Zobrazeno 1 - 10
of 343
pro vyhledávání: '"McCarron, D A"'
Autor:
Daniel, J. R., Shaw, J. C., Wang, C., Liu, L. -R., Kendrick, B. K., Hemmerling, B., McCarron, D. J.
Publikováno v:
Physical Review A 108, 062821 (2023)
The majority of molecules proposed for laser cooling and trapping experiments have $\Sigma$-type ground states. Specifically, $^2\Sigma$ states have cycling transitions analogous to D1-lines in alkali-metal atoms while $^1\Sigma$ states offer both st
Externí odkaz:
http://arxiv.org/abs/2309.16835
Ultracold CH radicals promise a fruitful testbed for probing quantum-state controllable organic chemistry. In this work, we calculate CH vibrational branching ratios (VBRs) and rotational branching ratios (RBRs) with ground state mixing. We subsequen
Externí odkaz:
http://arxiv.org/abs/2109.03953
We present a high-power tunable deep-ultraviolet (DUV) laser that uses two consecutive cavity enhanced doubling stages with LBO and CLBO crystals to produce the fourth harmonic of an amplified homebuilt external cavity diode laser. The system generat
Externí odkaz:
http://arxiv.org/abs/2109.00963
We propose and demonstrate a novel technique that combines Raman scattering and optical cycling in molecules with diagonal Franck-Condon factors. This resonance Raman optical cycling manipulates molecules to behave like efficient fluorophores with di
Externí odkaz:
http://arxiv.org/abs/2108.09820
Autor:
Shaw, J. C., McCarron, D. J.
Publikováno v:
Phys. Rev. A 102, 041302 (2020)
We demonstrate a cryogenic buffer gas-cooled molecular beam source capable of producing bright, continuous beams of cold and slow free radicals via laser ablation over durations of up to 60~seconds. The source design uses a closed liquid helium reser
Externí odkaz:
http://arxiv.org/abs/2008.00535
Publikováno v:
Phys. Rev. A 98, 023408 (2018)
We demonstrate that a bichromatic standing-wave laser field can exert a significantly larger force on a molecule than ordinary radiation pressure. Our experiment measures the deflection of a pulsed supersonic beam of CaF molecules by a two-frequency
Externí odkaz:
http://arxiv.org/abs/1804.04184
Publikováno v:
Phys. Rev. Lett. 121, 013202 (2018)
We describe experiments demonstrating efficient transfer of molecules from a magneto-optical trap (MOT) into a conservative magnetic quadrupole trap. Our scheme begins with a blue-detuned optical molasses to cool SrF molecules to $\sim\!50$ $\mu$K. N
Externí odkaz:
http://arxiv.org/abs/1712.01462
Publikováno v:
Phys. Rev. Lett. 116, 063004 (2016)
We demonstrate a scheme for magneto-optically trapping strontium monofluoride (SrF) molecules at temperatures one order of magnitude lower and phase space densities three orders of magnitude higher than obtained previously with laser-cooled molecules
Externí odkaz:
http://arxiv.org/abs/1511.00930
We present experimental results from a new scheme for magneto-optically trapping strontium monofluoride (SrF) molecules, which provides increased confinement compared to our original work. The improved trap employs a new approach to magneto-optical t
Externí odkaz:
http://arxiv.org/abs/1412.8220
Autor:
Koeppinger, M. P., Gregory, P. D., Jenkin, D. L., McCarron, D. J., Marchant, A. L., Cornish, S. L.
We investigate magnetoassociation of ultracold Feshbach molecules from a Bose- Einstein condensate of Cs atoms and explore the spectrum of weakly bound molecular states close to the atomic threshold. By exploiting the variation of magnetic field expe
Externí odkaz:
http://arxiv.org/abs/1410.4022