19th International Conference on Advanced Laser Technologies BOOK OF ABSTRACTS 3 – 8 September 2011 Golden Sands resort, Bulgaria Editors: Ekaterina Borisova Anna Dikovska Irina Bliznakova 19th International Conference on Advanced Laser Technologies – ALT’11, Golden Sands, Bulgaria, 3 – 8 September 2011 Book of Abstracts Publisher: Institute of Electronics, Bulgarian Academy of Sciences 72 Tsarigradsko chaussee Blvd., 1784 Sofia, Bulgaria Print: ZiZi print Ltd. 133 Tsarigradsko chaussee Blvd., BIC-IZOT. Corpus 1, office 315, 1784 Sofia, Bulgaria The text was not submitted to any language revision. Copyright © authors, 2011 Local venue, accommodation and social events for the participants at the 19th International Conference on Advanced Laser Technologies – ALT’11 are organized with the help of Alexander Tour Company - www.alexandertour.com 2 19th International Conference on Advanced Laser Technologies – ALT’11 is organized by: Institute of Electronics, БЪЛГАРСКА АКАДЕМИЯ НА НАУКИТЕ ИНСТИТУТ ПО ЕЛЕКТРОНИКА “АКАДЕМИК ЕМИЛ ДЖАКОВ” Bulgarian Academy of Sciences BULGARIAN ACADEMY OF SCIENCES INSTITUTE OF ELECTRONICS “ACADEMICIAN EMIL DJAKOV” Prokhorov General Physics Institute, Russian Academy of Sciences International Laser Center of M.V.Lomonosov Moscow State University Center for Laser Technology and Materials The Organizers have the pleasure to announce that we have received support from the Editors of three internationally recognized journals in the field of laser technologies and their applications for publishing of special issues – collection of selected papers presented on ALT’11. We invite all the conference participants to submit their original and unpublished reports, presented on the 19th International Conference on Advanced Laser Technologies 2011, in the special issues of Quantum Electronics, Journal of Biophotonics and Journal of Innovative Optical Health Sciences. As the scientific quality is most important, the standard review process of the submitted papers will be used. For the format of the manuscript, authors are advised to follow the instructions, which they could find on the journals’ internet sites. The deadline for manuscripts is October 15, 2011. The special issues will be published in the spring of 2012. Quantum Electronics Journal of Biophotonics Journal of Innovative Optical Health Sciences 3 19th International Conference on Advanced Laser Technologies – ALT’11 is supported by: NATIONAL CENTER ON BIOMEDICAL PHOTONICS RUSSIAN FOUNDATION FOR BASIC RESEARCH LASER QUANTUM OCEAN OPTICS HORIBA JOBIN YVON ASTEL 4 Conference Chairman Ivan SHCHERBAKOV, Russia Program Committee Co-chairs Latchezar AVRAMOV, Bulgaria Vitaly KONOV, Russia Organizing Committee Co-chairs Ekaterina BORISOVA, Bulgaria Vladimir PUSTOVOY, Russia Organizing Committee Irina BLIZNAKOVA – Secretary, Bulgaria Natalia KHAKAMOVA - Secretary, Russia Anna DIKOVSKA, Bulgaria Albena DASKALOVA-SHIVAROVA, Bulgaria Rangel RANGELOV, Bulgaria International Program Committee Kerim ALLAKHVERDIEV, Turkey Vladislav PANCHENKO, Russia Ekaterina BORISOVA, Bulgaria Ivan PELIVANOV, Russia Stefka CARTALEVA, Bulgaria Sergey PIMENOV, Russia Aladar CZITROVSKY, Hungary Alexander PRIEZZHEV, Russia Boris DENKER, Russia Valerio ROMANO, Switzerland Dan DUMITRAS, Romania Nikola SABOTINOV, Bulgaria Costas FOTAKIS, Greece Alexandros SERAFETINIDIS, Greece Sergey GARNOV, Russia Mark SENTIS, France Tomas GRAF, Germany Koji SUGIOKA, Japan Frans HARREN, Netherlands Valery TUCHIN, Russia Andrei KABASHIN, France Sandor VARRO, Hungary Armando LUCHES, Italy Vadim VEIKO, Russia Qingming LUO, China Timo YAASKELAINEN, Finland Vladimir MAKAROV, Russia Dave ZELMONDE, USA Andreas MANDELIS, Canada Alexey ZHELTIKOV, Russia 5 Dear Colleagues, It is a great pleasure and honor to welcome you at the 19th International Conference on Advanced Laser Technologies – ALT’11 held at the hotel Melia Grand Hermitage, Golden Sands resort, Bulgaria. The ALT Conference series are focused on the recent achievements and advances in laser technology and laser applications in various areas. These series of conferences, held annually since 1993, were established by Nobel Prize laureate Alexander Prokhorov, director of the General Physics Institute of the Russian Academy of Sciences. Previous conferences were organized in Russia, Czech Republic, Germany, Greece, France, Italy, Romania, Switzerland, United Kingdom, China, Hungary, Finland, Turkey and The Netherlands. The key topics of the conference are Biophotonics, Optoacoustics, Laser Diagnostics and Laser-Matter Interactions, Non-linear Optics Materials and Devices, Laser Systems and New Laser Materials, Terahertz Spectroscopy and Applications. Leading scientists and researchers from all over the world are invited to attend