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Mollow-like Triplets in Ultrafast Resonant Absorption

Stenquist, Axel LU ; Zapata, Felipe ; Olofsson, Edvin LU ; Liao, Yijie LU ; Svegborn, Elna LU ; Bruhnke, Jakob Nicolai LU orcid ; Verdozzi, Claudio LU and Dahlström, Jan Marcus LU (2024) In Physical Review Letters 133(6).
Abstract

We show that resonant absorption of smooth laser fields can yield Mollow-like triplet patterns. General conditions for such triplets are derived and illustrated with a super-Gaussian pulse sequence. Gaussian pulses cannot exhibit triplets, super-Gaussian pulses can form triplets depending on the pulse area, and flattop pulses can produce absorption triplets after one Rabi cycle. Our results are compared side by side with resonance fluorescence to emphasize similarities and differences between these unlike observables. In the high-intensity limit, we show that the central absorption peak is asymmetric, which we attribute to nonlinear photoionization, beyond two-level atomic physics.

Please use this url to cite or link to this publication:
author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
133
issue
6
article number
063202
publisher
American Physical Society
external identifiers
  • scopus:85201303125
  • pmid:39178456
ISSN
0031-9007
DOI
10.1103/PhysRevLett.133.063202
language
English
LU publication?
yes
id
965adace-3eeb-402a-879f-ed310fd9c489
date added to LUP
2024-10-30 11:58:22
date last changed
2025-06-12 07:33:01
@article{965adace-3eeb-402a-879f-ed310fd9c489,
  abstract     = {{<p>We show that resonant absorption of smooth laser fields can yield Mollow-like triplet patterns. General conditions for such triplets are derived and illustrated with a super-Gaussian pulse sequence. Gaussian pulses cannot exhibit triplets, super-Gaussian pulses can form triplets depending on the pulse area, and flattop pulses can produce absorption triplets after one Rabi cycle. Our results are compared side by side with resonance fluorescence to emphasize similarities and differences between these unlike observables. In the high-intensity limit, we show that the central absorption peak is asymmetric, which we attribute to nonlinear photoionization, beyond two-level atomic physics.</p>}},
  author       = {{Stenquist, Axel and Zapata, Felipe and Olofsson, Edvin and Liao, Yijie and Svegborn, Elna and Bruhnke, Jakob Nicolai and Verdozzi, Claudio and Dahlström, Jan Marcus}},
  issn         = {{0031-9007}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Mollow-like Triplets in Ultrafast Resonant Absorption}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.133.063202}},
  doi          = {{10.1103/PhysRevLett.133.063202}},
  volume       = {{133}},
  year         = {{2024}},
}