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

Agile Data Acquisition: Record Polarimetry & Quantum Optics measurements
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
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
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
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
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
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
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
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
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

Heads

Prof. Rakitzis Peter
University Faculty Member

Technical Staff

Ms. Stamataki Katerina
Technician

Research Associates

Dr. Katsoprinakis George
PostDoctoral Fellow

Students

Mr. Xygkis Michalis
Ph.D. student
Mr. Koutrakis Michalis
M.Sc. student
Mr. Tazes Kostas
M.Sc. student

Alumni

Mr. Chrysovalantis Kannis
Ph.D. student
Ms. Toutoudaki Eirini
M.Sc. student
Ms. Sargianni Zoi
Undergraduate trainee
Dr. Sofikitis Dimitris
Alumni
Dr. Karaiskou Anna
Alumni
Dr. Bougas Lykourgos
Alumni
Dr. Rubio-Lago Luis
Alumni
Dr. Kruse Jann Eike
Alumni
Ms. Kardamaki Eva
Alumni
Mr. Boulogiannis Gregoris
Alumni