the Conference and make presentations reviewing the latest results in their field of interest. The activities of the 19th International Conference on Advanced Laser Technologies will take place in Golden Sands Resort on Bulgarian Black Sea Coast. Golden Sands (Zlatni Piasaci) is one of the biggest holiday resort complexes along the northern coastline, famous for its healing hot-water mineral springs as well as its beautiful two-mile (4 km) stretch of fine sandy beach, making it a popular holiday destination. The resort is located 11 miles (18 km) north of Varna, and sits at the foot of the forested hills of the Zlatni Piasaci National Park. Its ideal weather conditions with plenty of entertainment, sporting activities, warm and clean water, year round luxury hotels and villas, restaurants, bars and spa treatments, making Golden Sands one of the more desirable destinations on the Black Sea Coast. This part of Bulgaria is also reach of historical places, romantic towns and beautiful natural landscapes, and we hope that you are able to spend some extra leisure time to visit some of them. We do welcome you to this typical Bulgarian sea resort, with its well equipped conference center with extensive facilities. We hope that you will have a fruitful meeting, that you will make new friends and will meet old ones and will keep Bulgaria in your heart. Host and Co-chair of the Organizing Committee Ekaterina Borisova 6 Programme at a glance Saturday Arrival and registration 15:00-19:00 September 3, 2011 Welcome party 20:00-21:30 Sunday Welcome and Opening Remarks 09:00-09.30 September 4, 2011 Plenary talks 09:30-11:00 Parallel sessions 11:30-12:50 Lunch 13:10-15:00 Parallel sessions 15:00-16:20 Parallel sessions 16:50-18:50 Monday Plenary talks 09:30-11:00 September 5, 2011 Parallel sessions 11:30-13:10 Lunch 13:10-15:00 Parallel sessions 15:00-16:20 Parallel sessions 16:50-18:50 Tuesday Social Program – excursion 09:00-14:00 September 6, 2011 Poster Session 16:30-18:30 Conference dinner 19:30-22:00 Wednesday Plenary talks 09:30-11:00 September 7, 2011 Parallel sessions 11:30-13:10 Lunch 13:10-15:00 Parallel sessions 15:00-16:20 Parallel sessions 16:50-18:10 Thursday Parallel sessions 09:00-10:40 September 8, 2011 Closing Ceremony 10:40-11:00 7 CODES APPLIED • PL – plenary lecture • I – invited lecture • O – oral presentation • P – poster presentation KEY TOPICS • Biophotonics - BP • Optoacoustics - OA • Laser diagnostics - LD • Laser-matter interactions - LM • Laser systems and new laser materials - LN • Non-linear optics materials and devices - NL • Terahertz spectroscopy and applications – TH • Ultrafast laser technologies and applications - UF • Laser applications in material sciences - LA • Active optical sensing and metrology - AO • Laser remote sensing and ecology - LR • Lasers in cultural heritage - LC • Laser spectroscopy - LS Code example: I-3-OA – invited lecture #3 in Optoacoustics topic P-12-BP – poster #12 in Biophotonics topic 8 PLENARY LECTURES 19th International Conference on Advanced Laser Technologies – ALT’11 3 – 8 September 2011, Golden Sands, Bulgaria __________________________________________________________________________________ PL-1 UPCONVERTING NANOPARTICLES AS CONTRAST AGENT IN LUMINESCENCE IMAGING AND TOMOGRAPHY Stefan Andersson-Engels1, Haichun Liu1, Can T. Xu1, Pontus Svenmarker1, Wu Xia1, Haiyan Xie1, Ola Jakobsson2, Thomas Laurell2, Fredrik Olsson3, Sarah Fredriksson3, 1Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden 2Department of Electrical Measurements, P. O. Box 118, Lund University, SE-221 00, Sweden 3Genovis A, P.O. Box 790, SE-22007, Lund Sweden [email protected] Upconverting nanoparticles have recently drawn increasingly attention as a contrast agent for [1,2] optical bioimaging . Among upconverting nanomaterials, lanthanide-ions-doped NaYF4 nanoparticles have been shown to be the most efficient. A major advantage with upconverting contrast agents is that due to the anti-Stokes shift of the emission, autofluorescence, otherwise yielding a relatively intense superimposed background signal, can completely be filtered out. This is because autofluorescence will be emitted in a different wavelength region than that from the nanoparticles[3]. Other advantages are the wavelength regions for the excitation and emission will be within the tissue optical window[4], and that the spatial resolution will be improved as compared to fluorescence-based contrast agents[5-8]. [9-10] Currently, NaYF4 nanoparticles are synthesized in batch-control modes in small volumes . Although great achievements have been made, batch syntheses tend to suffer from irreproducibility, in terms of quality of the nanoparticles, from batch to batch and difficulty to implement fast screening.