Search Results - "Kasap, S.O."

Direct-conversion flat-panel X-ray image sensors for digital radiography by Kasap, S.O., Rowlands, J.A.

“…Advances in active-matrix array flat panels for displays over the last decade have led to the development of flat-panel X-ray image detectors. Recent…”
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Recent advances in X-ray photoconductors for direct conversion X-ray image detectors by Kasap, S.O., Zahangir Kabir, M., Rowlands, J.A.

“…Recent research on flat panel X-ray image detectors has shown their potential for replacing existing X-ray film/screen cassettes and capturing X-ray images…”
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High index contrast waveguides in chalcogenide glass and polymer by DeCorby, R.G., Ponnampalam, N., Pai, M.M., Nguyen, H.T., Dwivedi, P.K., Clement, T.J., Haugen, C.J., McMullin, J.N., Kasap, S.O.

“…We review various properties of chalcogenide glasses that make them promising materials for passive and active microphotonics. We then describe two processes…”
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Avalanche multiplication in amorphous selenium and its utilization in imaging by Reznik, A., Baranovskii, S.D., Rubel, O., Jandieri, K., Kasap, S.O., Ohkawa, Y., Kubota, M., Tanioka, K., Rowlands, J.A.

“…Amorphous selenium (a-Se) is a well known photoconductor that is currently used in X-ray image detectors and HARP video tubes. Recent advances have made it…”
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The origin of anomalous optical conductivity in metallic polymers: A unified model by Shimakawa, K., Naito, H., Kasap, S.O.

“…An anomalous behavior of the complex optical conductivity in metallic polymers, which has been a perplexing issue for nearly 15 years, is interpreted…”
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Effect of aging on glass transformation measurements by temperature modulated DSC by Tonchev, D., Kasap, S.O.

“…Differential scanning calorimetry (DSC) is a well established technique for studying the glass transformation behavior of glasses and for measuring the glass…”
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Optical properties of Er-doped Gax(Ge0.3Se0.7)100−x glasses by Munzar, M., Koughia, C., Tonchev, D., Maeda, K., Ikari, T., Haugen, C., Decorby, R., McMullin, J.N., Kasap, S.O.

“…Optical properties of Gax(Ge0.3Se0.7)100−x glasses doped with Er2S3 have been investigated as a function of Ga and Er concentrations. The increase of Ga…”
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X-Ray Detection Using a Two-Transistor Active Pixel Sensor Array Coupled to an a-Se X-Ray Photoconductor by Taghibakhsh, F., Karim, K.S., Belev, G., Kasap, S.O.

“…A direct-conversion X-ray sensor array using amorphous silicon (a-Si) thin-film transistor (TFT) based active pixel sensor (APS) readout circuit coupled with a…”
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Sensitivity of stabilized a-Se based X-ray photoconductors by Kabir, M. Zahangir, Yunus, M., Kasap, S.O., Tousignant, O., Mani, H., Gauthier, P.

“…A model explaining the ghosting mechanisms in amorphous selenium based X-ray image detectors is described by considering deep trapping of charge carriers,…”
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Thermal properties of SbxSe100-x glasses studied by modulated temperature differential scanning calorimetry by TONCHEV, D, KASAP, S. O

“…The reversing and nonreversing heat flows through the glass transformations were measured during both heating and cooling scans. T subg, DELTA H subg, C subp,…”
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Rare-earth doped chalcogenide thin films fabricated by pulsed laser deposition by Dwivedi, P.K., Sun, Y.W., Tsui, Y.Y., Tonchev, D., Munzar, M., Koughia, K., Haugen, C.J., DeCorby, R.G., McMullin, J.N., Kasap, S.O.

“…Erbium doped Ge–Ga–Se thin films were fabricated by the pulsed laser deposition (PLD) technique in vacuum using a KrF pulse laser with λ = 248 nm, and a pulse…”
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Self-assembled single crystal VO2 (A) microbelts by the reduction of V2O5 thin films: synthesis, structure and optical properties by Zhang, Chunzi, Koughia, Cyril, Zhu, Jianfeng, Feng, Renfei, Gunes, Ozan, Wen, Shijie, Yang, Qiaoqin, Kasap, S.O.

“…•Single crystal VO2 (A) microbelts (MBs) were synthesized for the first time via the reduction of V2O5 thin films.•VO2 (A) exhibit belt-like morphology with a…”
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The structure of As S100− glasses studied by temperature-modulated differential scanning calorimetry and Raman spectroscopy by Wágner, T, Kasap, S.O, Vlček, M, Sklenář, A, Stronski, A

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Anomalous optical conductivity in disordered condensed matter by Shimakawa, K., Itoh, T., Naito, H., Kasap, S.O.

“…The real and imaginary optical conductivities in disordered semiconductors (and metals) do not follow classical Drude's law in the near infrared region. We…”
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Amorphous selenium as an X-ray photoconductor by Belev, G., Kasap, S.O.

“…We report on electron and hole drift mobility, lifetime and range measurements on vacuum coated stabilized a-Se (a-Se alloyed with As and doped with Cl) X-ray…”
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Thermal and optical properties of AgSbS2 thin films prepared by pulsed laser deposition (PLD) by Gutwirth, J., Wágner, T., Němec, P., Kasap, S.O., Frumar, M.

“…Thin amorphous AgSbS2 films were deposited as the potential candidate for new phase-change memory material. Thin films were prepared by pulsed laser deposition…”
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Ion conductive chalcohalide glasses in LiI-Ga2S3-GeS2 system by KOLAR, J, WAGNER, T, ZIMA, V, STEHLIK, S, FRUMAROVA, B, BENES, L, VLCEK, M, FRUMAR, M, KASAP, S. O

“…The electric properties of LiI containing chalcohalide glasses in the system Ga2S3-GeS2 were studied by means of impedance spectroscopy and potentiostatic…”
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Reduction of the dark current in stabilized a-Se based X-ray detectors by Belev, G., Kasap, S.O.

“…The carrier ranges in vacuum deposited stabilized amorphous selenium films have been studied as a function of substrate temperature during deposition. While…”
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Recent photoluminescence research on chalcogenide glasses for photonics applications by Kasap, S.O., Koughia, K., Munzar, M., Tonchev, D., Saitou, D., Aoki, T.

“…The optical properties of GeGaSe glasses doped with Er by the addition of Er2S3 have been investigated. Optically uniform glasses have been prepared using…”
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Optical properties of divalent samarium-doped fluorochlorozirconate glasses and glass ceramics by Edgar, A., Varoy, C.R., Koughia, C., Tonchev, D., Belev, G., Okada, G., Kasap, S.O., von Seggern, H., Ryan, M.

“…Glass ceramics comprising Sm 2+-doped barium chloride in both hexagonal and orthorhombic phases embedded in a fluorochlorozirconate glass matrix have been…”
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