Published on IESL-FORTH (https://www.iesl.forth.gr)

POLARIZATION SPECTROSCOPY

Research directions / Objectives

  1.       Development of cavity-enhanced polarimetry (for improvement of sensitivity and time resolution).
  2.       Development of cavity-enhanced ellipsometry (for improvement of sensitivity and time resolution).
  3.       Measurement of atomic parity-nonconservation in Iodine, Xenon, and Mercury.
  4.       Production of spin-polarized atoms and molecules. 

HIGHLIGHTS

 

· Demonstration of new cavity-enhanced polarimetry techniques:

       a) Cavity Ring-Down Ellipsometry (CRDE) [J. Chem. Phys. 31, 121101 (2009)].

       b) Evanescent-Wave Cavity Ring-Down Ellipsometry (EW-CRDE) [US patent pending].

       c) Chiral-Cavity Ring-Down (CCRD) [Phys. Rev. Lett. 108, 210801 (2012), patent pending].

· First measurement of the complete three-dimensional steric effect in a bimolecular chemical reaction (dependence of reactivity on approach geometry) [F. Wang, K. Liu, T.P. Rakitzis, Nature Chemistry 4, 636 (2012)].

· Proposal and demonstration for the pulsed-laser production of spin-polarized atoms and molecules by the time-dependent transfer of polarization from molecular rotational polarization via the hyperfine interaction [T.P. Rakitzis,Phys. Rev. Lett. 94, 83005 (2005)].

· First observation of the photofragment recoil deflection angle, from the photodissociation of OCS molecules three-dimensionally “fixed-in-space” [Rakitzis et al., Science  303, 1852 (2004)].

  •  Production of spin-polarized hydrogen atoms from pulsed molecular photodissociation at high density [Rakitzis et al., Science  300, 1936 (2003)], and pulsed laser-detection.

 

Research Topics

Reasearch interest 1 for gorup Polarization

[2]
AGILDA [2]
Agile Data Acquisition: Record Polarimetry & Quantum Optics measurements
[3]
NUPOL [3]
Nuclear-spin polarization through molecular laser excitation: from nuclear fusion to NMR enhancement
Enhanced nuclear spin dependent parity violation effects using the 199HgH molecule
A. J. Geddes, L. V. Skripnikov, A. Borschevsky, J. C. Berengut, V. V. Flambaum, T. P. Rakitzis
Phys. Rev. A, Volume:98, Issue:2, Page:022508, Year:2018, DOI:doi.org/10.1103/PhysRevA.98.022508 [4]
Highly nuclear-spin-polarized deuterium atoms from the UV dissociation of Deuterium Iodide
72. D. Sofikitis, P. Glodic, G. Koumarianou, H. Jiang, L. Bougas, P. C. Samartzis, A. Andreev, T. P. Rakitzis
Phys. Rev. Lett., Volume:118, Issue:23, Page:233401, Year:2017, DOI:doi.org/10.1103/PhysRevLett.118.233401 [5]
Macroscopic production of highly nuclear-spin-polarized molecules from IR-excitation and photodissociation of molecular beams
C. S. Kannis,T. Peter Rakitzis
Chem. Phys. Lett. , Volume:784, Page:139092, Year:2021, DOI:doi.org/10.1016/j.cplett.2021.139092 [6]
Ultrahigh-density spin-polarized H and D observed via magnetization quantum beats
D. Sofikitis, C. S. Kannis, G. K. Boulogiannis, T. P. Rakitzis
Phys. Rev. Lett., Volume:121, Page:083001, Year:2018, DOI:doi.org/10.1103/PhysRevLett.121.083001 [7]
Ultrahigh-Density Spin-Polarized Hydrogen Isotopes from the Photodissociation of Hydrogen Halides: New Applications for Laser-Ion Acceleration, Magnetometry, and Polarized Nuclear Fusion
A. K. Spiliotis, M. Xygkis, M. Koutrakis, K. Tazes, G. K. Boulogiannis, C. S. Kannis, G. E. Katsoprinakis, D. Sofikitis, T. P. Rakitzis
Light: Science & Applications , Volume:10, Page:35, Year:2021, DOI:https://doi.org/10.1038/s41377-021-00476-y [8]
Evanescent-wave and ambient chiral sensing by signal-reversing cavity ringdown polarimetry
Dimitris Sofikitis, Lykourgos Bougas, Georgios E. Katsoprinakis, Alexandros K. Spiliotis, Benoit Loppinet & T. Peter Rakitzis
Nature, Volume:514, Issue:7520, Page:76, Year:2014, DOI:http://dx.doi.org/10.1038/nature13680 [9]
Chiral Cavity Ring Down Polarimetry: Chirality and magnitometry measurements using signal reversals
L. Bougas, D. Sofikitis, G. E. Katsoprinakis, A. K. Spiliotis. P. Tzallas, B. Loppinet, and T. P. Rakitzis
J. Phys. Chem. , Volume:143, Page:104202, Year:2015, DOI:https://doi.org/10.1063/1.4930109 [10]
Spin-Polarized Hydrogen Atoms from Molecular Photodissociation
11. T.P. Rakitzis, P.C. Samartzis, R.L. Toomes, T.N. Kitsopoulos, Alex Brown, G.G. Balint-Kurti, O.S. Vasyutinskii, J.A. Beswick
Science, Volume:300, Page:1936, Year:2003, DOI:doi.org/10.1126/science.1084809 [11]
Cavity-enhanced parity non-conserving optical rotation in metastable Xe and Hg
L. Bougas, G. E. Katsoprinakis, W. von Klitzing, J. Sapirstein, T. P. Rakitzis
Phys. Rev. Lett., Volume:108, Page:210801, Year:2012, DOI:doi.org/10.1103/PhysRevLett.108.210801 [12]

