CV Researchers home
First name: Dana
Surname (Family name): Cristea
March 1998: Ph.D. in Optoelectronics and Materials for Electronics, "Politehnica" University, Bucharest, Romania
June 1982: MS in Elecronic Engineering - "Politehnica" University, Bucharest, Romania
modelling and simulation of micro and nano optoelectronic and photonic devices
design, modelling, fabrication and characterization of optoelectronic integrated circuits and MOEMS
development of components for photonic integrated circuits (waveguides, interferomenters, couplers, and special photodetectors) based on different materials (silica, SiON, organic and polymeric materials)
micromachining technologies for MOEMS
new materials and processes (polymers, sol-gel layers- inorganic and hybrid) for integrated optics,
Oct. 1994 - senior researcher - National Institute for Research and Development in Microtechnologies, Bucharest, Romania;
since January 1997 – head of Laboratory of Microoptics;
since April 2002- head of Department for Multidisciplinary Research
April 1983 – Sept. 1994 – research scientist in the Department of Optoelectronics and Sensors from the Research &Development Institute for Electronic Components, Bucharest, Romania; since Jan. 1990 – senior researcher.
Sept. 1982 – April 1983- design engineer – Enterprise for Avionics – Bacau, Romania
since Sept. 1990 - Associate Professor at "Politehnica" University, Bucharest, Faculty of Electronics.
20-28.11.1999, ENSERG- Grenoble, Franta -Laboratoire d'Electromagnétisme, Microondes et Optoélectronique LEMO- specializare in Silicon-based integrated optics - grant CNRS -Franca
26.11.-10.12.2000, ENSERG- Grenoble , Franta-Laboratoire de Physique des Composants a Semiconducteurs - specializare in Silicon-on Insulator - grant CNRS-France
Present position: senior researcher, leader of the Department for Multidisciplinary Research from IMT
Development of silicon optoelectronic devices and circuits (photodiodes, phototransistors, photothyristors, opto-couplers, linear and digital integrated optoelectronic circuits).
- Design and modelling of optoelectronic devices and integrated circuits. Matching all the involved technologies. Experimental realization and optoelectrical characterization. Reliability testing.
Development of silicon photonic integrated circuits
- Design, modelling and realization and characterization of a new structure of photodetector optimized for optical coupling with waveguides. New materials (semiconductor, dielectric, organic) and processes for photonic circuits. Integration on the same silicon chip of photodetectors, waveguides, couplers. Soft simulator for optimal design of grating coupler. 3D modelling of the subsistem waveguide-coupling element- photodiode.
Development of chemo-optical sensors
- Design and realization of chemo-optical sensors.
Development of Si-based emitting devices
- Development of new materials (nanostructured silicon, Si-alloys, organic materials), and processes for obtaining light emitting diodes compatible with CMOS technology.
Development of new materials, processes and structures for Si-based MOEMS and photonic devices
- Experimental realization of micromechanical structures for positioning and alignment (by bulk micromachining). Hybrid integration of light sources Silicon micromachining for MOEMS.
- New materials and processes (polymers , sol-gel layers- anorganic and hybrid) for integrated optics
- Photonic structures for bio-medical applications.
Waferbonding and Active Passive Integration Technology and Implementation (WAPITI) – STREP-FP6/IST (2004-2007)
- Multi-Material Micro Manufacture: Technologies and Applications (4M) – Network of Excellence- FP6/NMP (2004-2007)
- Advanced Handling and Assembly in Microtechnology (ASSEMIC) – Research Training Network – FP6 (2004-2007)
- Intégration de photodétecteurs et de composants photoniques dans les microsystèmes (MOEMS) - Bilateral Co-operation Romania-France – Brâncusi project (2005-2006) (de trecut si pe lista de proiecte a laboratorului !!!!!)
