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Items where Author is "Najafi, S. Iraj"

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Number of items: 89.

A

Alavian, S., Touam, T., & Najafi, S. I. (2000). Analysis of integrated photonics devices by a new simplified propagation method. Journal of optical communications, 21(2), 60-65. External link

Andrews, M. P., Saravanamuttu, K., & Najafi, S. I. (1998, July). Light induced densification and mechanisms in hybrid sol-gel glasses for photonic devices [Paper]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. External link

Andrews, M. P., & Najafi, S. I. (1997, July). Passive and active sol gel materials and devices [Paper]. Sol-gel and polymer photonic devices Conference, San Diego, CA. Published in Critical reviews of optical science and technology, 68. Unavailable

Andrews, M. P., & Najafi, S. I. (1997, January). Passive and active sol-gel materials and devices [Paper]. Sol-Gel and Polymer Photonic Devices: A Critical Review, San Diego, Calif.. External link

Andrews, M. P., Kanigan, T., & Najafi, S. I. Auto-embossed Bragg gratings from self-organizing polymers: chemical tuning of periodicity and photoinduced anisotropy [Paper]. Functional Photonic and Fiber Devices. External link

Auger, P. L., & Najafi, S. I. (1994). New method to design directional coupler dual wavelength multi/demultiplexer with bends at both extremities. Optics Communications, 111(1-2), 43-50. External link

Auger, P. L., & Najafi, S. I. (1994). Potassium- and silver-double-ion-exchanged slab glass waveguides: characterization and modeling. Applied Optics, 33(16), 3333-3337. External link

B

Blanc, D., Pelissier, S., Najafi, S. I., & Andrews, M. P. (1999, September). Efficient surface gratings in hybrid sol-gel glasses [Paper]. Optical devices for fiber communication. Conference, Boston, MA, USA. External link

Blanc, D., Pelissier, S., Saravanamuttu, K., Najafi, S. I., & Andrews, M. P. (1999). Self-Processing of Surface-Relief Gratings in Photosensitive Hybrid Sol-Gel Glasses. Advanced Materials, 11(18), 1508-1511. External link

C

Coudray, P., Etienne, P., Porque, J., Moreau, Y., & Najafi, S. I. (1998, January). Integrated optical devices achieved by sol-gel process [Paper]. Integrated Optic Devices II, San Jose CA, USA. External link

Coudray, P., Etienne, P., Moreau, Y., Porque, J., & Najafi, S. I. (1997). Sol-gel channel waveguide on silicon: fast direct imprinting and low cost fabrication. Optics Communications, 143(4-6), 199-202. External link

Coudray, P., Chisham, J., Andrews, M. P., & Najafi, S. I. (1997). Ultraviolet light imprinted sol-gel silica glass low-loss waveguides for use at 1.55 um. Optical Engineering, 36(4), 1234-1240. External link

Chisham, J. E., Andrews, M. P., Li, C.-Y., Najafi, S. I., & Malek-Tabrizi, A. Gratings fabrication by ultraviolet light imprinting and embossing in a sol-gel silica glas [Paper]. Functional Photonic and Fiber Devices. External link

Coudray, P., Chisham, J., Malek-Tabrizi, A., Li, C.-Y., Andrews, M. P., Peyghambarian, N., & Najafi, S. I. (1996). Ultraviolet light imprinted sol-gel silica glass waveguide devices on silicon. Optics Communications, 128(1-3), 19-22. External link

Coudray, P., Chisham, J. E., Malek-Tabrizi, A., Li, C.-Y., Andrews, M. P., & Najafi, S. I. (1996, January). UV-light-imprinted sol-gel silica glass waveguide 1x8 beam splitter on silicon [Paper]. Functional Photonic and Fiber Devices, San Jose, CA, USA. External link

Chen, J. Y., & Najafi, S. I. (1994). Adiabatic polymer-glass-waveguide all-optical-switch. Applied Optics, 33(16), 3375-3383. External link

Chen, J. Y., & Najafi, S. I. (1994, April). Y-branch polymer-glass-waveguide all-optical switch [Paper]. Linear and Nonlinear Integrated Optics, Lindau, Germany. External link

D

Dalacu, D., Brown, A. C., Sapieha, J.-E., Martinu, L., Wertheimer, M. R., Najafi, S. I., & Andrews, M. A. (1998, November). Characterization of plasma-deposited Au/fluoropolymer nanocomposite films for nonlinear optical application [Paper]. 1998 MRS Fall Meeting: Symposium on Plasma Deposition and Treatment of Polymers, Boston, MA. Published in Materials Research Society Symposium - Proceedings, 544. External link

