Details
| Original language | English |
|---|---|
| Pages (from-to) | 6053-6068 |
| Number of pages | 16 |
| Journal | Optics express |
| Volume | 29 |
| Issue number | 4 |
| Publication status | Published - 10 Feb 2021 |
Abstract
In this article, we present a novel spectroscopy technique that improves the signal-to-shot-noise ratio without the need to increase the laser power. Detrimental effects by technical noise sources are avoided by frequency-modulation techniques (frequency up-shifting). Superimposing the signal on non-classical states of light leads to a reduced quantum noise floor. Our method reveals in a proof-of-concept experiment small signals at Hz to kHz frequencies even below the shot noise limit. Our theoretical calculations fully support our experimental findings. The proposed technique is interesting for applications such as high-precision cavity spectroscopy, e.g., for explosive trace gas detection where the specific gas might set an upper limit for the laser power employed.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Optics express, Vol. 29, No. 4, 10.02.2021, p. 6053-6068.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - High-precision cavity spectroscopy using high-frequency squeezed light
AU - Junker, Jonas
AU - Wilken, Dennis
AU - Huntington, Elanor
AU - Heurs, Michèle
N1 - Funding Information: Deutsche Forschungsgemeinschaft (Excellence PhoenixD (EXC 2122, Project ID 390833453), Excellence QuantumFrontiers (EXC 2123, Project ID 390837967)).
PY - 2021/2/10
Y1 - 2021/2/10
N2 - In this article, we present a novel spectroscopy technique that improves the signal-to-shot-noise ratio without the need to increase the laser power. Detrimental effects by technical noise sources are avoided by frequency-modulation techniques (frequency up-shifting). Superimposing the signal on non-classical states of light leads to a reduced quantum noise floor. Our method reveals in a proof-of-concept experiment small signals at Hz to kHz frequencies even below the shot noise limit. Our theoretical calculations fully support our experimental findings. The proposed technique is interesting for applications such as high-precision cavity spectroscopy, e.g., for explosive trace gas detection where the specific gas might set an upper limit for the laser power employed.
AB - In this article, we present a novel spectroscopy technique that improves the signal-to-shot-noise ratio without the need to increase the laser power. Detrimental effects by technical noise sources are avoided by frequency-modulation techniques (frequency up-shifting). Superimposing the signal on non-classical states of light leads to a reduced quantum noise floor. Our method reveals in a proof-of-concept experiment small signals at Hz to kHz frequencies even below the shot noise limit. Our theoretical calculations fully support our experimental findings. The proposed technique is interesting for applications such as high-precision cavity spectroscopy, e.g., for explosive trace gas detection where the specific gas might set an upper limit for the laser power employed.
UR - http://www.scopus.com/inward/record.url?scp=85101264370&partnerID=8YFLogxK
U2 - 10.1364/OE.416713
DO - 10.1364/OE.416713
M3 - Article
C2 - 33726135
AN - SCOPUS:85101264370
VL - 29
SP - 6053
EP - 6068
JO - Optics express
JF - Optics express
SN - 1094-4087
IS - 4
ER -