- Silicon-based micromechanical tunable interferometers for optical communications and interconnections - Bilateral Co-operation Romania-Greece (2003-2005)
- Development of Micro-Opto-Electro-Mechanical System (MOEMS) based on Integrated Optics and Silicon Micromachining- Bilateral Co-operation Romania-Greece (Sept. 2000-sept. 2002)
- Silicon-based integrated optics. Silicon-on - insulator technologies for optical and microwave applications” Bilateral co-operation CNRS France (LPCS, ENSERG Grenoble) – Romanian Academy
- Polymer technologies for integrated optics and microwave devices - National R&D project 2003-2005.
- Technologies for MOEMS and sensors microstructures based on polymeric and hybrid composites- National R&D project (MATNANTECH) t 2004-2006.
- Microphotonic structures for chemo and biosensors. -National R&D project 2003-2005.
- Technologies for microphotonic components for optical interconnections and communications - National R&D project (MATNANTECH) project 2001-2004
- Technologies for photonic integrated sub-systems National R&D project (MATNANTECH) project 2001-2004
- Optical microsensors on silicon substrate – new materials, components and technologies, National R&D project (RELANSIN) 2000-2003.
Centre for micro- and nano-photonics, National R&D project (RELANSIN) 2000-2004-
Main scientific publications:
Papers in periodicals (selective list of the recent papers)
D.Cristea, M. Kusko, C. Tibeica, Raluca Muller, Elena Manea and D. Syvridis- “Design and experiments for tunable optical sensor fabrication using (1 1 1)-oriented silicon micromachining” –Sensors and Actuators A: Physical 113 (2004) 312-318.
Maria Zaharescu, Maria Crisan, Luminita Predoana, Mariuca Gartner, Dana Cristea, Stefania Degeratu and Elena Manea,2004, Hybrid Inorganic-Organic Sol–Gel Coatings in the SiO2-TiO2 System, Journal of Sol-Gel Science and Technology, Volume 32, 2004, 173 - 177
Dana Cristea, Raluca Muller, P. Arguel, M. Kusko, C. Tibeica, D.Syvridis, Miromachined tunable optical microfilters design and experimental processing", Volume SPIE 5455 - MEMS, MOEMS, and Micromachining – Editors: Hakan Urey, Ayman El-Fatatry, August 2004, 252-263.
M.Bulinski, D.Cristea, C.Plapcianu, H.Franke, F.E.Wagner, G.Filoti – “Optical and Electical Properties of Metal Doped Polymers for integrated Optics”, J. of Optoelectronics and Advanced Material 5 (2003), 331-335.
A.Jitianu, Mãriuca Gartner, Maria Zaharescu, Dana Cristea, Elena Manea - “Experiments for Inorganic-Organic Hybrid Sol-Gel Films for Micro and Nano-Photonics”, Materials Science and Engineering C 23 (2003) 301-306.
Modreanu, M. Gartner, E. Aperathitis, N. Tomozeiud, M. Androulidaki, D. Cristea, Paul Hurley, “Investigation on preparation and physical properties of nanocrystalline Si/SiO2 superlattices for Si-based light-emitting devices”, Physica E: Low-dimensional Systems and Nanostructures, Volume/Issue: vol 16/3-4(2003) 461 – 466.
Dana Cristea, Munizer Purica, Elena Manea and Viorel Avramescu-“Experiments for microphotonic components fabrication using Si <1 1 1> etching technique” Sensors and Actuators A: Physical 99 (1-2) (2002) 92-97.
M. Modreanu, M.Gartner, D.Cristea – “Investigation of physical properties of nanocrystalline Si/SiO2 and Si/Si3N4 superlattices for Si-based light emitting devices, Materials Science and Engineering C 19 (2002) 225-228.
D. Cristea, R. Muller, F. Craciunoiu, M. Caldararu, M. Purica, E.Budianu, P. Obeja, I.Pavelescu, M.Modreanu – “Microphotonic Devices and Circuits for Opto-Electro-Mechanical Microsystems” – in Micro and Nanostructures, Ed.Academiei, Bucharest, 2001.
