Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Hughes Ifan G."'
Autor:
Häupl, Daniel R, Higgins, Clare R, Pizzey, Danielle, Briscoe, Jack D, Wrathmall, Steven A, Hughes, Ifan G, Löw, Robert, Joly, Nicolas Y
Laser spectroscopy of hot atomic vapours has been studied extensively. Theoretical models that predict the absolute value of the electric susceptibility are crucial for optimising the design of photonic devices that use hot vapours, and for extractin
Externí odkaz:
http://arxiv.org/abs/2410.19916
We investigate fine structure changing collisions in $^{87}$Rb vapour upon D2 excitation in a thermal vapour at 350 K; the atoms are placed in a 0.6 T axial magnetic field in order to gain access to the hyperfine Pashen-Back regime. Following optical
Externí odkaz:
http://arxiv.org/abs/2408.11689
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 57 175401 (2024)
The Kramers-Kronig relations are a pivotal foundation of linear optics and atomic physics, embedding a physical connection between the real and imaginary components of any causal response function. A mathematically equivalent, but simpler, approach i
Externí odkaz:
http://arxiv.org/abs/2403.00950
Autor:
Erdélyi Robertus, Korsós Marianna B., Huang Xin, Yang Yong, Pizzey Danielle, Wrathmall Steven A., Hughes Ifan G., Dyer Martin J., Dhillon Vikram S., Belucz Bernadett, Brajša Roman, Chatterjee Piyali, Cheng Xuewu, Deng Yuanyong, Domínguez Santiago Vargas, Joya Raúl, Gömöry Peter, Gyenge Norbert G., Hanslmeier Arnold, Kucera Ales, Kuridze David, Li Faquan, Liu Zhong, Xu Long, Mathioudakis Mihalis, Matthews Sarah, McAteer James R.T., Pevtsov Alexei A., Pötzi Werner, Romano Paolo, Shen Jinhua, Temesváry János, Tlatov Andrey G., Triana Charles, Utz Dominik, Veronig Astrid M., Wang Yuming, Yan Yihua, Zaqarashvili Teimuraz, Zuccarello Francesca
Publikováno v:
Journal of Space Weather and Space Climate, Vol 12, p 2 (2022)
The Solar Activity Magnetic Monitor (SAMM) Network (SAMNet) is a future UK-led international network of ground-based solar telescope stations. SAMNet, at its full capacity, will continuously monitor the Sun’s intensity, magnetic, and Doppler veloci
Externí odkaz:
https://doaj.org/article/bb3757f31cdd4bd883696c991a0a4d01
Autor:
Alqarni, Sharaa A., Briscoe, Jack D., Higgins, Clare R., Logue, Fraser D., Pizzey, Danielle, Robertson-Brown, Thomas G., Hughes, Ifan G.
Atomic bandpass filters are used in a variety of applications due to their narrow bandwidths and high transmission at specific frequencies. Predominantly these filters in the Faraday (Voigt) geometry, using an applied axial(transverse) magnetic field
Externí odkaz:
http://arxiv.org/abs/2308.16643
Non-Hermitian physics is responsible for many of the counter-intuitive effects observed in optics research opening up new possibilities in sensing, polarization control and measurement. A hallmark of non-Hermitian matrices is the possibility of non-o
Externí odkaz:
http://arxiv.org/abs/2303.00081
Publikováno v:
Journal of Physics B, Vol. 56, Issue 10, pp. 105403 (2023)
Cascading light through two thermal vapour cells has been shown to improve the performance of atomic filters that aim to maximise peak transmission over a minimised bandpass window. In this paper, we explore the atomic physics responsible for the ope
Externí odkaz:
http://arxiv.org/abs/2212.08562
Publikováno v:
Optics Letters, Vol. 47, Issue 12, pp. 2975-2978 (2022)
Single-cell magneto-optical Faraday filters find great utility and are realized with either 'wing' or 'line center' spectral profiles. We show that cascading a second cell with independent axial (Faraday) or transverse (Voigt) magnetic field leads to
Externí odkaz:
http://arxiv.org/abs/2203.14767
Autor:
Higgins, Clare R, Hughes, Ifan G
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 54 165403 (2021)
We observe EIT in a V-system in a thermal rubidium-87 vapour in the hyperfine Paschen-Back regime, realised with a 0.6 T axial magnetic field. In this regime energy levels are no longer degenerate and EIT features from different initial states are di
Externí odkaz:
http://arxiv.org/abs/2104.10613
Publikováno v:
Review of Scientific Instruments 92, 015117 (2021)
We present a novel solution to automated beam alignment optimization. This device is based on a Raspberry Pi computer, stepper motors, commercial optomechanics and electronic devices, and the open source machine learning algorithm M-LOOP. We provide
Externí odkaz:
http://arxiv.org/abs/2010.15246