:

2019

Language:

english

File:

PDF, 1.82 MB

english, 2019

16

Optical properties of erbium-doped fluorochlorozirconate glasses

Gokulakrishnan Soundararajan, Cyril Koughia, Andy Edgar, Chris Varoy, Safa Kasap

Journal:

Journal of Non-Crystalline Solids

Year:

2011

Language:

english

File:

PDF, 646 KB

english, 2011

17

Optical and selected thermal properties of samarium-doped fluorochlorozirconate (FCZ) glass-ceramics: Formation and growth of BaCl2 nanocrystals in FCZ glass-ceramics

Cyril Koughia, Go Okada, Dancho Tonchev, Safa Kasap, Andy Edgar, Christopher R. Varoy, Heinz von Seggern

Journal:

Journal of Non-Crystalline Solids

Year:

2011

Language:

english

File:

PDF, 1.53 MB

english, 2011

18

ESR study of samarium doped fluorophosphate glasses for high-dose, high-resolution dosimetry

Vahedi, Shahrzad, Okada, Go, Koughia, Cyril, Sammynaiken, Ramaswami, Edgar, Andy, Kasap, Safa

Journal:

Optical Materials Express

Year:

2014

Language:

english

File:

PDF, 1.35 MB

english, 2014

19

Size, composition and alignment of VO2 microrod crystals by the reduction of V2O5 thin films, and their optical properties through insulator-metal transitions

Zhang, Chunzi, Koughia, Cyril, Gunes, Ozan, Li, Xiaoju, Li, Yuanshi, Feng, Renfei, Wen, Shijie, Wong, Rick, Yang, Qiaoqin, Kasap, Safa

Journal:

Journal of Alloys and Compounds

Year:

2020

File:

PDF, 16.39 MB

2020

20

Optical properties of divalent samarium-doped fluorochlorozirconate glasses and glass ceramics

A. Edgar, C.R. Varoy, C. Koughia, D. Tonchev, G. Belev, G. Okada, S.O. Kasap, H. von Seggern, M. Ryan

Journal:

Optical Materials

Year:

2009

Language:

english

File:

PDF, 678 KB

english, 2009

21

Trivalent Er and Sm ions in fluorochlorozirconate glasses: optical properties and X-ray luminescence

Cyril Koughia, George Belev, Gokulakrishnan Soundararajan, Go Okada, Dancho Tonchev, Andy Edgar, Christopher R. Varoy, Heinz von Seggern, Safa Kasap

Journal:

physica status solidi (c)

Year:

2011

Language:

english

File:

PDF, 274 KB

english, 2011

22

Photo-Induced and Thermally Stimulated Degredation in a-Si:H : Mechanism of Defect Creation

Aldabergenova, S.B., Andreev, Boris A., Koughia, K.V., Sidorova, T.A.

Journal:

Solid State Phenomena

Year:

1994

File:

PDF, 275 KB

1994

23

Density of localized state distribution near the valence band in stabilized a-Se using interrupted field time of flight measurements with long interruption times

Koughia, Cyril, Reznik, Alla, Allen, Christopher, Johanson, Robert, Kasap, Safa

Journal:

physica status solidi (a)

Year:

2016

Language:

english

File:

PDF, 1.52 MB

english, 2016

24

Optical and electrical properties of alkaline-doped and As-alloyed amorphous selenium films

Güneş, O., Koughia, C., Curry, R. J., Gholizadeh, A. B., Belev, G., Ramaswami, K. O., Kasap, S. O.

Journal:

Journal of Materials Science: Materials in Electronics

Year:

2019

File:

PDF, 2.29 MB

2019

25

Improvement of 1.54 μm luminescence in erbium-doped a-SiOx:H alloys

E.I Terukov, Yu.K Undalov, V.Kh Kudoyarova, K.V Koughia, J.P Kleider, M.E Gueunier, R Meaudre

Journal:

Journal of Non-Crystalline Solids

Year:

2002

Language:

english

File:

PDF, 263 KB

english, 2002

26

Near-zero IR transmission of VO 2 thin films deposited on Si substrate

Zhang, Chunzi, Koughia, Cyril, Li, Yuanshi, Cui, Xiaoyu, Ye, Fan, Shiri, Sheida, Sanayei, Mohsen, Wen, Shi-Jie, Yang, Qiaoqin, Kasap, Safa

Journal:

Applied Surface Science

Year:

2018

Language:

english

File:

