Optical-parametric-amplification-enhanced background-free spectroscopy

Mingchen Liu; Robert M. Gray; Arkadev Roy; Luis Ledezma; Alireza Marandi

doi:10.1364/OL.520848

Optics Letters
Vol. 49,
Issue 11,
pp. 2914-2917
(2024)
•https://doi.org/10.1364/OL.520848

Optical-parametric-amplification-enhanced background-free spectroscopy

Mingchen Liu, Robert M. Gray, Arkadev Roy, Luis Ledezma, and Alireza Marandi

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
Mingchen Liu, Robert M. Gray, Arkadev Roy, Luis Ledezma, and Alireza Marandi, "Optical-parametric-amplification-enhanced background-free spectroscopy," Opt. Lett. 49, 2914-2917 (2024)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Check for updates

Abstract

Traditional absorption spectroscopy has a fundamental difficulty in resolving small absorbance from a strong background due to the instability of laser sources. Existing background-free methods in broadband vibrational spectroscopy help to alleviate this problem but face challenges in realizing either low extinction ratios or time-resolved field measurements. Here, we introduce optical-parametric-amplification-enhanced background-free spectroscopy, in which the excitation background is first suppressed by an interferometer, and then the free-induction decay that carries molecular signatures is selectively amplified. We show that this method can improve the limit of detection in linear interferometry by order(s) of magnitude without requiring lower extinction ratios or a time-resolved measurement, which can benefit sensing applications in detecting trace species.

Full Article | PDF Article

More Like This

Efficient single-cycle mid-infrared femtosecond laser pulse generation by spectrally temporally cascaded optical parametric amplification with pump energy recycling

Hao Yuan, Pei Huang, Tongyu Feng, Yahui Ma, Xianglin Wang, Huabao Cao, Yishan Wang, Wei Zhao, and Yuxi Fu
Opt. Lett. 49(9) 2269-2272 (2024)

Ultrabroadband two-dimensional electronic spectroscopy in the pump–probe geometry using conventional optics

Matthew S. Barclay, Nicholas D. Wright, Paul Cavanaugh, Ryan D. Pensack, Eric W. Martin, and Daniel B. Turner
Opt. Lett. 49(8) 2065-2068 (2024)

Reference-free dual-comb spectroscopy with inbuilt coherence

Mikhail Roiz, Santeri Larnimaa, Touko Uotila, Mikko Närhi, and Markku Vainio
Opt. Lett. 49(9) 2473-2476 (2024)

Previous Article Next Article

Supplementary Material (1)

Name	Description
Supplement 1	Supplemental Information

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.