| Autor: |
Hill JC, Holland WK, Kunz PD, Cox KC, Penttinen JP, Kantola E, Meyer DH |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2022 Nov 07; Vol. 30 (23), pp. 41408-41421. |
| DOI: |
10.1364/OE.473676 |
| Abstrakt: |
High-power, narrow-linewidth light sources in the visible and UV spectra are in growing demand, particularly as quantum information and sensing research proliferates. Vertical external-cavity surface-emitting lasers (VECSELs) with intra-cavity frequency conversion are emerging as an attractive platform to fill these needs. Using such a device, we demonstrate 3.5 MHz full-width half-maximum Rydberg-state spectroscopy via electromagnetically induced transparency (EIT). The laser's 690 mW of output power at a wavelength of 475 nm enables large Rabi frequencies and strong signal-to-noise ratio in shorter measurement times. In addition, we characterize the frequency stability of the VECSEL using the delayed self-heterodyne technique and direct comparison with a commercial external-cavity diode laser (ECDL). We measure the pre-doubled light's Lorentzian linewidth to be 2π × 5.3(2) kHz, and the total linewidth to be 2π × 23(2) kHz. These measurements provide evidence that intra-cavity frequency-doubled VECSELs can perform precision spectroscopy at and below the MHz level, and are a promising tool for contemporary, and future, quantum technologies. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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