Du, X. M., Touam, T., Degachi, L., Guilbault, J. L., Andrews, M. P., & Najafi, S. I. (1998). Sol-Gel Waveguide Fabrication Parameters: an Experimental Investigation. Optical Engineering, 37(4), 1101-1104. External link

F

Farfad, M. A., Najafi, S. I., & Andrews, M. P. (2000). Solvent-assisted lithographic process using photosensitive sol-gel derived glass for depositing ridge waveguides on silicon. (Patent no. US6054253). External link

Fardad, A., Andrews, M., Milova, G., Malek-Tabrizi, A., & Najafi, S. I. (1998). Fabrication of Ridge Waveguides: a New Solgel Route. Applied Optics, 37(12), 2429-2434. External link

Fardad, M. A. (1998, January). SBN photonic devices [Paper]. Integrated Optic Devices II, San Jose CA, USA. External link

Fournier, P., Meshkinfam, P., Fardad, M. A., Andrews, M. P., & Najafi, S. I. (1997, May). Potassium ion-exchanged Er-doped phosphate glass integrated optics amplifier [Paper]. 1997 Conference on Lasers and Electro-Optics, CLEO, Baltimore, MD, USA. External link

Fardad, M. A., Touam, T., Meshkinfam, P., Sara, R., Du, X. M., Andrews, M. P., & Najafi, S. I. (1997). UV-light imprinted Bragg grating in sol-gel ridge glass waveguide with almost 100% reflectivity. Electronics Letters, 33(12), 1069-1070. External link

Fardad, M. A., Andrews, M. P., & Najafi, S. I. Novel sol-gel fabrication of integrated optical waveguides [Paper]. Integrated Optics Devices : Potential for Commercialization. External link

François, V., Ohtsuki, T., Peyghambarian, N., & Najafi, S. I. (1995, February). Fabrication and characterization of ion-exchanged neodymium-doped glass waveguide lasers [Paper]. Functional Photonic Integrated Circuits, San Jose, CA, USA. External link

François, V., Ohtsuki, T., Peyghambarian, N., & Najafi, S. I. (1995). Length optimization of single-mode rare-earth doped waveguides using saturated absorption. IEEE Photonics Technology Letters, 7(8), 872-874. External link

François, V., Ohtsuki, T., Peyghambarian, N., & Najafi, S. I. (1995). Thermally silver ion exchanged integrated-optic lasers in neodymium-doped silicate glass. Optics Communications, 119(1-2), 104-108. External link

François, V., Najafi, S. I., Ohtsuki, T., Peygambarian, N., Honkanen, S., Lafrenière, S., & Andrews, M. P. Progress toward realization of rare-earth-doped glass integrated-optics lasers [Paper]. Nanofabrication Technologies and Device Integration. External link

G

Gurney, J. A., Vargas-Baca, I., Andrews, M. P., Brown, A. C., & Najafi, S. I. (1998, July). Azo-dye hybrid sol-gel glass composites for optoelectronics [Paper]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. External link

Guerreiro, P. T., Lee, S. G., Rodrigues, A. S., Hu, Y. Z., Wright, E. M., Najafi, S. I., Mackenzie, J., & Peyghambarian, N. (1996). Femtosecond pulse propagation near a two-photon transition in a semiconductor quantum-dot waveguide. Optics Letters, 21(9), 659-661. External link

Guangwen, Z., Honkanen, S., Najafi, S. I., Tervonen, A., & Katila, P. (1994). Ion-exchanged glass waveguide Mach-Zehnder interferometers for wavelength multi/demultiplexing and the effect of thermal post-annealing on spectral transmission. Pure and Applied Optics, 3(5), 907-913. External link

H

Honkanen, S., Ohtsuki, T., Jiang, S., Najafi, S. I., & Peyghambarian, N. (1997, February). High Er concentration phosphate glasses for planar waveguide amplifiers [Paper]. Rare-earth-doped devices. Conference, San Jose, CA, USA. External link

Hatami-Hanza, H., & Najafi, S. I. (1997, February). Photon manipulation by means of passive integrated optic circuits [Paper]. Integrated Optics Devices : Potential for Commercialization, San Jose, CA. External link

I

Ingenhoff, J., Lefebvre, P., Zhang, W. G., Li, C.-Y., Ross, L., & Najafi, S. I. (1995, February). Minimizing losses in silver ion-exchanged waveguides using a double ion-exchange process [Paper]. Functional Photonic Integrated Circuits, San Jose, CA, USA. External link