PDF, 2.38 MB

english, 2018

27

Photoconductivity decay model in a-Si: H at low temperatures

A.A. Andreev, A.V. Zherzdev, A.I. Kosarev, K.V. Koughia, I.S. Shlimak

Journal:

Solid State Communications

Year:

1984

Language:

english

File:

PDF, 257 KB

english, 1984

28

Optical properties vacuum deposited and chlorine dopeda-Se thin films: aging effects

Wee Chong Tan, George Belev, K. Koughia, Robert Johanson, Stephen K. O’Leary, Safa Kasap

Journal:

Journal of Materials Science: Materials in Electronics

Year:

2007

Language:

english

File:

PDF, 325 KB

english, 2007

29

Density of states of a-Se near the valence band

K. Koughia, S.O. Kasap

Journal:

Journal of Non-Crystalline Solids

Year:

2006

Language:

english

File:

PDF, 285 KB

english, 2006

30

X-ray induced Sm3+ to Sm2+ conversion in fluorophosphate and fluoroaluminate glasses for the monitoring of high-doses in microbeam radiation therapy

Vahedi, Shahrzad, Okada, Go, Morrell, Brian, Muzar, Edward, Koughia, Cyril, Edgar, Andy, Varoy, Chris, Belev, George, Wysokinski, Tomasz, Chapman, Dean, Kasap, Safa

Journal:

Journal of Applied Physics

Year:

2012

Language:

english

File:

PDF, 1.78 MB

english, 2012

31

Optical and Photoluminescence Properties of Erbium-Doped Chalcogenide Glasses (GeGaS:Er)

Kasap, S., Koughia, K., Soundararajan, G., Brik, M.G.

Journal:

IEEE Journal of Selected Topics in Quantum Electronics

Year:

2008

Language:

english

File:

PDF, 489 KB

english, 2008

32

Characterization of vanadium oxide thin films with different stoichiometry using Raman spectroscopy

Zhang, Chunzi, Yang, Qiaoqin, Koughia, Cyril, Ye, Fan, Sanayei, Mohsen, Wen, Shi-Jie, Kasap, Safa

Journal:

Thin Solid Films

Year:

2016

Language:

english

File:

PDF, 1.81 MB

english, 2016

33

Influence of UV irradiation on a-Si:H film growth

Svetoslav Koynov, Atanaska Toneva, Cyril Koughia

Journal:

Journal of Non-Crystalline Solids

Year:

1991

Language:

english

File:

PDF, 233 KB

english, 1991

34

Optical properties of Er-doped Gax(Ge0.3Se0.7)100−x glasses

M. Munzar, C. Koughia, D. Tonchev, K. Maeda, T. Ikari, C. Haugen, R. Decorby, J.N. McMullin, S.O. Kasap

Journal:

Optical Materials

Year:

2006

Language:

english

File:

PDF, 255 KB

english, 2006

35

The influence of CsBr addition on optical and thermal properties of GeGaS glasses doped with erbium

Z. G. Ivanova, C. Koughia, G. Soundararajan, J. Heo, D. Tonchev, M. Jayasimhadri, S. O. Kasap

Journal:

Journal of Materials Science: Materials in Electronics

Year:

2009

Language:

english

File:

PDF, 559 KB

english, 2009

36

Recombination in hydrogenated amorphous silicon

K. V. Koughia, E. I. Terukov, V. Fuhs

Journal:

Year:

1998

Language:

english

File:

PDF, 137 KB

english, 1998

37

The nature of photoconductivity decay spectral dependence in a-Si:H

C.V. Koughia, E.I. Terukov

Journal:

Journal of Non-Crystalline Solids

Year:

1991

Language:

english

File:

PDF, 235 KB

english, 1991

38

Photoluminescence measurements of Er-doped chalcogenide glasses

Allen, T. W., Hawkeye, M. M., Haugen, C. J., DeCorby, R. G., McMullin, J. N., Tonchev, D., Koughia, K., Kasap, S. O.

Journal:

Journal of Vacuum Science & Technology A Vacuum Surfaces and Films

Year:

2004

Language:

english

File:

PDF, 500 KB

english, 2004

39

Density of localized electronic states in a-Se from electron time-of-flight photocurrent measurements

Koughia, K., Shakoor, Z., Kasap, S. O., Marshall, J. M.