Dana Cristea, F.Craciunoiu, M.Modreanu, M.Caldararu, I.Cernica – “ Photonic circuits integrated with CMOS compatible photodetectors”, Optical Materials, Vol 17/1-2,2001, 201-205.
Dana Cristea, F.Craciunoiu, M.Caldararu – “Components for optoelectronic and photonic integrated circuits - design, modelling, manufacturing and monolithic integration on silicon”, Materials Science and Engineering B74, (2000), 89-95.
Raluca Muller, Victor Moagar Poladian, Ioan Pavelescu, Elena Manea, Dana Cristea, P.Obreja – “Technological processes and modelling of MOEMS”, Materials Science for Semiconductor Procesing, Vol.3, (5-6) (2000) 427-431.
Dana Cristea, Ileana Cernica, Camelia Dunare, R. Muller - “Hybridisation of LED’s with silicon microsensors”, Materials Science for Semiconductor Procesing, Vol.3, (5-6) (2000). 563-568.
Raluca Muller, Dana Cristea, Ioan Pavelescu, Florea Craciunoiu, Dan Dascalu - Integrated optics circuits for opto-electro-mechanical microsensors", Nexus Research News, august 1999, 8-11
D.Cristea – “Silicon Opto-FET for Optoelectronic Integrated Systems" - Balkan Phys. Lett. Vol 5, august 1999, 2254-2257.
D.Cristea, D.Dascalu – "Microoptics and silicon microsystems", Romanian Journal of Optoelectronics, Vol.7, No. 1, 1999.
F.Caldararu, M.Caldararu, D.Cristea, - Silicon Photodiode-Waveguide Coupling: Two-Domensional Modelling, Software Simulation and Experiments, A.Paraschiv Solid State Electronics 39, 1996, 1649- 1657
Conference Proceedings (selective list of the recent papers)
Dana Cristea, Paula Obreja, Mihai Kusko, Elena Manea, Roxana Rebigan, “Polymer micromachining for micro and nano-photonics”, E-MRS Spring Meeting 2005, Strasbourg, France, June 2005
Paula Obreja, Elena Budianu, Raluca Gavrila, M. Kusko, V. Kuncser, Poly (vinyl-alcohol) Films for Microphotonics”, Proc. of The 16-th International Conference on Microelectronics, (ICM'2004), dec. 2004, Tunis.
D.Cristea, P.Obreja, E.Budianu, E.Manea, M.Kusko, R.Rebigan, Microphotonic structures Based on Poly(vinyl alcohol) Polymer for Chemo- and Bio-Sensors, SPIE Conference Advanced Topics on Optoelectronics, Microelectronics & Nanotechnoilogiues ATOM-N, Nov. 2004, Bucharest, to be publsihed in Proc. SPIE 2005.
M.Zaharescu, D.Cristea, M.Crisan, E.Predoana, "Oxide and hybrid sol-gel films with special optical, catalytic and electrical properties" Proc. of the XIII Research Materials Congress, 22-26 august 2004, Cancun, Mexic, 2004 G.Istrate. P.Schiopu. D.Cristea. E.Manea. C.Podaru. M.Kusko "Fiber attachement for waveguide based devices using V-grooves made in silicon". Proc. of CAS'2004.
Raluca Müller, Dana Cristea, C. Tibeica, P. Pons, P. Arguel, D. Syvridis si M.Kusko; "Modeling Tunable Fabry-Perot Surface Micromachined Inteferometer , 2004, Experiments and Modeling - DTIP For MEMS & MOEMS"; Montreux, Switzerland, 12-14 May 2004
P.Obreja, A.Obreja, D.Cristea, E.Budianu, “Optical properties of poly(vinyl-alcohol) based thin films for microphotonics”, E-MRS Spring Meeting 2004, Symp. A1, Strasbourg, France, 2004,
E. Manea, E. Budianu, M. Purica, D. Cristea, I. Cernica, R. Muller, 2004, "Optimization of front surface texturing processes for high efficiency silicon photovoltaic cells", International Conference on the Physics, Chemistry and Engineering of Solar Cells, SCELL2004, Badajos, Spania.
