Schedule Logo
Poster Session

Poster Session I (4pm-6pm CDT)

4:00 pm – 6:00 pm, Tuesday June 4 Session D00
Topics:
PrevNext

Sub-nanoseconds pulse generation at 780 nm from a continuous wave laser for ultrafast Rydberg excitation.

Poster 113
Presenter: Robin kocik (Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Japan )
Authors: Yeelai Chew (Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Japan ), Takuya Matsubara (Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Japan ), Tirumalasetty Panduranga Mahesh (Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Japan ), Takafumi Tomita (Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Japan ), Kenji Ohmori (Institute for Molecular Science, Natl Inst of Natural Sci), Sylvain DE LESELEUC (Institute for Molecular Science. NINS. Japan)

Rydberg atoms are remarkable candidates for realizing ultrafast quantum operations, due to their huge electronic orbitals offering dipole-dipole interaction reaching the GHz range at micrometer range distance (C3 ~ GHz.μm3).  While the standard approach to produce such states used continuous wave laser (C-W) performing excitation on the microsecond timescale, in our group we rather aim at producing Rydberg state in a sub-nanosecond timescale, only limited by the finite splitting energy levels. In a previous work, we have demonstrated ~10 ps excitation of a single Rydberg level (100 GHz separation) using pulsed laser technology [1]. Now, we want to define a two-level system in the hyperfine structure of 87Rb (6.8 GHz) and perform hyperfine-resolved ultrafast excitation. We thus developed a novel system to generate a 780nm pulse with arbitrary duration from 100 ps to 1 ns, allowing to resolve the hyperfine structure (>100 ps) while still being much faster than the intermediate state lifetime (5P, 25 ns). This system allows to excite atoms from the ground state to the 5P state, before being excited to Rydberg level in a second step.

Funding acknowledgement

This work was supported by MEXT Quantum Leap Flagship Program (MEXT Q-LEAP) JPMXS0118069021 and JST Moonshot R&D Program Grant Number JPMJMS2269.

POSTERS (157)