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The optical nanoantenna (likewise the radiofrequency antenna) collects and radiates photons anisotropically (often directionally) into surrounding space. Similarly, the chemical molecule can be also considered as an antenna. When the chemical molecule is placed in the vicinity of the optical nanoantenna (such as metal nanoparticle) and such complex system is irradiated the surface-enhanced Raman scattering (SERS) process may occur. The directionality, polarization, and intensity of scattered photons should depend on the molecule and nanoantenna orientation relatively to the excitation field as well as on their relative orientation in space. Moreover, both molecule and nanoantenna have optical resonances dependence on the excitation and emission wavelength. Therefore, a profound understanding of the SERS mechanism requires the analysis of angular SERS scattering patterns simultaneously with similar dark-field scattering patterns of single-molecules on single nanoantenna systems as a function of the excitation wavelength. In such analysis also the (relative) orientation of the system has to be considered. The goal of the project is a thorough understanding of the nature of the SERS process by systematic analysis of such wavelength dependent SERS and dark-field scattering directionality.

• Carrying out experiments on Raman (SERS) spectroscopy and microscopy micro-spectroscopy;
• Preparation, and physical and chemical characterization of samples (AFM, SEM, nanoparticles deposition, extinction spectra);
• Analysis of results and preparation of reports and presentations.

2500 PLN per month stipend financed from the NCN OPUS. The amount of stipend may be increased in the case of the need to increase the scope of performed tasks. Possibility of publication of research papers in recognized international journals. Possibility of preparing an M.Sc. thesis.

The successful candidate will benefit in the form of new knowledge and methods added to his/her toolbox. The project deals with nanophotonics, nanotechnology, physics, material sciences, and physical chemistry, so any candidate profile will find some new knowledge to be gained upon the realisation of the project.

We plan to publish the results of the work in high-impact factor journals.

The successful candidate will be able to take advantage of all programs in the IPC PAS, including Young Scientists of IPC PAS competition and Mobility of Young Scientists of IPC PAS competition. The Institute provides an opportunity to participate in ERASMUS+ program.

• Student of physics, chemistry, nanoscience, or similar.
• Basic knowledge of optical spectroscopy.
• Knowledge of the English language (written and spoken).
• Strong motivation to work and pursue scientific questions, creativity, and analytical thinking.
• The experience in related fields will be advantageous.

When assessing an application, the committee takes into account:

• candidate's scientific achievements, including publications in reputable publishing houses / scientific journals (the lack of publications is not disqualifying);
• awards resulting from conducting scientific research, scholarships, awards and scientific experience gained outside the parent research unit in the country or abroad, workshops and scientific training, participation in research projects;
• competencies to carry out specific tasks in the research project.

The detailed description of the assessing criteria can be found here: https://ncn.gov.pl/sites/default/files/pliki/uchwaly-rady/2016/uchwala96_2016-zal1.pdf