Heads

[13]
Prof. Rakitzis Peter
University Faculty Member

Technical Staff

[14]
Ms. Stamataki Katerina
Technician

Research Associates

[15]
Dr. Katsoprinakis George
PostDoctoral Fellow

Alumni

[16]
Mr. Chrysovalantis Kannis
Ph.D. student
[17]
Ms. Toutoudaki Eirini
M.Sc. student
[18]
Mr. Xygkis Michalis
Ph.D. student
[19]
Mr. Koutrakis Michalis
M.Sc. student
[20]
Mr. Tazes Kostas
M.Sc. student
[21]
Ms. Sargianni Zoi
Undergraduate trainee
[22]
Dr. Sofikitis Dimitris
Alumni
[23]
Dr. Karaiskou Anna
Alumni
[24]
Dr. Bougas Lykourgos
Alumni
[25]
Dr. Rubio-Lago Luis
Alumni
[26]
Dr. Kruse Jann Eike
Alumni
[27]
Ms. Kardamaki Eva
Alumni
[28]
Mr. Boulogiannis Gregoris
Alumni

Links
[1] http://imageserve.chem.unc.edu/resources/pdf_files/home_page/JCP_80th_Anniversary.pdf [2] https://www.iesl.forth.gr/en/project/agilda [3] https://www.iesl.forth.gr/en/project/nupol [4] https://doi.org/10.1103/PhysRevA.98.022508 [5] https://doi.org/10.1103/PhysRevLett.118.233401 [6] https://doi.org/10.1016/j.cplett.2021.139092 [7] https://doi.org/10.1103/PhysRevLett.121.083001 [8] https://https://doi.org/10.1038/s41377-021-00476-y [9] https://http://dx.doi.org/10.1038/nature13680 [10] https://https://doi.org/10.1063/1.4930109 [11] https://doi.org/10.1126/science.1084809 [12] https://doi.org/10.1103/PhysRevLett.108.210801 [13] https://www.iesl.forth.gr/en/people/rakitzis-peter [14] https://www.iesl.forth.gr/en/people/stamataki-katerina [15] https://www.iesl.forth.gr/en/people/katsoprinakis-george [16] https://www.iesl.forth.gr/en/people/chrysovalantis-kannis [17] https://www.iesl.forth.gr/en/people/toutoudaki-eirini [18] https://www.iesl.forth.gr/en/people/xygkis-michalis [19] https://www.iesl.forth.gr/en/people/koutrakis-michalis [20] https://www.iesl.forth.gr/en/people/tazes-kostas [21] https://www.iesl.forth.gr/en/people/sargianni-zoi [22] https://www.iesl.forth.gr/en/people/sofikitis-dimitris [23] https://www.iesl.forth.gr/en/people/karaiskou-anna [24] https://www.iesl.forth.gr/en/people/bougas-lykourgos [25] https://www.iesl.forth.gr/en/people/rubio-lago-luis [26] https://www.iesl.forth.gr/en/people/kruse-jann-eike [27] https://www.iesl.forth.gr/en/people/kardamaki-eva [28] https://www.iesl.forth.gr/en/people/boulogiannis-gregoris