Continuous ultraviolet to blue-green astrocomb
Continuous ultraviolet to blue-green astrocomb
复制标题
连续紫外至蓝绿色星梳
DOI:
10.1038/s41467-024-45924-6
复制
发表时间:
2024
影响因子:
16.6
通讯作者:
Cheng Y
中科院分区:
文献类型:
--
作者:
Cheng Y
Cosmological and exoplanetary science using transformative telescopes like the ELT will demand precise calibration of astrophysical spectrographs in the blue-green, where stellar absorption lines are most abundant. Astrocombs—lasers providing a broadband sequence of regularly-spaced optical frequencies on a multi-GHz grid—promise an atomically-traceable calibration scale, but their realization in the blue-green is challenging for current infrared-laser-based technology. Here, we introduce a concept achieving a broad, continuous spectrum by combining second-harmonic generation and sum-frequency-mixing in an MgO:PPLN waveguide to generate 390–520 nm light from a 1 GHz Ti:sapphire frequency comb. Using a Fabry-Pérot filter, we extract a 30 GHz sub-comb spanning 392–472 nm, visualizing its thousands of modes on a high-resolution spectrograph. Experimental data and simulations demonstrate how the approach can bridge the spectral gap present in second-harmonic-only conversion. Requiring only100 pJ pulses, our concept establishes a new route to broadband UV-visible generation at GHz repetition rates.
登录
查看更多内容
DOI:
10.1364/josab.427086
发表时间:
2021
期刊:
Journal of the Optical Society of America B
影响因子:
--
作者:
Rutledge, Jay;Catanese, Anthony;Hickstein, Daniel D.;Diddams, Scott A.;Allison, Thomas K.;Kowligy, Abijith S.
通讯作者:
Kowligy, Abijith S.
DOI:
--
发表时间:
2023
期刊:
2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
影响因子:
--
作者:
M. Ludwig;Furkan Ayhan;T. Voumard;T. Wildi;Mahmoud A. A. Gaafar;Davide Grassani;E. Obrzud;Tobias M. Schmidt;F. Bouchy;L. G. Villanueva;V. Brasch;Tobias Herr
通讯作者:
Tobias Herr
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
A. Glenday;Chih;N. Langellier;G. Chang;Li;G. Fűrész;A. Zibrov;F. Kärtner;D. Phillips;D. Sasselov;A. Szentgyorgyi;R. Walsworth
通讯作者:
R. Walsworth
DOI:
10.48550/arxiv.1310.3163
发表时间:
2013
期刊:
arXiv e-prints
影响因子:
--
作者:
Maiolino R.
通讯作者:
Maiolino R.
DOI:
--
发表时间:
2013
期刊:
Optics & Photonics - Optical Engineering + Applications
影响因子:
--
作者:
R. Probst;T. Steinmetz;T. Wilken;G. K. L. Wong;H. Hundertmark;S. Stark;P. Russell;T. Hänsch;Ronald Holzwarth;T. Udem
通讯作者:
T. Udem