Jan Aubrecht, Ph.D.

Professional activities:

2008: Fellow researcher in Czech Technical University- Faculty of Nuclear Sciences and Physical Engineering, Department of Solid States Engineering 

2008: Passed Advanced Study Course on Optical Chemical Sensors ASCOS 08

2007 - now: Department of Technology of Optical Fibers of Institute of Photonics and Electronics

Education:

2006 - 2014: Czech Technical University- Faculty of Nuclear Sciences and Physical Engineering, Department of Solid States Engineering, PhD-study

2001 - 2006: Czech Technical University - Faculty of Nuclear Sciences and Physical Engineering, Department of Solid States Engineering, MS degree - thesis: Detection of gaseous ammonia using evanescent optical sensor (1). Final state examinatin from : Solid State Physics (1), Solid State Theory (1), Semiconductor Materials and Devices (1).

Current Research projects:

Member of the projects:

• Self-sweeping of laser wavelength and associated instabilities of fiber lasers
• Novel silica-based Ho -doped nanomaterials for 2-μm-class fibre laser research

Selected past research projects:

Member of the projects:

• Bragg fibers for delivery of high laser powers
• Tm-doped optical fibres for fibre lasers in 2 um spectral range
• Preparation and properties of silica-based optical glasses containing rare-earth- and chromium-doped nano-particles
• Regulation of morphogenesis of plant cells and organs

Publications:

Books:

1. Kašík, O. Podrazký, J. Mrázek, J. Aubrecht, V. Matějec: „Chlorine in water“, R. Mangione, D. Carlyle (Eds.): „Chlorine: Properties, applications and health effects“, Nova Science Publishers, Inc., 2011, book chapter

Journal papers:

1. P. Peterka, P. Honzátko, P. Koška, F. Todorov, J. Aubrecht, O. Podrazký, I. Kašík: „Reflectivity of transient Bragg reflection gratings in fiber laser with laser-wavelength self-sweeping“, Optics Express 22 (2014), 30024-30031
2. J. Mrázek, I. Kašík, L. Procházková, V. Čuba, J. Aubrecht, J. Cajzl, O. Podrazký, P. Peterka , M. Nikl: „Active optical fibers doped with ceramic nanocrystals“, Advances in Electrical and Electronic Engineering 12 (2014) 567-574
3. T. Martan, J. Aubrecht, O. Podrazký, V. Matějec, I. Kašík: ”Detection of hydrocarbons using suspended core microstructured optical fiber”, Sensors and Actuators B-chemical 202 (2014) 123-128
4. O. Podrazký, V. Matějec, J. Mrázek, T. Martan, J. Aubrecht, I. Kašík: „Tapered optical fiber sensor for detection of pH in microscopic volumes“, Sensors & Transducers 27 (2014) 312-318
5. I. Kašík, O. Podrazký, J. Mrázek, J. Cajzl, J. Aubrecht, J. Proboštová, P. Peterka, P. Honzátko, A. Dhar: „Erbium and Al2O3 nanocrystals -doped silica optical fibers“, Bulletin of the Polish Academy of Sciences, Technical Sciences 62, 2014, 641-646
6. I. Kasik, J. Mrazek, O. Podrazky, M. Seidl, J. Aubrecht, M. Pospisilova, P. Tobiska, V. Matejec, B. Kovacs, A. Markovics, M. Szili: “Fiber- optic detection of chlorine in water", ”, Sensors and Actuators: B 139 (1) (2009) 139-142
7. I. Kašík, J. Mrázek, O. Podrazký, M. Seidl, J. Aubrecht, P. Tobiška, V. Matějec, B. Kovács, A. Markovics, M. Szili: “Preparation and characterization of thin transducer layers sensitive to free chlorine in water“, Materials Science and Engineering C 28 (5-6) (2008), 842-847
8. Kalvoda, L. - Aubrecht, J. - Klepacek, R.: Fiber Optic Detection of Ammonia Gas, Acta Polytechnica 46(2), 2006, p. 41-46.

