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Fast Pump-Probe
Microscopy Imaging with Asynchronous
Optical Sampling
Ajinkya Shingote (24162759)
Naomi Ross (24162756)
Janak Bhandari (16617558)
Bikram Ghosh (14692862)
Vadim Trepalin (14215646)
Debasish Panda (24557744)
Svetlana Neretina (1426615)
Som Subhra Guria (24162765)
Petr Stepanov (1665787)
Kenji Watanabe (75040)
Takashi Taniguchi (331592)
Gregory V. Hartland (1300632)
Biophysics
Space Science
Physical Sciences not elsewhere classified
Cell Biology
Biotechnology
Chemical Sciences not elsewhere classified
Ecology
Biological Sciences not elsewhere classified
Inorganic Chemistry
Mental Health
Infectious Diseases
Computational Biology
probe microscopy imaging
high dynamic range
au nanoparticle arrays
allows rapid collection
wide time scales
specified time delays
technique allows diffraction
probe microscopy images
2 </ sub
ultimate time resolution
temporal resolution
transient signal
transient absorption
state dynamics
silicon wafer
signal magnitude
reflection data
rapidly collected
potential applications
multilayered wse
limited pump
gated integration
fast pump
carrier diffusion
also discussed
Asynchronous optical sampling (ASOPS) allows rapid collection
of
transient absorption/reflection data over wide time scales with a
high dynamic range in both time and signal magnitude. In this paper,
a method for recording transient images using ASOPS is presented based
on time-gated integration of the transient signal. This technique
allows diffraction-limited pump-probe microscopy images to be rapidly
collected at precise, user-specified time delays, with approximately
15 picoseconds time resolution. Results are presented for the excited-state
dynamics in multilayered WSe<sub>2</sub> flakes, charge-carrier diffusion
in a silicon wafer, and images of Au nanoparticle arrays that demonstrate
the spatial/temporal resolution and sensitivity of the technique.
Potential applications and the ultimate time resolution that can be
achieved are also discussed.
2026-10-01T00:00:00Z
Text
Journal contribution
10.1021/acs.jpca.6c04871.s001
https://figshare.com/articles/journal_contribution/Fast_Pump-Probe_Microscopy_Imaging_with_Asynchronous_Optical_Sampling/34046554
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