Journal:

Journal of Applied Physics

Year:

2005

Language:

english

File:

PDF, 976 KB

english, 2005

40

On the optical absorption and photoluminescence of Er-doped Ge–S–Ga glasses

Z.G. Ivanova, Z. Aneva, K. Koughia, D. Tonchev, S.O. Kasap

Journal:

Journal of Non-Crystalline Solids

Year:

2007

Language:

english

File:

PDF, 190 KB

english, 2007

41

Quadrature frequency resolved spectroscopy (QFRS) of radiative transitions of Er 3+ and Nd 3+ ions in chalcogenide glasses (ChGs)

Aoki, T, Saitou, D, Fujimoto, K, Fujihashi, C, Shimakawa, K, Koughia, K, Kasap, S O

Journal:

Journal of Physics Conference Series

Year:

2010

Language:

english

File:

PDF, 823 KB

english, 2010

42

Recent photoluminescence research on chalcogenide glasses for photonics applications

S.O. Kasap, K. Koughia, M. Munzar, D. Tonchev, D. Saitou, T. Aoki

Journal:

Journal of Non-Crystalline Solids

Year:

2007

Language:

english

File:

PDF, 1.55 MB

english, 2007

43

Spatially resolved measurement of high doses in microbeam radiation therapy using samarium doped fluorophosphate glasses

Okada, Go, Morrell, Brian, Koughia, Cyril, Edgar, Andy, Varoy, Chris, Belev, George, Wysokinski, Tomasz, Chapman, Dean, Kasap, Safa

Journal:

Applied Physics Letters

Year:

2011

Language:

english

File:

PDF, 992 KB

english, 2011

44

Tailoring the 4I9/2→4I13/2 emission in Er3+ ions in different hosts media

Koughia, Cyril, Craig, Chris, Hewak, Daniel W., Kasap, Safa

Journal:

Optical Materials

Year:

2015

Language:

english

File:

PDF, 1.02 MB

english, 2015

45

Intense AntiâStokes Emission from Erbium Ions in Gallium Lanthanum SulphideâOxide Glass in the Visible Spectral Range

Voronov, M. M., Pevtsov, A. B., Skvortsov, A. P., Koughia, C., Craig, C., Hewak, D. W., Kasap, S., Golubev, V. G.

Journal:

physica status solidi (a)

Year:

2020

File:

PDF, 810 KB

2020

46

X-ray induced effects in the optical and thermal properties of a-Se1−x As x (x = 0, 0.005, 0.06) doped with 0–220 ppm Cs

Jung, Yeonhee, Güneş, Ozan, Belev, George, Koughia, Cyril, Johanson, Robert, Kasap, Safa

Journal:

Journal of Materials Science: Materials in Electronics

Year:

2017

Language:

english

File:

PDF, 1.49 MB

english, 2017

47

Solution-processed Er 3+ -doped As 3 S 7 chalcogenide films: Optical properties and 1.5 μm photoluminescence activated by thermal treatment

Strizik, Lukas, Wagner, Tomas, Weissova, Veronika, Oswald, Jiří, Palka, Karel, Beneš, Ludvík, Krbal, Milos, Jambor, Roman, Koughia, Cyril, Kasap, Safa

Journal:

Journal of Materials Chemistry C

Year:

2017

Language:

english

File:

PDF, 2.04 MB

english, 2017

48

Excitation diffusion in GeGaSe and GeGaS glasses heavily doped with Er^3+

Koughia, Cyril, Kasap, Safa O.

Journal:

Year:

2008

Language:

english

File:

PDF, 377 KB

english, 2008

49

SPIE Proceedings [SPIE Medical Imaging 2003 - San Diego, CA (Saturday 15 February 2003)] Medical Imaging 2003: Physics of Medical Imaging - Active pixel image sensor for large-area medical imaging

Karim, Karim S., Vygranenko, Yurii K., Avila-Munoz, Alfredo, Striakhilev, Denis A., Nathan, Arokia, Germann, Stephen, Rowlands, John A., Belev, George, Koughia, Cyril, Johanson, Robert, Kasap, Safa O.

Year:

2003

Language:

english

File:

PDF, 420 KB

english, 2003

50

Observation of 4F3/2→4I15/2 radiative transition in Nd3+ ions in GaLaS glass using frequency-resolved PL spectroscopy

Takeshi Aoki, Kirill Koughia, K. Fujimoto, C. Fujihashi, R. DeCorby, C. Haugen, D. W. Hewak, D. Tonchev, Safa Kasap

Journal:

physica status solidi (c)

Year:

2009

Language:

english

File:

PDF, 272 KB

english, 2009

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