V. Kuncser, M. Bulinski, S. Krautwald, H. Franke, F. E. Wagner, C. Plapcianu, D. Cristea, P. Rotaru, G. Filoti,2004, Enhanced photosensitivity of multivalent metal doped polymers for integrated optics, "Photonics Europe 2004", Strasbourg, France,
Dana Cristea, Raluca Muller, P. Arguel, M. Kusko, C. Tibeica, D.Syvridis, "Micromachined tunable optical microfilters design and experimental processing"; Photonics Europe 2004, Strasbourg, France, April 2004.
D. Cristea, E. Manea, M. Kusko, 2004, Optical MEMS components fabrication using microachining of (111) - oriented silicon wafers, Proc. of. "Photonics Europe 2004" Strasbourg, France, April 2004.
D. Cristea, M. Kusko, C. Tibeica, R. Muller, E. Manea, D. Syvridis, Design and experiments for tunable optical device fabrication using <111>- oriented Si micromachining, E-MRS Spring Meeting 2003, Strasbourg,France, June 2003.
C. Tibeica , R. Muller , D. Cristea , P. Pons, Mechanical behavior simulation and fabrication of an electrostatically actuated Fabry-Perot micro-cavity, EUROSENSORS 2003, Portugal, Sept. 2003.
M.Crisan, M.Gartner, D.Cristea, M.Zaharescu, L.Predoana, E.Manea, M.Caldararu, "Sol-gel preparation of thin films for integrated optics", Proceedings of the 10th IEEE Int. Symposium on Electron Devices for Microwave and Optoelectronic Applications (EDMO 2002), , Manchester, U.K.,18-19 Nov. 2002, p.205-211.
Munizer Purica, Elena Budianu, Dana Cristea, "Design and optimization of the Photodetector Structures with planar mirror optical microcavity", Proceedings of the 10th IEEE Int. Symposium on Electron Devices for Microwave and Optoelectronic Applications (EDMO 2002), , Manchester, U.K.,18-19 Nov. 2002, p.75.
D.Cristea, E.Manea , "New technique for Si-based microphotonic components fabrication", Proceedings of ICO19 - Optics for the Quality of Life, 25-30 August, Florence, Italy, p.647
Dana Cristea, Elena Manea, "Si-based microphotonic components fabrication using anisotropic etching of <111>-oriented silicon wafers", Advanced Topics in optoelectronics Micro&Nanotechnologies International Conference-ATOM 2002, November, 21-23, 2002, Bucharest, Romania, p.32
Raluca Müller, D.Syvridis, M. Kusko, D. Cristea, D.Apostol, V.Damian, M Bercu, E. Manea, "Integrated Fabry-Perot Microcavity based on Surface Micromachining Processes", Advanced Topics in optoelectronics Micro&Nanotechnologies International Conference - ATOM 2002, November, 21-23, 2002, Bucharest, Romania, p.40
M.Modreanu, J.Jusice, M.Gartner, D.Cristea, C.Moldovan, P.K.Hurley, D.O’Connel, "Optical Characterization of dielectric thin films for photonic applications", Advanced Topics in optoelectronics Micro&Nanotechnologies International Conference- ATOM 2002, November, 21-23, 2002, Bucharest, Romania p.33.
D.Cristea, P.Obreja, E.Manea – "New silicon waveguides fabrication process based on the anisotropic etching of Si <111>-oriented wafers", E-MRS Spring Meeting 2002, Symposium H, Strasbourg, France, June 2002
M.Crisan, M.Gartner, D.Cristea, M.Zaharescu,E.Manea Sol-gel thin films for integrated optics and optical gas sensors on silicon, E-MRS Spring Meeting 2002, Symposium H, Strasbourg, France, June 2002.
