Zobrazeno 1 - 10
of 415
pro vyhledávání: '"Milner, Alexander"'
Autor:
Milner, Alexander A., MacPhail-Bartley, Ian, Preocanin, Katarina, Dasgupta, Shroyon, Peng, Xuanshan, Milner, Valery
We experimentally demonstrate control of molecular rotation in bulk superfluid $^4\mathrm{He}$. Metastable helium dimers, $\mathrm{He}_2^*$, are rotationally excited by a periodic train of linearly polarized femtosecond laser pulses. We show that the
Externí odkaz:
http://arxiv.org/abs/2311.13077
Autor:
Milner, Alexander A., Milner, Valery
We experimentally demonstrate a controlled transfer of angular momentum to roton pairs in superfluid helium. The control is executed with an optical centrifuge and detected with coherent time- and frequency-resolved Raman scattering. We show that the
Externí odkaz:
http://arxiv.org/abs/2306.01955
Molecules immersed in liquid helium are excellent probes of superfluidity. Their electronic, vibrational and rotational dynamics provide valuable clues about the superfluid at the nanoscale. Here we report on the experimental study of the laser-induc
Externí odkaz:
http://arxiv.org/abs/2304.03882
Autor:
Tutunnikov, Ilia, Steinitz, Uri, Gershnabel, Erez, Hartmann, Jean-Michel, Milner, Alexander A., Milner, Valery, Averbukh, Ilya Sh.
Publikováno v:
Phys. Rev. Research 4, 013212 (2022)
We present a detailed theoretical and experimental study of the rotation of the plane of polarization of light traveling through a gas of fast-spinning molecules. This effect is similar to the polarization drag phenomenon predicted by Fermi a century
Externí odkaz:
http://arxiv.org/abs/2112.08795
Publikováno v:
Phys. Rev. Lett. 127, 073901 (2021)
We report the experimental observation of the rotation of the polarization plane of light propagating in a gas of fast-spinning molecules (molecular super-rotors). In the observed effect, related to Fermi's prediction of "polarization drag" by a rota
Externí odkaz:
http://arxiv.org/abs/2103.09817
Autor:
Milner, Alexander A., Milner, Valery
Publikováno v:
Phys. Rev. A 103, 041103 (2021)
We demonstrate experimentally a method of varying the degree of directionality in laser-induced molecular rotation. To control the ratio between the number of clockwise and counter-clockwise rotating molecules (with respect to a fixed laboratory axis
Externí odkaz:
http://arxiv.org/abs/2103.07077
Since its invention in 1999, optical centrifuge has become a powerful tool for controlling molecular rotation and studying molecular dynamics and molecular properties at extreme levels of rotational excitation. The technique has been applied to a var
Externí odkaz:
http://arxiv.org/abs/1912.12507
Autor:
Milner, Alexander A.
The spectral, temperature and magnetic field dependencies of the linear dichroism in the reflection of light from the surface of an undoped single crystal of La2CuO4 are studied. The changes of the dichroism absolute value and its response to the ext
Externí odkaz:
http://arxiv.org/abs/1909.12951
Autor:
Tutunnikov, Ilia, Floß, Johannes, Gershnabel, Erez, Brumer, Paul, Averbukh, Ilya Sh., Milner, Alexander A., Milner, Valery
Publikováno v:
Phys. Rev. A 101, 021403 (2020)
Molecular chirality is an omnipresent phenomenon of fundamental significance in physics, chemistry and biology. For this reason, search for novel techniques for enantioselective control, detection and separation of chiral molecules is of particular i
Externí odkaz:
http://arxiv.org/abs/1907.13332
Autor:
Milner, Alexander A., Fordyce, Jordan A. M., MacPhail-Bartley, Ian, Wasserman, Walter, Tutunnikov, Ilia, Averbukh, Ilya Sh., Milner, V.
Publikováno v:
Phys. Rev. Lett. 122, 223201 (2019)
We report on the first experimental demonstration of enantioselective rotational control of chiral molecules with a laser field. In our experiments, two enantiomers of propylene oxide are brought to accelerated unidirectional rotation by means of an
Externí odkaz:
http://arxiv.org/abs/1903.06878