Conference papers:

1. J. Aubrecht, J. Cajzl, P. Peterka, P. Honzátko, O. Podrazký, F. Todorov I. Kašík: "Characterisation of double-clad thulium-doped fibers with increased quantum conversion efficiency", Micro-structured and Specialty Optical Fibres IV (SPIE), 9507, 2015, p. 95070P
2. J. Mrázek, I. Kašík, J. Boháček, J. Proboštová, J. Aubrecht, O. Podrazký, J. Cajzl, P. Honzátko: „Special optical fibers doped with nanocrystalline holmium-yttrium titanates (HoxY1-x)2Ti2O7 for fiber-lasers“, Micro-structured and Specialty Optical Fibres IV (SPIE), 9507, 2015, p. 950703
3. O. Podrazký, I. Kašík, P. Peterka, J. Aubrecht, J. Cajzl, J. Proboštová, V. Matějec: „Preparation of optical fibers with non-circular cross-section for fiber lasers and amplifiers“, Photonics, Devices and Systems VI (SPIE), 9450, 2015, p. 94501A1-94501A6
4. J. Mrázek, M. Nikl, I. Kašík, O. Podrazký, J. Aubrecht, A. Beitlerová: “Nanoparticle-doped radioluminescent silica optical fibers“, Optical Fibers and Their Applications (SPIE) 9228, 2014, p. 922805-1
5. J. Cajzl, O. Podrazký, J. Mrázek, J. Aubrecht, V. Matějec, P. Peterka, P. Nekvindová, I. Kašík: “The influence of nanostructured optical fiber core matrix on the optical properties of EDFA“, Optics and Optoelectronics (SPIE) 8775, 2013, p. 8775-09
6. V. Matějec, I. Kašík, O. Podrazký, J. Aubrecht, M. Frank, M. Jelínek, V. Kubeček: „Preparation and characterization of bragg fibers with air cores for transfer of laser radiation“, Optics and Optoelectronics (SPIE) 8775, 2013, p. 8775-08
7. T. Martan, J. Aubrecht, O. Podrazký, I. Kašík, V. Matějec, J. Kaňka: „Microstructure optical fibres for detection of gaseous analytes“, The International Society for Optical Engineering (SPIE) 8073, 2011, 80731O
8. M. Pospíšilová, J. Aubrecht, T. Martan, J. Mrázek, I. Kašík, V. Matějec: „Dependence of detected intensity of fluorescence of dye on optical fiber tapered tip diameter“, The International Society for Optical Engineering (SPIE) 8073, 2011, 80731C
9. Martan, T., Pospíšilová, M., Aubrecht, J., Mrázek, J., Podrazký, O., Kašík, I., Matějec, V.: "Tapered optical fibres for local pH detection", Journal of Physics: Conference Series 206 (2010) art.no.012017.
10. T. Martan, I. Kašík, O. Podrazký, J. Mrázek, M. Pospíšilová, J. Aubrecht, V. Matějec, J. Kaňka : „Local Detection of pH Using Optical Fibre Probes“, Proc. 6th Journees Maghreb-Europe, Les Materiaux et Leurs Applications aux Dispositifs Capteurs (MADICA), Enset-Rabat, 30.10.2008- 1.11.2008 A53-1 – A53-2 (oral)
11. I. Kašík, J. Mrázek, O. Podrazký, M Seidl, J. Aubrecht, M. Pospíšilová, P. Tobiška, V. Matějec, B. Kovacs, A. Markovics, M. Szili: “Detection of chlorine in water", 2008, Dublin, 30.3.2008-2.4.2008, poster.
12. O. Podrazký, J. Mrázek, M Seidl, I. Kašík, P. Tobiška, V. Matějec, T. Martan, J. Aubrecht: "Optical principle of pH measurement for detection of auxin flow through cellular membrane", In Proc. SPIE 6585 Optical Sensing Technology and Applications, Prague, April 2007, 65850YI-6580Y. 7.