291 citations · 1.3k across the 39 of their papers we have counts for
39 papers
Observation of Magnetically-Induced atomic transitions of the Cs 6SP line at 456 nm
Armen Sargsyan, Arevik Amiryan, Emmanuel Klinger +1
It has recently been demonstrated that magnetically induced (MI) transitions, a class of transitions forbidden at zero magnetic field, of the Cs 6SP$_{3…
Saturated absorption and electromagnetically induced transparency of residual rubidium in dense cesium vapor
Armen Sargsyan, Anahit Gogyan, David Sarkisyan
In the sealed-off cesium vapor cell studied in this work, a residual rubidium fraction of approximately 1\% was observed. We investigate the optical response of these trace R…
Features of the van der Waals Interaction on the Cesium Transition in an Optical Nanocell
Armen Sargsyan, Anahit Gogyan, David Sarkisyan
We report the first experimental study of the influence of a dielectric surface on the transmission spectrum of cesium atoms for the () transit…
Doppler-free Selective Reflection spectroscopy of the transition of Cesium using a nanofabricated vapor cell
Armen Sargsyan, Rodolphe Momier, David Sarkisyan
Selective Reflection (SR) spectroscopy of the electric dipole transition of Cesium ( nm) is performed for the first time usin…
Blue laser induced bright red fluorescence in hot cesium vapor
Armen Sargsyan, Anahit Gogyan, David Sarkisyan
We have observed laser-induced fluorescence using 456 nm laser radiation, resonant with the 6S1/2-7P3/2 transition in Cs atoms. It includes red emission lines in the range of 580-7…
Experimental Investigation of Electromagnetically Induced Transparency in Selective Reflection Spectra
Armen Sargsyan, Anahit Gogyan, David Sarkisyan
We have investigated electromagnetically induced transparency in the spectrum of selective reflection at the interface of Rb atom vapors and a dielectric nanocell window. A nanocel…
Features of alkali D line magnetically-induced transitions excited under π-polarized laser radiation
A. Sargsyan, E. Klinger, A. Amiryan +1
The impact of the optical field polarization on the spectrum of magnetically-induced transitions, a class of transitions forbidden at zero magnetic field, is studied with a weak-pr…
Influence of buffer gas on the formation of -resonances in rubidium vapors
Armen Sargsyan, Rodolphe Momier, Claude Leroy +1
The -resonance process is an accessible and effective method for obtaining narrow (down to subnatural linewidth), and contrasted resonances, using two continuous lasers and an R…
Observation of magnetically-induced transition intensity redistribution in the onset of the hyperfine Paschen-Back regime
Armen Sargsyan, Emmanuel Klinger, Ara Tonoyan +1
The Zeeman effect is an important topic in atomic spectroscopy. The induced change in transition frequencies and amplitudes finds applications in the Earth-field-range magnetometry…
Formation of narrow atomic lines of Rb in the UV region using a magnetic field
Ara Tonoyan, Armen Sargsyan, Rodolphe Momier +2
Magnetically induced (MI) transitions (F = 1 F= 3) of Rb D line are among the most promising atomic transitions for applications in l…
Formation of strongly shifted EIT resonances using "forbidden" transitions of Cesium
Armen Sargsyan, Ara Tonoyan, Rodolphe Momier +2
Atomic transitions satisfying (where stands for excited and stands for ground state) of alkali atoms have zero probability in zero magnetic fie…
Saturated absorption technique used in Potassium microcell for magnetic field sensing
Armen Sargsyan, Rodolphe Momier, Claude Leroy +1
It is demonstrated that the use of a Micrometric Thin K vapor Cell (MTC) and Saturated Absorption spectroscopy (SA) allows to form narrow atomic lines in transmission spectr…
Coherent Optical Processes on Cs D line Magnetically Induced Transitions
Armen Sargsyan, Arevik Amiryan, Ara Tonoyan +2
The increased spectral resolution allowed by the use of extremely thin vapor cells has led to the observation of interesting behaviour of alkali transitions when placed in a magnet…
Strongest Magnetically Induced Transitions in Alkali Metal Atoms with nuclear spin
Armen Sargsyan, Ara Tonoyan, Rodolphe Momier +2
The probabilities of atomic transitions between a ground and an excited level of line of any alkali metal atom are zero when no external magne…
Circular dichroism in atomic vapors: magnetically induced transitions responsible for two distinct behaviors
Armen Sargsyan, Arevik Amiryan, Ara Tonoyan +2
Atomic transitions of alkali metals for which the condition is satisfied have null probability in a zero magnetic field, while a giant increase can occur when an e…
Features of Magnetically-induced atomic transitions of Rb D line studied by Doppler-free method based on the second derivative of the absorption spectra
Armen Sargsyan, Arevik Amiryan, Emmanuel Klinger +1
We show that the Second Derivative (SD) technique of the absorption spectra of Rb atomic vapours confined in a nanocell with a thickness nm allows to achieve close…
Measurement of the atom-surface van der Waals interaction by transmission spectroscopy in a wedged nano-cell
T. Peyrot, N. Šibalić, Y. R. P. Sortais +5
We demonstrate a method for measuring atom-surface interactions using transmission spectroscopy of thermal vapors confined in a wedged nano-cell. The wedged shape of the cell allow…
Dark resonance formation with magnetically-induced transitions: extension of spectral range and giant circular dichroism
Armen Sargsyan, Ara Tonoyan, Aram Papoyan +1
Dark resonances were formed via electromagnetically induced transparency for the first time involving magnetically-induced atomic transitions of alkali metal atom, whic…
Study of EIT resonances in an anti-relaxation coated Rb vapor cell
Mangesh Bhattarai, Vineet Bharti, Vasant Natarajan +2
We demonstrate---experimentally and theoretically---that resonances obtained in electromagnetically induced transparency (EIT) can be both bright and dark. The experiments are done…
Hyperfine Paschen-Back regime of Potassium D line observed by Doppler-free spectroscopy
Armen Sargsyan, Emmanuel Klinger, Ara Tonoyan +2
Selective reflection of a laser radiation from an interface formed by a dielectric window and a potassium atomic vapour confined in a nano-cell with nm gap thickness is imple…
The Collective Lamb Shift of a Nanoscale Atomic Vapour Layer within a Sapphire Cavity
T. Peyrot, Y. R. P. Sortais, A. Browaeys +5
We measure the near-resonant transmission of light through a dense medium of potassium vapor confined in a cell with nanometer thickness in order to investigate the origin and vali…
Selective reflection from Rb layer with thickness below /12 and applications
Armen Sargsyan, Aram Papoyan, Ifan G. Hughes +2
We have studied the peculiarities of selective reflection from Rb vapor cell with thickness 70 nm, which is over an order of magnitude smaller than the resonant wavelength fo…
Collapse and revival of a Dicke-type coherent narrowing in potassium vapor confined in a nanometric-thin cell
A. Sargsyan, Y. Pashayan-Leroy, C. Leroy +1
A nanometer-thin-cell (in the direction of laser beam propagation) has been elaborated with the thickness of the atomic vapor column varying smoothly in the range of $L = \unit[50-…
Spectroscopic detection of atom-surface interactions in an atomic vapour layer with nanoscale thickness
K. A. Whittaker, J. Keaveney, I. G. Hughes +3
We measure the resonance line shape of atomic vapor layers with nanoscale thickness confined between two sapphire windows. The measurement is performed by scanning a probe laser th…