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Research groups

 

 

 
Laser based photoacoustic spectroscopy is a unique method which can be used for
highly accurate, fast and automatic measurement of the concentration of gases and
vapours in an exceptionally wide range from ppb to 100%. Furthermore, quantitative
and qualitative (chemical composition and toxicology) properties of atmospheric
aerosol can be investigated based on the photoacoustic method. Our laboratory and
knowledge base have been created as a result of 20 years of research and development
and it were used successfully in performing internationally recognised research in
various fields including environmental monitoring, climate research and medical
research. In addition, we are continuously searching for possible practical
applications of the photoacoustic method, and for developing new instruments based
on this method.

Bemutatkozó poszter (pdf)
 

 

 

TeWaTi és hELIos Femtosecond Laser Laboratory and Research Group

 

Bemutatkozó poszter (pdf)
 

 

Femtoszekundumos impulzusok fókuszálása és diffrakciója  

 

Bemutatkozó poszter (pdf)
 


 

 

Attosecond physics Research Group

 

 

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Advanced Optical Imaging (AdOptIm) Research Group

 

 

Bemutatkozó poszter (pdf)
 


 

 

Light-Matter interaction Research Group

 

PI: Béla Hopp, Doctor of the Hungarian Academy of Sciences (DSc)

In the first years following the establishment of the department the members of the group mainly focused on the excimer laser ablation of polymers and biologic tissues, they performed studies on determination of main parameters of the ablation process and the temporal evolution of the material removal process. The shaping of the cornea with UV laser pulses and the concomitant phenomena were analyzed in detail with various methods. It was also demonstrated that the excimer laser irradiation can efficiently remove plaque and caries from human tooth. Thin films and layers were produced by depositing the ablatuum produced by pulsed laser irradiation of various polymers and biomaterials in order to investigate their applicability in medical science and diagnostics. A pulsed laser based method for the controlled transfer of human cells was developed, which can possibly find applications in the future in the field of tissue engineering.

One of the main research topics of the recent years is the micro- and nanoprocessing of transparent materials with indirect laser based methods. Their method called back-side dry etching makes possible the formation of nanostructures and microoptical elements. In a current research project they study the nanostructuring of metal surfaces in order to decrease their originally high reflectivity into a low, less than 5% level.

In the field of medical applications of lasers the members of the group performed important studies related to the application of laser speckle contrast analysis in blood perfusion measurements. They are developing an experimental system which can quickly and efficiently serve reliable data on the perfusion state of open surface large area tissues.

Bemutatkozó poszter (pdf)
 


 

 

Nano- and Microprocessing Laboratory

 

 

Bemutatkozó poszter (pdf)
 


 

 

 

Group for Nanoplasmonics

 

 

Bemutatkozó poszter (pdf)
 


 

 

 

Laser structuring research group

 

PI: Dr. Csaba Vass

Our main aims are the fabrication micro- and submicrometer period structures produced by laser-based methods onto surface of different materials for optical and sensing applications. This work is mainly application-motivated basic research.

Projects and applications

• Fabrication of transmission and reflection gratings (applied in laser systems, spectroscopy instruments)

• Biosensors (applied for Optical Waveguide Lightmode Spectroscopy)

• Etching and structuring of fused silica fiber for SEFS applications

• Polarizer fabrication

Bemutatkozó poszter (pdf)
 


 

 

Semiconductor-optics research group

 

 

Bemutatkozó poszter (pdf)
 


 

 

 

Astrophysics group

 

PI: Vinkó, József PhD

The astrophysics group was established in 1995. Beside research activities, the group members actively participate in astronomy/physics education as well as the public outreach at Szeged Observatory. At the beginning, the main research field was the application of high-resolution optical spectroscopy for pulsating and eclipsing binary variable stars. During the years many talented young students joined the group, which led to a dynamic increasing of the research activities and subjects. Former group members have been  working at several prestigious foreign institutes, such as the Harvard-Smithsonian Center for Astrophysics USA; University of Arizona USA; Max Planck Institute für Astronomie, Heidelberg, Germany; Universitat Andres Bello, Chile. Since 2000 the main subject is the astrophysics of supernova explosions. This work is mostly based on data obtained by space-based (Hubble-, Spitzer-, Swift-) instruments as well as ground-based telescopes, e.g. the 9.2 m Hobby-Eberly Telescope in Texas. Group members are actively participating in international collaborations. The main partners are the supernova research groups at Department of Astronomy University of Texas at Austin, California Institute of Technology, University of California at Berkeley and Queen's University Belfast. The main national collaborating institutes are the Research Centre for Astronomy and Earth Sciences of the Hungarian Academy of Sciences, the Gothard Astrophysical Observatory of Eötvös Loránd University and the Baja Observatory. 

Bemutatkozó poszter (pdf)