M.Modreanu, M. Gartner, E.Aperathitis, M. Androulidaki, D.Cristea-" Investigation on Preparation and Physical Properties of Nanocrystalline Si/SiO2 Superlattices for Si-Based Light Emitting Devices", E-MRS Spring Meeting 2002, Symposium H, Strasbourg, France, June 2002
R.Muller, D.Syvridis, E.Manea, D.Cristea, M.Kusko Sacrificial and Structural Layers used in surface micromachining Fabry-Perot Microcavities, E-MRS Spring Meeting 2002, Symposium H, Strasbourg, France, June 2002.
M.Gartner, D.Cristea, A.Jitianu, M.Zaharescu, E.Manea, "Experiments for inorganic-organig hibrid sol-gel-based photonic components" E-MRS Spring Meeting 2002, Symposium Q, Strasbourg, France, June 2002, pp 201-205.
D.Cristea "Silicon Opto-FET for Photonic Integrated Circuits", Proc.of the International Symposium on Electron Devices for Microwave and Optoelectronic Applications EDMO 2001, Viena, nov. 2001, pp.273-278
D. Cristea, M. Purica, E. Manea, P. Obreja, "Etching processes of Si <111> wafers for fabrication of microphotonic components" –Proc. of. the 24th International Semiconductor Conference -CAS’2001, Sinaia, Romania, Oct. 2001, p. 254.
D.Cristea, P.Obreja, M.Purica, E.Manea- "Experiments for microphotonic components fabrication using Si <111> etching techniques", Proceeding of E-MRS Spring Meeting 2001, Strasbourg, France, June 2001, Published by European Material Research Society, pp. J-9.
M.Modreanu, M.Gartner, D.Cristea – "Investigation of physical properties of nanocrystalline Si/SiO2 and Si/Si3N4 superlattices for Si-based light emitting devices", Proceeding of E-MRS Spring Meeting 2001, Strasbourg, France, June 2001, Published by European Material Research Society, pp. S-29.
Dana Cristea, FloreaCraciunoiu, M.Caldararu – "Silicon Optoelectronic Integrated Circuits for MOEMS", Symposium Design, Test, Integration and Packaging of MOEMS -DTIP’2000, Paris, Franta,Vol. SPIEE 4019, pp.516-525, 2000.
Dana Cristea, Raluca Muller, Ioan Pavelescu- "Micromachined photonic integrated circuits for sensor applications - experimental results", Proc of Symposium - Design, Test and Microfabrication of MEMS/MOEMS – DTM’99, Paris, France, March 1999, Vol. SPIE 3680, pp.1141-1150.
Member of professional associations:
IEEE- Laser and Electro-Optics Society and Solid-State Circuits Society
Additional information (expertise, prizes, etc.):
Expert evaluator for FP6 – priority 3 NMP and for National Programs MATNANTECH ( Materials, Micro and Nanotechnologies and CERES (Fundamental research)
J. Smart Structures and Systems (International Journal of Mechatronics, Sensors, monitoring, Control, diagnosis, &Life Cycle Eng.)
- Optical Materials
- IEEE Trans. on Electron Devices
- Journal of Sol-Gel Science and Technology
- Journal of Optoelectronics and Advanced Materials
- Romanian Journal of Information Science and Technology
- E-MRS Spring Meeting – 2001, Symp. H
- International Semiconductor Conference 1992-2005
- SPIE Symposium “Advanced Topics in optoelectronics Micro&Nanotechnologies” 2002 1nd 2004
Organiser of the "Microoptics and Microphotonics" conference sessions in the frame of the International Semiconductor Conference (CAS'2001-CAS’2004);
Member in the organizing committee of the International Conference Advanced Topics in optoelectronics Micro&Nanotechnologies- ATOM 2002 and ATOM-N 2004 Bucharest, Romania (November 2002 and 2004)
National Institute for R&D in Microtechnologies (IMT-Bucharest), Laboratory of Microphotonics,
PO Box 38-160, Bucharest 72225, Romania
tel: +40.21.490 84 12; +40.21.490 85 84; +40.21.490 82 12; fax: +40.21.490 82 38
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