Author Publications

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Number of items: 87.

2014

Vázquez-Córdova, Sergio A. and Dijkstra, Meindert and Bernhardi, Edward H. and Ay, Feridun and Wörhoff, Kerstin and Herek, Jennifer L. and Garcia-Blanco, Sonia M. and Pollnau, Markus (2014) Erbium-doped spiral amplifiers with 20 dB of net gain on silicon. Optics express, 22 (21). pp. 25993-26004. ISSN 1094-4087

2013

Ay, F. and Pollnau, M. (2013) Focused-ion-beam nano-structuring of photonic cavities in dielectric materials. In: Energy Materials Nanotechnology East Meeting, 7-10 Septemer 2013, Beijing, China (pp. pp. 38-39).

2012

Ay, Feridun and Geskus, Dimitri and Aravazhi, Shanmugam and Pollnau, Markus (2012) Realization of on-chip lasers in crystalline double tungstate waveguides using focused-ion-beam nanostructuring. In: 8th Nanoscience and Nanotechnology Congress, Nano-TR VIII 2012, 25-29 June 2012, Ankara, Turkey (pp. Paper OP-113).

Ay, Feridun and Wörhoff, Kerstin and Ridder, René M. de and Pollnau, Markus (2012) Focused-ion-beam nanostructuring of Al$_{2}$O$_{3}$ dielectric layers for photonic applications. Journal of Micromechanics and Microengineering, 22 (10). p. 105008. ISSN 0960-1317

Pollnau, M. and Bradley, J.D.B. and Bernhardi, E.H. and Agazzi, L. and Geskus, D. and Dalfsen, K. van and Yang, J. and Ay, F. and Driessen, A. and García-Blanco, S.M. and Wörhoff, K. and Ridder, R.M. de (2012) On-chip integrated amplifiers and lasers utilizing rare-earth-ion activation. In: 8th Nanoscience and Nanotechnology Congress, Nano-TR VIII 2012, 25-29 June 2012, Ankara, Turkey.

2011

Agazzi, L. and Akça, I. and Aravazhi, S. and Ay, F. and Bernhardi, E.H. and Çivitci, F. and Dalfsen, K. van and Dijkstra, M. and Garcia Blanco, S.M. and Geskus, D. and Hammer, M. and Hoekstra, H.J.W.M. and Hollink, A.J.F. and Ismail, N. and Pham, S. Van and Ridder, R.M. de and Sengo, G. and Wörhoff, K. and Pollnau, M. (2011) Integrated optical microsystems: guiding light into the future. Focus Magazine, 41 (4). pp. 10-13.

Agazzi, L. and Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2011) Presence of fast quenching mechanisms in Al2O3:Er3+. In: 16th International Conference on Luminescence & Optical Sperctroscopy of Condensed Matter, 26 June - 1 July 2011, Ann Arbor, MI, USA (pp. p. 10).

Agazzi, L. and Bradley, J.D.B. and Yang, Jing and Ay, F. and Wörhoff, K. and Pollnau, M. (2011) Er3+ and Nd3+ doped Al2O3 amplifiers on a silicon chip. In: International Laser Physics Workshop, 11-15 July 2011, Sarajevo, Bosnia and Herzegovina (pp. Paper 4.2.5).

Ay, Feridun and Yang, Jing and Lamprecht, Tobias and Wörhoff, Kerstin and Garcia Blanco, Sonia M. and Driessen, Alfred and Horst, Folkert and Offrein, Bert J. and Pollnau, Markus (2011) Nd-doped waveguide amplifiers for heterogeneous integration in optical backplanes. In: Optoelectronic Integrated Circuits XIII, 22-27 Jan 2011, San Francisco, California, USA (pp. Q1-Q8).

Ay, F. and Geskus, D. and Iñurrategui, I. and Aravazhi, S. and Pollnau, M. (2011) Focused-ion-beam nanostructured photonic cavities for integrated lasers in crystalline double tungstate channel waveguides. In: Conference on Lasers and Electro-Optics, CLEO/Europe, 22-26 May 2011, Munich, Germany (pp. Paper CK8.3).