K

Khazaei, H. R., Wang, W. J., Berolo, E., & Ghannouchi, F. M. (1998, January). High speed GaAs/AlGaAs traveling wave electro-optic modulators [Paper]. Integrated Optic Devices II, San Jose CA, USA. External link

L

Li, C.-Y., Ingenhoff, J., Najafi, S. I., Chisham, J., MacLachlan, M., Andrews, M. P., Kao, Y.-H., Mackenzie, J. D., Ohtsuki, T., & Peyghambarian, N. (1995, February). Er-doped sol-gel glasses for integrated optics [Paper]. Optoelectronic Integrated Circuit Materials, Physics, and Devices, San Jose, CA, USA. External link

Li, C.-Y., Chisham, J., Andrews, M., Najafi, S. I., Mackenzie, J. D., & Peyghambarian, N. (1995). Sol-gel integrated optical coupler by ultraviolet light imprinting. Electronics Letters, 31(4), 271-272. External link

Li, C.-Y., Kao, Y.-H., Hayashi, K., Takada, T., Mackenzie, J. D., Kang, K.-I., Lee, S.-G., Peyghambarian, N., Yamane, M., Zhang, G.-W., & Najafi, S. I. (1994, July). Improving CdS quantum dot materials by the sol-gel method [Paper]. Sol-Gel Optics III, San Diego, CA, United states. External link

Lamouche, G., & Najafi, S. I. (1990). Theoretical study of optical behavior of glass waveguides with grating. Proceedings of SPIE, 1 page. External link

Lamouche, G., & Najafi, S. I. (1989, April). Finite-Element Analysis Of Ion-Exchanged Channel Waveguides [Paper]. International Congress on Optical Science and Engineering, Paris, France. External link

M

Moujoud, A., Saddiki, Z., Touam, T., & Najafi, S. I. (2002). Measurement of the refractive-index variations with temperature of hybrid sol-gel glasses. Thin Solid Films, 422(1-2), 161-165. External link

Mashayekhi, M., Touam, T., Wang, W., Berolo, E., & Najafi, S. I. (1997, February). Diode laser array to optical fiber multiplexing via glass waveguide [Paper]. Integrated Optics Devices : Potential for Commercialization, San Jose, CA, USA. External link

Meshkinfam, P., Fournier, P., Fardad, M. A., Andrews, M. P., & Najafi, S. I. (1997, February). Integrated optics Er:Yb amplifier with potassium ion-exchanged glass waveguides [Paper]. Integrated Optics Devices : Potential for Commercialization, San Jose, CA, USA. External link

Mashayekhi, M., Touam, T., Wang, W. J., Berolo, E., & Najafi, S. I. (1997). Semiconductor device to optical fiber coupling using low-loss glass taper waveguide. Optical Engineering, 36(12), 3476-3477. External link

Milova, G., Najafi, S. I., Skirtach, A., Simkin, D., & Andrews, M. P. Erbium in photosensitive hybrid organoaluminosilicate sol-gel glasses [Paper]. Integrated Optics Devices : Potential for Commercialization. External link

Malek-Tabrizi, A., Najafi, S. I., & Martinu, L. (1996, January). Glass integrated optics symmetric and nonsymmetric Mach-Zehnder interferometer sensors [Paper]. Functional Photonic and Fiber Devices, San Jose, CA, USA. External link

N

Najafi, S. I., Touam, T., & Shooshtari, A. (1998, June). Beam propagation method for analysis of Er-doped integrated optics devices [Paper]. 10th Innovative light emitting materials. Topical symposium & 9th CIMTECH-World ceramics congress and forum on new materials, Florence, Italy. Published in Advances in science and technology. Unavailable

Najafi, S. I. (1998, January). Glass integrated optics : 30 years of R & D [Paper]. Integrated Optic Devices II, San Jose CA, USA. External link

Najafi, S. I. (1998). Integrated Optics. Optical Engineering, 37(4), 1100-1100. External link

Najafi, S. I., Touam, T., Sara, R., Andrews, M. P., & Fardad, M. A. (1998). Sol-Gel Glass Waveguide and Grating on Silicon. Journal of Lightwave Technology, 16(9), 1640-1646. External link

Najafi, S. I. (1997, February). Overview of Nd- and Er-doped glass integrated optics amplifiers and lasers [Paper]. Rare-earth-doped devices. Conference, San Jose, CA, USA. External link

Najafi, S. I., Li, C.-Y., Chisham, J. E., Andrews, M. P., Coudray, P., Malek-Tabrizi, A., & Peyghambarian, N. (1996, January). Ultraviolet-light-imprinted sol-gel silica glass channel waveguides on silicon [Paper]. Functional Photonic and Fiber Devices, San Jose, CA, USA. External link

