Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Raman, Chandra"'
Autor:
Williamson, Jacob, Muthukrishnan, Pranav Chamakkad, Nandanwar, Srushti, Guo, Shuaifeng, Raman, Chandra
We have realized a compact optical particle counter utilizing enhancement of light scattering within a high finesse Fabry-Perot optical cavity. In contrast to laser-based approaches such as cavity ringdown spectroscopy we use the light stream from bo
Externí odkaz:
http://arxiv.org/abs/2410.05150
Realizing deterministic, high-fidelity entangling interactions--of the kind that can be utilized for efficient quantum information processing--between photons remains an elusive goal. Here, we address this long-standing issue by devising a protocol f
Externí odkaz:
http://arxiv.org/abs/2407.20368
Autor:
Martinez, Gabriela D., Li, Chao, Staron, Alexander, Kitching, John, Raman, Chandra, McGehee, William R.
Atomic beams are a longstanding technology for atom-based sensors and clocks with widespread use in commercial frequency standards. Here, we report the demonstration a chip-scale microwave atomic beam clock using coherent population trapping (CPT) in
Externí odkaz:
http://arxiv.org/abs/2303.11458
We demonstrate a key ingredient in a 'bottom-up' approach to building complex quantum matter using thermal atomic vapors. We have isolated and tracked very slowly moving individual atoms without the aid of laser cooling. Passive filtering enabled us
Externí odkaz:
http://arxiv.org/abs/2212.03970
Autor:
Li, Chao, Chai, Xiao, Zhuo, Linzhao, Wei, Bochao, Lotfi, Ardalan, Ayazi, Farrokh, Raman, Chandra
Publikováno v:
Phys. Rev. Applied 20, 034042 (2023)
We have achieved stimulated laser cooling of thermal rubidium atomic beams on a silicon chip. Following pre-collimation via a silicon microchannel array, we perform beam brightening via a blue-detuned optical molasses. Owing to the small size of the
Externí odkaz:
http://arxiv.org/abs/2208.12784
Publikováno v:
Appl. Phys. Lett. 120, 144001 (2022)
Alkali metal dispensers have become an indispensable tool in the production of atomic vapors for magnetometry, alkali vapor cell clocks, and laser cooling experiments. A primary advantage of these dispensers is that they contain alkali metal in an in
Externí odkaz:
http://arxiv.org/abs/2202.07076
We investigate magnetic solitons in an immiscible binary Bose-Einstein condensate (BEC), where the intraspecies interactions are slightly weaker than the interspecies interactions. While their density and phase profiles are analogous to dark-bright s
Externí odkaz:
http://arxiv.org/abs/2011.11462
Publikováno v:
Phys. Rev. Research 3, 012003 (2021)
Recent theoretical and experimental research has explored magnetic solitons in binary Bose-Einstein condensates (BECs). Here we demonstrate that such solitons are part of an SO(3) soliton family when embedded within a full three-component spin-1 mani
Externí odkaz:
http://arxiv.org/abs/2010.12211
Publikováno v:
Optics Letters 45.21 (2020): 5958-5961
An integrated photonic platform is proposed for strong interactions between atomic beams and annealing-free high-quality-factor (Q) microresonators. We fabricated a thin-film, air-clad SiN microresonator with a loaded Q of $1.55\times10^6$ around the
Externí odkaz:
http://arxiv.org/abs/2008.00541
Publikováno v:
Phys. Rev. Lett. 125, 030402 (2020)
Vector solitons are a type of solitary, or non-spreading wavepacket occurring in a nonlinear medium comprised of multiple components. As such, a variety of synthetic systems can be constructed to explore their properties, from nonlinear optics to ult
Externí odkaz:
http://arxiv.org/abs/1912.06672