Ay, F. and Inurrategui, I. and Geskus, D. and Aravazhi, S. and Pollnau, M. (2011) Integrated lasers in crystalline double tungstates with focused-ion-beam nanostructured photonic cavities. Laser Physics Letters, 8 (6). pp. 423-430. ISSN 1612-2011

Ay, Feridun and Gadgil, Vishwas J. and Geskus, Dimitri and Aravazhi, Shanmugam and Wörhoff, Kerstin and Pollnau, Markus (2011) Application of focused ion beam technology for photonic nanostructures. In: 2011 NSTI Nanotechnology Conference & Expo - Nanotech 2011, 13-16 June 2011, Boston, Massachusetts (pp. pp. 200-203).

Dalfsen, K. van and Geskus, D. and Ay, F. and Wörhoff, K. and Aravazhi, S. and Pollnau, M. (2011) High-power Yb- and Tm-doped double tungstate channel waveguide lasers. In: International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, 28 August - 1 September 2011, Sydney, Australia (pp. Paper 5420).

Dalfsen, K. van and Geskus, D. and Ay, F. and Wörhoff, K. and Aravazhi, S. and Pollnau, M. (2011) High-power Yb- and Tm-doped double tungstate channel waveguide lasers. In: International Laser Physics Workshop, 11-15 July 2011, Sarajevo, Bosnia and Herzegovina (pp. Paper 4.4.4).

Garcia Blanco, Sonia M. and Geskus, Dimitri and Dalfsen, Koop van and Ay, Feridun and Aravazhi, Shanmugam and Pollnau, Markus (2011) Monoclinic double tungstate waveguide amplifiers and microlasers. In: International Conference on Transparent Optical Networks, ICTON 2011, 26-30 June 2011, Stockholm, Sweden.

Wörhoff, Kerstin and Bernhardi, Edward H. and Bradley, Jonathan D.B. and Yang, Jing and Agazzi, Laura and Ay, Feridun and Ridder, René M. de and Pollnau, Markus (2011) Rare-earth-ion doped amplifiers and lasers integrated on silicon. In: 13th International Conference on Transparent Optical Networks, ICTON 2011, 26-30 June 2011, Stockholm, Sweden.

Yang, J. and Lamprecht, T. and Wörhoff, K. and Driessen, A. and Horst, F. and Offrein, B.J. and Ay, F. and Pollnau, M. (2011) Integrated waveguide amplifiers for optical backplanes. In: International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, 28 August - 1 September 2011, Sydney, Australia (pp. Paper 4630).

Yang, Jing and Lamprecht, Tobias and Wörhoff, Kerstin and Driessen, Alfred and Horst, Folkert and Offrein, Bert J. and Ay, Feridun and Pollnau, Markus (2011) Integrated optical backplane amplifier. IEEE Journal of Selected Topics in Quantum Electronics . ISSN 1077-260X

2010

Agazzi, L. and Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Al2O3:Er3+ waveguide amplifiers at 1.5 μm. In: 15th European Conference on Integrated Optics, ECIO 2010, 7-9 April 2010, Cambridge, United Kingdom (pp. ThE2).

Agazzi, L. and Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Understanding Al2O3:Er3+ device performance. In: Annual Symposium of the IEEE Photonics Benelux Chapter 2010, 18-19 November 2010, Delft, The Netherlands (pp. pp. 261-264).

Agazzi, L. and Bradley, J.D.B. and Roelkens, G. and Baets, R. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Wafer-scale monolithic integration of Al2O3:Er amplifiers with Si waveguides. In: Conference on Lasers and Electro-Optics, CLEO '10, 16-21 May 2010, San Jose, CA (pp. JWA92).