Najafi, S. I., Andrews, M. P., Fardad, M. A., Milova, G., Tahar, T., & Coudray, P. (1996, October). UV-light imprinted surface, ridge and buried sol-gel glass waveguides and devices on silicon [Paper]. Fiber integrated optics. Conference, Berlin, DEU. External link

Najafi, S. I., Li, C.-Y., Andrews, M. P., Chisham, J., Lefebvre, P., Mackenzie, J. D., & Peyghambarian, N. (1995, February). Integrated optics devices by ultraviolet light imprinting in sol-gel silica glass [Paper]. Functional Photonic Integrated Circuits, San Jose, CA, USA. External link

Najafi, S. I., & Fallahi, M. Circular grating surface emitting lasers [Paper]. Nanofabrication Technologies and Device Integration. External link

Najafi, S. I. (1994, January). Circular gratings and applications in integrated optics/optoelectronics [Paper]. Nonlinear Optics for High-Speed Electronics and Optical Frequency Conversion, Los Angeles, CA, USA. External link

Najafi, S. I., Gomez-Reino, C., & Fujii, Y. (1994). GRIN '92: gradient-index optical systems. Applied Optics, 33(16), 3331-3332. External link

Najafi, S. I., Fallahi, M., Lefebvre, P., François, V., & Templeton, I. M. Integrated optical tap-power-divider [Paper]. Nanofabrication Technologies and Device Integration. External link

Najafi, S. I., Honkanen, S., & Tervonen, A. (1994, July). Recent progress in glass integrated optical circuits [Paper]. Integrated Optics and Microstructures II, San Diego, CA, USA. External link

Najafi, S. I. (1993, January). Attachment of optical fiber to integrated optical devices [Paper]. Integrated Optics and Optoelectronics: A Critical Review, Los Angeles, CA. External link

O

Ohtsuki, T., Honkanen, S., Najafi, S. I., & Peyghambarian, N. (1997). Cooperative upconversion effects on the performance of er3+-doped phosphate glass waveguide amplifiers. Journal of the Optical Society of America. B, Optical Physics, 14(7), 1838-1845. External link

Ohtsuki, T., Peyghambarian, N., Honkanen, S., & Najafi, S. I. (1995). Gain characteristics of a high concentration Er³⁺ doped phosphate glass waveguide. Journal of Applied Physics, 78(6), 3617-3621. External link

P

Pelissier, S., Blanc Pelessier, D., Najafi, S. I., & Andrews, M. P. (2001). Self-processing of diffractive optical components in hybrid sol-gel glasses. (Patent Application no. WO2001031401). External link

Pelissier, S., Blanc, D., Andrews, M. P., Najafi, S. I., Tishchenko, A. V., & Parriaux, O. (1999). Single-Step Uv Recording of Sinusoidal Surface Gratings in Hybrid Solgel Glasses. Applied Optics, 38(32), 6744-6748. External link

Peyghambarian, N., Tajalli, H., Wright, E. M., Koch, S. W., Najafi, S. I., Hulin, D., & Mackenzie, J. D. (1994, July). Quantum dot glass integrated optical devices [Paper]. Glass Integrated Optics and Optical Fiber Devices: A Critical Review, San Diego, CA, USA. External link

R

Rahmani, S., Touam, T., Andrews, M. P., & Najafi, S. I. (1998, July). Polyglass integrated photonic devices [Paper]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. External link

S

Shooshtari, A., Touam, T., Safavi-Naeini, S., & Najafi, S. I. (2000). Beam propagation method for analysis of er-doped integrated optics devices. Optical Engineering, 39(3), 735-737. External link

Shooshtari, A., Meshkinfam, P., Touam, T., Andrews, M. P., & Najafi, S. I. (1998). Ion-Exchanged Er/Yb Phosphate Glass Waveguide Amplifiers and Lasers. Optical Engineering, 37(4), 1188-1192. External link

Saravanamuttu, K., Du, X. M., Najafi, S. I., & Andrews, M. P. (1998). Photoinduced Structural Relaxation and Densification in Sol- Gel-Derived Nanocomposite Thin Films: Implications for Integrated Optics Device Fabrication. Canadian Journal of Chemistry, 76(11), 1717-1729. External link

Sara, R., Touam, T., Blanchetiere, C., Saddiki, Z., Saravanamuttu, K., Du, X. M., Chrostowski, J., Andrews, M. P., & Najafi, S. I. (1998, July). Photolithography fabrication of sol-gel ridge waveguides [Paper]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. External link

