Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Louis Baum"'
Publikováno v:
New Journal of Physics, Vol 17, Iss 4, p 045003 (2015)
Vibrational relaxation of strontium monohydroxide (SrOH) molecules in collisions with helium (He) at 2 K is studied. We find the diffusion cross section of SrOH at 2.2 K to be ${{\sigma }_{{\rm d}}}=(5\pm 2)\times {{10}^{-14}}\;{\rm c}{{{\rm m}}^{2}}
Externí odkaz:
https://doaj.org/article/480020ec9a1d408baa7f7fda6ce95708
Autor:
John M. Doyle, Benjamin Augenbraun, Loic Anderegg, Debayan Mitra, Louis Baum, Calder Miller, Christian Hallas, Nathaniel B. Vilas, Shivam Raval
Ultracold polyatomic molecules have potentially wide-ranging applications in quantum simulation and computation, particle physics, and quantum chemistry. For atoms and small molecules, direct laser cooling has proven to be a powerful tool for quantum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ce738eafed3e25357f830d88718afb4
Autor:
John M. Doyle, Benjamin Augenbraun, Christian Hallas, Debayan Mitra, Louis Baum, Nathaniel B. Vilas, Shivam Raval
We study optical cycling in the polar free radical calcium monohydroxide (CaOH) and establish an experimental path towards scattering $\ensuremath{\sim}{10}^{4}$ photons. We report rovibronic branching ratio measurements with precision at the $\ensur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::509e5ebdb243480b01f5425788eb986d
http://arxiv.org/abs/2006.01769
http://arxiv.org/abs/2006.01769
Autor:
Debayan Mitra, John M. Doyle, Nathaniel B. Vilas, Christian Hallas, Benjamin Augenbraun, Louis Baum, Shivam Raval
We demonstrate a 1D magneto-optical trap of the polar free radical calcium monohydroxide (CaOH). A quasi-closed cycling transition is established to scatter $\sim 10^3$ photons per molecule, predominantly limited by interaction time. This enables rad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5278283a6d3c2ef01700709b2a84f035
Publikováno v:
Physical Review Letters. 120
We demonstrate the coherent optical bichromatic force on a molecule, the polar free radical strontium monohydroxide (SrOH). A dual-frequency retro-reflected laser beam addressing the $\tilde{X}^2\Sigma^+\leftrightarrow\tilde{A}^2\Pi_{1/2}$ electronic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1010bf0b0080d4d552d060dc5bd7dfdc
https://doi.org/10.1103/physrevlett.120.063205
https://doi.org/10.1103/physrevlett.120.063205
Publikováno v:
American Journal of Physics. 81:112-119
The removal of PuBe and AmBe neutron sources from many university teaching laboratories (due to heightened security issues) has often left a void in teaching various aspects of neutron physics. We have recently replaced such sources with sealed 252Cf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b4a37b54794a10ae5fd5781a9054cdb
https://doi.org/10.1119/1.4769032
https://doi.org/10.1119/1.4769032
Publikováno v:
Chemphyschem : a European journal of chemical physics and physical chemistry. 17(22)
An experimentally feasible strategy for direct laser cooling of polyatomic molecules with six or more atoms is presented. Our approach relies on the attachment of a metal atom to a complex molecule, where it acts as an active photon cycling site. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97c803141af0f16bc4d0bfc67d06168e
https://pubmed.ncbi.nlm.nih.gov/27759904
https://pubmed.ncbi.nlm.nih.gov/27759904
Autor:
Ivan Kozyryev, Louis Baum, Kyle Matsuda, Alexander P. Sedlack, John M. Doyle, Benjamin Augenbraun, Loic Anderegg
We perform magnetically-assisted Sisyphus laser cooling of the triatomic free radical strontium monohydroxide (SrOH). This is achieved with principal optical cycling in the rotationally closed $P\left(N"=1\right)$ branch of either the $\tilde{X}^{2}\
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c44d61bd9df4f6cf79f4a326285ab0d9
http://arxiv.org/abs/1609.02254
http://arxiv.org/abs/1609.02254
Autor:
Louis Baum
Publikováno v:
Logos. 11:134-138
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1852a3dc9aefce90e04867811d456744
https://doi.org/10.2959/logo.2000.11.3.134
https://doi.org/10.2959/logo.2000.11.3.134
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 49:134002
We demonstrate multiple photon cycling and radiative force deflection on the triatomic free radical strontium monohydroxide (SrOH). Optical cycling is achieved on SrOH in a cryogenic buffer-gas beam by employing the rotationally closed $P\left(N''=1\
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d55ecf65cd2f65ab2b81e690644a346
https://doi.org/10.1088/0953-4075/49/13/134002
https://doi.org/10.1088/0953-4075/49/13/134002