Agazzi, Laura and Bradley, Jonathan D.B. and Dijkstra, Meindert and Ay, Feridun and Roelkens, Gunther and Baets, Roel and Wörhoff, Kerstin and Pollnau, Markus (2010) Monolithic integration of erbium-doped amplifiers with silicon-on-insulator waveguides. Optics Express, 18 (26). pp. 27703-27711. ISSN 1094-4087

Ay, F. and Bernhardi, E.H. and Agazzi, L. and Bradley, J.D.B. and Wörhoff, K. and Pollnau, M. and Ridder, R.M. de (2010) Characterization of Bragg gratings in Al2O3 waveguides fabricated by focused ion beam milling and laser interference lithography. In: Conference on Lasers and Electro-Optics, CLEO '10, 16-21 May 2010, San Jose, CA (pp. CMQ4).

Ay, Feridun and Geskus, Dimitri and Inurrategui, Ion and Aravazhi, Shanmugam and Gadgil, Vishwas J. and Wörhoff, Kerstin and Pollnau, Markus (2010) Focused Ion Beam Nanostructured Gratings in Crystalline KYW:$Yb^{3+}$ Channel Waveguides. In: Annual Symposium of the IEEE Photonics Benelux Chapter 2010, 18-19 November 2010, Delft, The Netherlands (pp. pp. 265-268).

Ay, Feridun and Ridder, R.M. de and Pollnau, M. (2010) Focused Ion Beam Nano-structuring for Applications in Photonics. In: International Workshop in Cleanroom Training, UNAM 2010, 21 June - 4 July 2010, Ankara, Turkey (pp. p. 384).

Ay, Feridun and Yang, Jing and Lamprecht, Tobias and Wörhoff, Kerstin and Offrein, Bert Jan and Pollnau, Markus (2010) Optical Waveguide Amplifiers for Heterogeneous Integration in Optical Backplanes. In: IEEE Photonics Society Annual Meeting, 7-11 Nov 2010, Denver, CO (pp. pp. 110-111).

Bradley, J.D.B. and Agazzi, L. and Ay, F. and Wörhoff, K. and Pollnau, M. and Stoffer, R. (2010) Widely wavelength-selective Al2O3:Er3+ ring laser. In: 15th European Conference on Integrated Optics, ECIO 2010, 7-9 April 2010, Cambridge, United Kingdom (pp. ThE3).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Gain bandwidth of 80 nm and 2 dB/cm peak gain in Al2O3:Er3+ optical amplifiers on silicon. Journal of the Optical Society of America B (Optical physics), 27 (2). pp. 187-196. ISSN 0740-3224

Bradley, J.D.B. and Stoffer, R. and Agazzi, L. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Integrated $Al_2O_3:Er^{3+}$ ring lasers on silicon with wide wavelength selectivity. Optics Letters, 35 (1). pp. 73-75. ISSN 0146-9592

Bradley, J.D.B. and Stoffer, R. and Agazzi, L. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Widely wavelength-selective integrated ring laser in Al2O3:Er. In: Conference on Lasers and Electro-Optics, CLEO '10, 16-21 May 2010, San Jose, CA (pp. CMQ2).

Bradley, Jonathan D.B. and Stoffer, Remco and Bakker, Arjen and Agazzi, Laura and Ay, Feridun and Wörhoff, Kerstin and Pollnau, Markus (2010) Integrated Al2O3:Er3+ zero-loss optical amplifier and power splitter with 40 nm bandwidth. IEEE Photonics Technology Letters, 22 (5). pp. 278-280. ISSN 1041-1135

Dalfsen, K. van and Yang, J. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Nd-doped aluminum oxide integrated amplifiers at 880 nm, 1060 nm, and 1330 nm. In: 15th European Conference on Integrated Optics, ECIO 2010, 7-9 April 2010, Cambridge, United Kingdom (pp. ThP34).

Inurrategi, I. and Ay, F. and Geskus, D. and Aravazhi, S. and Gadgil, V.J. and Wörhoff, K. and Pollnau, M. (2010) Bragg Gratings in Crystalline Waveguides Fabricated by Focused Ion Beam Milling. In: 2nd International Workshop on FIB for Photonics, 6-7 Apr 2010, Cambridge, UK (pp. pp. 8-9).