Sara, R., Touam, T., Coudray, P., Andrews, M. P., & Najafi, S. I. (1998, July). Polyglass integrated optics devices for lightwave communication [Paper]. Organic-Inorganic Hybrid Materials for Photonics, San Diego, CA, USA. External link

Shooshtari, A., Touam, T., & Najafi, S. I. (1998). Yb3+ Sensitized Er3+-Doped Waveguide Amplifiers: a Theoretical Approach. Optical and Quantum Electronics, 30(4), 249-264. External link

Seguin, F., & Najafi, S. I. (1996, January). Spectral technique for the simultaneous measurement of pressure and temperature [Paper]. Functional Photonic and Fiber Devices, San Jose, CA, USA. External link

Saarinen, J., Huttunen, J., Honkanen, S., & Najafi, S. I. (1994). Double-ion-exchange process in glass for the fabrication of computer-generated waveguide holograms. Applied Optics, 33(16), 3353-3359. External link

Saarinen, J., Honkanen, S., Zhang, G.-W., & Najafi, S. I. Modified double ion-exchange method for the fabrication of phase gratings in glass waveguides [Paper]. Nanofabrication Technologies and Device Integration. External link

Sriram, S., Lamouche, G., & Najafi, S. I. (1990, July). Accurate analysis of ordinary and grating-assisted ion-exchanged glass waveguides [Paper]. Optoelectronic Devices and Applications, San Diego, CA, USA (10 pages). External link

T

Touam, T., Sara, R., Andrews, M. P., & Najafi, S. I. (1998, June). Photoinscribed waveguides, devices, and gratings in polyglass on silicon [Paper]. International Optical Design Conference 1998, Kona, HI, USA. External link

Touam, T., Du, X. M., Fardad, M. A., Andrews, M. P., & Najafi, S. I. (1998). Sol-Gel Glass Waveguides With Bragg Grating. Optical Engineering, 37(4), 1136-1142. External link

Touam, T., Du, X. M., Fardad, M. A., Andrews, M. P., & Najafi, S. I. (1998, January). Theoretical and experimental study of ridge waveguides with Bragg grating derived from hybrid sol-gel glasses [Paper]. Photosensitive Optical Materials and Devices II, San Jose, CA, USA. External link

Touam, T., Milova, G., Saddiki, Z., Fardad, M. A., Andrews, M. P., Chrostowski, J., & Najafi, S. I. (1997). Organoaluminophosphate sol-gel silica glass thin films for integrated optics. Thin Solid Films, 307(1), 203-207. External link

Touam, T., & Najafi, S. I. (1997). Symmetric profile beams from waveguides with asymmetric grating couplers. Applied Optics, 36(12), 2554-2558. External link

Touam, T., & Najafi, S. I. (1996, January). Accurate analysis of reflective and diffractive gratings for integrated optics [Paper]. Functional Photonic and Fiber Devices, San Jose, CA, USA. External link

Touam, T., Wu, C., Bélanger, M., Currie, J. F., & Najafi, S. I. (1988, September). Planar gaas Zn-diffused waveguides: fabrication, characterization and analysis [Paper]. SPIE Integrated Optical Circuit Engineering VI, Boston, MA, United states. External link

W

Wu, C., Svilans, M., Makino, T., Glinski, J., Blaauw, C., Maritan, C., Knight, D. G., Fallahi, M., Templeton, I., Maciejko, R., & Najafi, S. I. (1992, April). Circular Grating Surface-Emitting Laser [Paper]. Integrated Photonics Research 1992, New Orleans, Louisiana, USA. External link

Z

Zhang, G.-W., Honkanen, S., Najafi, S. I., Tervonen, A., & Katila, P. Effect of thermal post-annealing on spectral transmission of 0.807/1.3 um, 1.48/1.55 um, and 1.3/1.55 um ion-exchanged Mach-Zehnder interferometer wavelength demultiplexers/multiplexers [Paper]. Nanofabrication Technologies and Device Integration. External link

Zhang, H., Schwelb, O., Li Ming, J., & Najafi, S. I. (1994). Fully planar proton-exchanged lithium niobate waveguides with grating taps. Applied Optics, 33(16), 3391-3393. External link

Zhang, G.-W., Honkanen, S., Najafi, S. I., & Tervonen, A. Glass integrated optics circuit for 1.3/1.55 micrometer optical communication system [Paper]. Nanofabrication Technologies and Device Integration. External link

Zhang, G., Honkanen, S., Tervonen, A., Wu, C.-M., & Najafi, S. I. (1994). Glass integrated optics circuit for 1.48/1.55- and 1.30/1.55-&mu;m wavelength division multiplexing and 1/8 splitting. Applied Optics, 33(16), 3371-3374. External link

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