Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Sambit Bikas Pal"'
Publikováno v:
Proc. Of the 7th Asian Spectroscopy Conference (ASC 2020).
We present spectroscopic measurements of the long range states of the 6Li40K molecule near its Li(42S1/2) + K(42P3/2) asymptote which in combination with existing data in the short range lead to the full characterization of the B1Π potential with hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4dc435ca5d7e63c8b0f6530e2819d45
https://doi.org/10.32655/asc_8-10_dec2020.49
https://doi.org/10.32655/asc_8-10_dec2020.49
Autor:
A. Laugharn, Kai Dieckmann, Sambit Bikas Pal, Sofia Botsi, S. Kumar, I. Čepaitė, A. Yang, Mark Lam
Publikováno v:
Physical review letters. 124(13)
Starting from weakly bound Feshbach molecules, we demonstrate a two-photon pathway to the dipolar ground state of bi-alkali molecules that involves only singlet-to-singlet optical transitions. This pathway eliminates the search for a suitable interme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9072a69411564f490cff977e32f8fbe
https://pubmed.ncbi.nlm.nih.gov/32302184
https://pubmed.ncbi.nlm.nih.gov/32302184
We use two continuous-wave (CW) laser beams of 780 nm and 515 nm to optically drive $^{85}$Rb atoms in a heated vapor cell to a low-lying Rydberg state 10D$_{5/2}$. We observe a collimated ultraviolet (UV) beam at 311 nm, corresponding to the transit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2ceff5c945f85b78d9dae30e0c87357
https://doi.org/10.1364/ol.44.002931
https://doi.org/10.1364/ol.44.002931
Publikováno v:
Optics Letters. 46:1017
We optically excite $^{85}$Rb atoms in a heated vapor cell to a low-lying Rydberg state 10D$_{5/2}$ and observe directional terahertz (THz) beams at 3.3 THz and 7.8 THz. These THz fields are generated by amplified spontaneous emission from the 10D$_{
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2e7ac55021613caf79cb4440188ebad
https://doi.org/10.1364/ol.418618
https://doi.org/10.1364/ol.418618
Autor:
Mark Choong Lam, Christian Gross, Jingshan Han, Wenhui Li, Sambit Bikas Pal, Martin Kiffner, Thibault Vogt
We demonstrate microwave-to-optical conversion using six-wave mixing in cold $^{87}\mathrm{Rb}$ atoms where the microwave field couples to two Rydberg states and propagates collinearly with the converted optical field. Our experiment is performed wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af0f6546a794fd3da8d3bf3908b0dd57
http://arxiv.org/abs/1810.09722
http://arxiv.org/abs/1810.09722
Publikováno v:
Optics Letters. 41:5527
We report on a transfer-lock laser frequency stabilization that utilizes a frequency comb (FC) and a radio frequency counter referenced to a GPS frequency standard to compensate for the frequency drifts of two lasers, which are locked to a single pas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad6f19fdd87b5aec1b98160c3a381958
https://doi.org/10.1364/ol.41.005527
https://doi.org/10.1364/ol.41.005527
Autor:
Ayan Banerjee, Ratnesh Kumar Gupta, Basudev Roy, Arijit Haldar, Sambit Bikas Pal, Nirmalya Ghosh
Publikováno v:
SPIE Proceedings.
Back-focal plane interferometry is typically used to determine displacements of a trapped bead which lead to trapping force measurements in optical tweezers. In most cases, intensity shifts of the back-scattered interference pattern due to displaceme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfacc2b1a695670e134e74c34408ea68
https://doi.org/10.1117/12.921360
https://doi.org/10.1117/12.921360
A photonic force microscope comprises of an optically trapped micro-probe and a position detection system to track the motion of the probe. Signal collection for motion detection is often carried out using the backscattered light off the probe - howe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2419edef527f0912c1f09a583dedea2e
http://arxiv.org/abs/1107.3427
http://arxiv.org/abs/1107.3427
Micro-particle self assembly under the influence of optical forces produced by higher order optical beams or by projection of a hologram into the trapping volume is well known. In this paper, we report the spontaneous formation of a ring of identical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b07f255f557e556a5516739ca1f644f5
Publikováno v:
Physical Review A. 81
We report magnetic trapping of Yb in the excited P-3(2) state. This state, with a lifetime of 15 s, could play an important role in studies ranging from optical clocks and quantum computation to the search for a permanent electric dipole moment. Yb a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8090ba43e170fc610f2bd579fef0947
https://doi.org/10.1103/physreva.81.033424
https://doi.org/10.1103/physreva.81.033424