Pollnau, M. and Bradley, J.D.B. and Ay, F. and Bernhardi, E.H. and Ridder, R.M. de and Wörhoff, K. (2010) On-chip integrated lasers in Al2O3:Er on silicon. In: Optoelectronic Integrated Circuits XII. Proceedings of the SPIE, 7605 . SPIE, the international Society for Optical Engineering, Bellingham, WA, USA, 76050M. ISBN 9780819480019

Pollnau, M. and Bradley, J.D.B. and Bernhardi, E.H. and Ay, F. and Ridder, R.M. de and Wörhoff, K. (2010) Integrated amplifiers and lasers in Al2O3:Er3+ thin films on a silicon chip. In: IV International Workshop on Photonic and Electronic Materials, 5-7 July 2010, San Sebastian, Spain (pp. p. 44).

Yang, J. and Dalfsen, K. van and Wörhoff, K. and Ay, F. and Pollnau, M. (2010) High-Gain Al2O3:Nd3+ Integrated Waveguide Amplifiers. In: Symposium K: Rare earth doped materials for optical based technologies, 7-11 June 2010, Strasbourg (pp. p. 53).

Yang, J. and Dalfsen, K. van and Wörhoff, K. and Ay, F. and Pollnau, M. (2010) High-gain Al2O3:Nd3+ channel waveguide amplifiers at 880 nm, 1060 nm and 1330 nm. Applied physics B: Lasers and optics, 101 (1-2). pp. 119-127. ISSN 0946-2171

Yang, J. and Ay, F. and Lamprecht, T. and Horst, F. and Offrein, B.J. and Driessen, A. and Wörhoff, K. and Pollnau, M. (2010) Al2O3:Nd3+ waveguide amplifiers for use in optical backplanes. In: Conference on Lasers and Electro-Optics, CLEO '10, 16-21 May 2010, San Jose, CA (pp. CWP4).

2009

Agazzi, L. and Bradley, J.D.B. and Ay, F. and Kahn, A. and Scheife, H. and Huber, G. and Ridder, R.M. de and Wörhoff, K. and Pollnau, M. (2009) Energy Migration Governs Upconversion Losses in Er3+-doped Integrated Amplifiers. In: Conference on Lasers and Electro-Optics Europe, 14-19 June 2009, Munich, Germany.

Ay, F. and Bradley, J.D.B. and Wörhoff, K. and Ridder, R.M. de and Pollnau, M. (2009) Optical performance investigation of focused ion beam nanostructured integrated Fabry-Perot microcavities in Al$_2$O$_3$. In: European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference, CLEO Europe - EQEC 2009, 14-19 June 2009, Munich, Germany (pp. CK.P.1 MON).

Ay, F. and Kauppinen, L.J. and Bradley, J.D.B. and Wörhoff, K. and Ridder, R.M. de and Pollnau, M. (2009) Focused ion beam milled on-chip resonator nanostructures for applications in rare-earth-ion-doped Al2O3 active waveguides. In: LEOS Annual Meeting Conference, LEOS '09, 4-8 Oct. 2009, Belek-Antalya, Turkey (pp. pp. 379-380).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. (2009) 2.0 dB/cm gain in an Al$_2$O$_3$:Er$^{3+}$ waveguide on silicon. In: Conference on Lasers and Electro-Optics, 2-4 June 2009, Baltimore, Maryland, USA (pp. CThCC2).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. (2009) Higher gain in 977-nm-pumped Al$_2$O$_3$:Er$^{3+}$ integrated optical amplifiers. In: European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference, CLEO Europe - EQEC 2009, 14-19 June 2009, Munich, Germany (pp. CE1.4 MON).

Bradley, J.D.B. and Stoffer, R. and Agazzi, L. and Ay, F. and Wörhoff, K. and Pollnau, M. (2009) Al2O3:Er3+ as a broad gain medium for 1.53-um integrated optical applications. In: 2009 Annual Symposium of the IEEE Photonics Benelux Chapter, 5-6 November 2009, Brussels, Belgium (pp. pp. 13-16).

Bradley, Jonathan D.B. and Agazzi, Laura and Ay, Feridun and Wörhoff, Kerstin and Pollnau, Markus (2009) High-performance Al$_2$O$_3$:Er$^{3+}$ integrated optical amplifiers. In: 18th International Laser Physics Workshop, 13-17 July 2009, Barcelona, Spain (pp. 8.3.5).

Dalfsen, K. van and Yang, J. and Ay, F. and Wörhoff, K. and Pollnau, M. (2009) Neodymium-doped Al2O3 Channel Waveguide Amplifiers. In: 2009 Annual Symposium of the IEEE Photonics Benelux Chapter, 5-6 November 2009, Brussels, Belgium (pp. pp. 149-152).

Pollnau, M. and Bradley, J.D.B. and Agazzi, L. and Bernhardi, E.H. and Ay, F. and Wörhoff, K. and Ridder, R.M. de (2009) $Al2O3:Er^3^+$ as a new platform for active integrated optics. In: 11th International Conference on Transparent Optical Networks, ICTON 2009, June 28 - July 2, 2009, Azores (pp. We.D2.1).

Wörhoff, Kerstin and Bradley, Jonathan D.B. and Ay, Feridun and Geskus, Dimitri and Blauwendraat, Tom P. and Pollnau, Markus (2009) Reliable low-cost fabrication of low-loss $Al_2O_3:Er^{3+}$ waveguides with 5.4-dB optical gain. IEEE Journal of Quantum Electronics, 45 (5). pp. 454-461. ISSN 0018-9197

2008

Agazzi, L. and Bradley, J.D.B. and Ay, F. and Kahn, A. and Scheife, H. and Petermann, K. and Huber, G. and Ridder, R.M. de and Wörhoff, K. and Pollnau, M. (2008) Upconversion spectroscopy of $Al_2O_3:Er^{3+}$. In: IEEE/LEOS Benelux Chapter, 13th Annual Symposium, 27-28 Nov. 2008, Enschede, The Netherlands (pp. pp. 51-53).

Agazzi, L. and Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2008) Spectroscopy and gain in $Al_2O_3:Er$ waveguides. In: International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, 7-11 July 2008, Lyon, France (pp. Paper TuA2-O2).

Ay, F. and Bradley, J.D.B. and Ridder, R.M. de and Wörhoff, K. and Pollnau, M. (2008) Bragg gratings in $Al_2O_3$ Channel waveguides by focused ion beam milling. In: 13th Annual Symposium of the IEEE LEOS Benelux Chapter, 27-28 November 2008, Enschede, The Netherlands (pp. pp. 215-217).

Ay, Feridun and Uranga, Amaia and Bradley, Jonathan D.B. and Wörhoff, Kerstin and Ridder, René M. de and Pollnau, Markus (2008) Focused Ion Beam Nano-structuring of Bragg Gratings in Al2O3 Channel Waveguides. In: Proceedings of the First International Workshop on FIB for Photonics : Eindhoven, the Netherlands, 13-14 June 2008. University of Twente, Enschede, The Netherlands, pp. 48-51. ISBN 9789036526784

Ay, Feridun and Uranga, Amaia and Bradley, Jonathan D.B. and Wörhoff, Kerstin and Ridder, René M. de and Pollnau, Markus (2008) Focused ion beam nano-structuring of Bragg gratings in $Al_2O_3$ channel waveguides. In: First International Workshop on FIB for Photonics, 13-14 June 2008, Eindhoven, the Netherlands (pp. pp. 48-50).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. (2008) Reactively co-sputtered $Al_2O_3:Er^{3+}$ for active photonic devices. In: 2008 Annual Workshop of the IEEE LEOS Benelux Chapter "Materials, Devices and Systems in Optics and Photonics, 30-5-2008, Brussels, Belgium (pp. pp. 9-10).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. and Arnoldbik, W.M. (2008) Enhanced gain in Er-doped $Al_2O_3$ channel waveguide amplifiers. In: 13th Annual Symposium of the IEEE LEOS Benelux Chapter, 27-28 November 2008, Enschede, The Netherlands (pp. pp. 131-134).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Blauwendraat, T. and Ay, F. and Wörhoff, K. and Pollnau, M. (2008) Investigation of optical gain in $Al_2O_3:Er$ channel waveguide amplifiers. In: Technical Digest Conference on Lasers and Electro-Optics, CLEO 2008, 4-9 May 2008, San Jose, California, U.S.A. (pp. Paper JTuA30).

Bradley, J.D.B. and Geskus, D. and Blauwendraat, T. and Ay, F. and Wörhoff, K. and Pollnau, M. and Kahn, A. and Scheife, H. and Petermann, K. and Huber, G. (2008) Growth, micro-structuring, spectroscopy, and optical gain in as-deposited $Al_2O_3:Er$ waveguides. In: Conference Program and Technical Digest, Advanced Solid-State Photonics: Topical Meeting and Tabletop Exhibit, 27-30 January 2008, Nara, Japan (pp. Paper WB10).

Hopman, Wico C.L. and Ay, Feridun and Ridder, René M. de (2008) Focused ion beam milling strategy for sub-micrometre holes in silicon. In: First International Workshop on FIB for Photonics, 13-14 June 2008, Eindhoven, the Netherlands (pp. pp. 12-15).

Kahn, A. and Gün, T. and Ileri, B. and Kühn, H. and Petermann, K. and Huber, G. and Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. and Luo, Y. and Hoffmann, P. (2008) Mono-crystalline rare earth doped $(Gd, Lu)_2O_3$ waveguiding films produced by pulsed laser deposition and structured by reactive ion etching. In: Proceedings Conference on Lasers and Electro-Optics, CLEO 2008, 4-9 May 2008, San Jose, California, U.S.A. (pp. Paper CTuS1).

Kahn, A. and Kühn, H. and Heinrich, S. and Gün, T. and Tellkamp, F. and Petermann, K. and Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. and Kuzminykh, Y. and Luo, Y. and Hoffmann, P. and Huber, G. (2008) In-band pumping of expitaxially grown $Er:(Gd, Lu)_2O_3$ waveguides for active integrated optical devices. In: 3rd EPS-QEOD: Europhoton Conference on Solid-State and Fiber coherent Light sources, 31-8-2008 - 5-9-2008, Paris, France (pp. Paper THoD.2).

Ridder, Rene M. de and Ay, Feridun and Kauppinen, Lasse J. , eds. (2008) Proceedings of the First International Workshop on FIB for Photonics : Eindhoven, the Netherlands, 13-14 June 2008: collocated with the 14th European Conference on Integrated Optics (ECIO 2008). University of Twente, Enschede, The Netherlands. ISBN 9789036526784

Wörhoff, K. and Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Kahn, A. and Scheife, H. and Petermann, K. and Huber, G. and Pollnau, M. (2008) Energy-transfer upconversion in $Al_2O_3:Er^{3+}$ thin layers. In: Second International Workshop on Advanced Spectroscopy and Optical Materials, 13-17 July 2008, Gdansk, Poland (pp. Paper 6-O).

Wörhoff, Kerstin and Bradley, Jonathan and Ay, Feridun and Geskus, Dimitri and Blauwendraat, Tom and Pollnau, Markus (2008) Optimization of $Al_2O_3:Er^{3+}$ waveguide technology for active integrated optical devices. In: Silicon Photonics and Photonic Integrated Circuits, 7-10 April 2008, Strasbourg, France (pp. p. 699618).

2007

Ay, F. and Bradley, J.D.B. and Wörhoff, K. and Pollnau, M. (2007) Towards rare-earth-ion-doped $Al_2O_3$ active integrated optical devices. In: Abstract Collection Booklet of the 6th International Symposium on Modern Optics and Its Applications (ISMOA 2007), 6-10 August 2007, Bandung, Indonesia (pp. pp. 63-66).

Ay, Feridun and Bradley, Jonathan D.B. and Hopman, Wico C.L. and Gadgil, Vishwas J. and Ridder, René M. de and Wörhoff, Kerstin and Pollnau, Markus (2007) Focused ion beam nano-structuring of $Al_2O_3$ dielectric layers for photonic applications. In: 33rd International Conference on Micro- and Nano-Engineering 2007, 23-26 September 2007, Copenhagen, Denmark (pp. pp. 627-628).

Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2007) Low-loss rib waveguides in $Al_{2}O_{3}$ layers for active integrated optical devices. In: Digest of the Conference on Lasers and Electro-Optics Europe (CLEO/Europe-IQEC 2007), 17-22 June 2007, Munich, Germany (pp. CE7-6).

Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2007) Fabrication of low-loss channel waveguides in Al2O3 and Y2O3 layers by inductively coupled plasma reactive ion etching. Applied physics B: Lasers and optics, 89 (2-3). pp. 311-318. ISSN 0946-2171

Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2007) Reactive ion etching of low-loss channel waveguides in $Al_2O_3$ and $Y_2O_3$ layers. In: Book of Abstracts 33rd International Conference on Micro- and Nano-Engineering 2007, 23-26 September 2007, Copenhagen, Denmark (pp. pp. 375-376).

Bradley, J.D.B. and Geskus, D. and Blaauwendraat, T. and Ay, F. and Wörhoff, K. and Pollnau, M. (2007) Optimized deposition and structuring of reactively co-sputtered $AL_2O_3:Er$ waveguide layers with net optical gain. In: 12th Annual Symposium IEEE/LEOS Benelux, 17-18 December 2007, Brussels, Belgium (pp. pp. 107-110).

Bradley, Jonathan D.B. and Ay, Feridun and Blauwendraat, Tom and Wörhoff, Kerstin and Pollnau, Markus (2007) Rare-earth-ion-doped $AL_2O_3$ waveguides for active integrated optical devices. In: International Conference on Lasers, Applications, and Technologies 2007: Advanced Lasers and Systems, 28 May - 1 June 2007, Minsk, Belarus.

Hopman, Wico C.L. and Ay, Feridun and Hu, Wenbin and Gadgil, Vishwas J. and Kuipers, Laurens and Pollnau, Markus and Ridder, René M. de (2007) Focused ion beam scan routine, dwell time and dose optimization for submicrometre period planar photonic crystal components and stamps in silicon. Nanotechnology, 18 (19). 195305/1-195305/11. ISSN 0957-4484

Hopman, Wico C.L. and Ay, Feridun and Hu, Wenbin and Gadgil, Vishwas J. and Kuipers, Laurens and Pollnau, Markus and Ridder, René M. de (2007) Focused Ion Beam Milling Strategies of Photonic Crystal Structures in Silicon. In: European Conference on Integrated Optics, ECIO 2007, 27-28 April 2007, Copenhagen, Denmark (pp. FA1-FA1/1).

Ridder, René M. de and Hopman, Wico C.L. and Ay, Feridun (2007) Focused-ion-beam processing for photonics. In: 9th International Conference on Transparent Optical Networks, ICTON 2007, 1-5 July 2007, Rome, Italy (pp. pp. 212-215).

Uranga, Amaia and Ay, Feridun and Bradley, Jonathan D.B. and Ridder, René M. de and Wörhoff, Kerstin and Pollnau, Markus (2007) Focused ion beam nano-structuring of photonic Bragg gratings in $Al_2O_3$ waveguides. In: IEEE/LEOS Benelux Chapter 2007, 17-18 December 2007, Brussels, Belgium (pp. pp. 247-250).

Wörhoff, K. and Bradley, J.D.B. and Ay, F. and Pollnau, M. (2007) Low-loss $Al_2O_3$ waveguides for active integrated optics. In: Technical Digest Conference on Lasers and Electro-Optics, CLEO 2007, 6-11 May 2007, Baltimore, MD, USA (pp. CMW5).

2006

Ay, F. and Wörhoff, K. and Bradley, J.D.B. and Pollnau, M. (2006) Reliable fabrication of low-loss $Al_{2}O_{3}$ waveguides for active integrated optics. In: 2nd EPS-QEOD Europhoton Conference on Solid-State and Fiber Coherent Light Sources - Europhysics Conference Abstracts, 10-15 September 2006, Pisa, Italy (pp. TuC2).

Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2006) Reactive Ion Etching of $Y_{2}O_{3}$ films applying F-, Cl- and Cl/Br-based Inductively Coupled Plasmas. In: Science and Technology of Dielectrics for Active and Passive Photonic Devices, 29 Oct - 3 Nov 2006, Cancun, Mexico (pp. pp. 117-124).

Bradley, J.D.B. and Ay, F. and Wörhoff, K. and Pollnau, M. (2006) $AL_{2}O_{3}$ and $Y_{2}O_{3}$ Thin Films for Active Integrated Optical Waveguide Devices. In: IEEE/LEOS Benelux Chapter 2006 Annual Symposium, November 30 - December 1, 2006, Eindhoven, The Netherlands (pp. pp. 113-116).

Kocabas, A. and Ay, F. and Dana, A. and Aydinli, A. (2006) An elastomeric grating coupler. Journal of Optics A - Pure and applied Optics, 8 (1). pp. 85-87. ISSN 1464-4258

Wörhoff, K. and Ay, F. and Pollnau, M. (2006) Optimization of Low-Loss $AL_{2}O_{3}$ Waveguide Fabrication for Application in Active Integrated Optical Devices. In: Science and Technology of Dielectrics for Active and Passive Photonic Devices, 29 Oct - 3 Nov 2006, Cancun, Mexico (pp. pp. 17-26).

2005

Agan, S. and Ay, F. and Kocabas, A. and Aydinli, A. (2005) Stress effects in prism coupling measurements of thin polymer films. Applied physics A: Materials science & processing, 80 (2). pp. 341-345. ISSN 0947-8396

Kocabas, Askin and Ay, Feridun and Dana, Aykutiu and Kiyat, Isa and Aydinli, Atilla (2005) High-refractive-index measurement with an elastomeric grating coupler. Optics Letters, 30 (23). pp. 3150-3152. ISSN 0146-9592

2004

Ay, F. and Aydinli, A. (2004) Comparative investigation of hydrogen bonding in silicon based PECVD grown dielectrics for optical waveguides. Optical materials, 26 (1). pp. 33-46. ISSN 0925-3467

Ay, Feridun and Kocabas, Askin and Kocabas, Coskun and Aydinli, Atilla and Agan, Sedat (2004) Prism coupling technique investigation of elasto-optical properties of thin polymer films. Journal of Applied Physics, 96 (12). pp. 7147-7153. ISSN 0021-8979

Ozcan, A. and Digonnet, M.J.F. and Kino, G.S. and Ay, F. and Aydinli, A. (2004) Characterization of thermally poled germanosilicate thin films. Optics Express, 12 (20). pp. 4698-4708. ISSN 1094-4087

2003

Ay, Feridun and Aydinli, Atilla and Agan, Sedat (2003) Low-loss as-grown germanosilicate layers for optical waveguides. Applied Physics Letters, 83 (23). pp. 4743-4745. ISSN 0003-6951

Durusoy, H.Z. and Duyar, O. and Aydinli, A. and Ay, F. (2003) Influence of substrate temperature and bias voltage on the optical transmittance of TiN films. Vacuum, 70 (1). pp. 21-28. ISSN 0042-207X

This list was generated on Sat Oct 25 05:09:51 2014 CEST.