Design and performance of a terahertz Fourier transform spectrometer
 for axion dark matter experiments

Dona, Kristin; Liu, J.; Kurinsky, Noah; Miller, D. W.; Barry, P. S.; Chang, C.; Sonnenschein, A.

doi:10.1088/1748-0221/17/06/p06014

Cited by 4 publications

(3 citation statements)

References 60 publications

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“…Another relevant technology is the THz spectrometer of Ref. [73], also being developed for axion DM searches.…”

Section: Discussionmentioning

confidence: 99%

Axion detection with phonon-polaritons revisited

Marsh,

McDonald,

Millar

et al. 2022

Preprint

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In the presence of a background magnetic field, axion dark matter induces an electric field and can thus excite phonon-polaritons in suitable materials. We revisit the calculation of the axion-photon conversion power output from such materials, accounting for finite volume effects, and material losses. Our calculation shows how phonon-polaritons can be converted to propagating photons at the material boundary, offering a route to detecting the signal. Using the dielectric functions of GaAs, Al2O3, and SiO2, a fit to our loss model leads to a signal of lower magnitude than previous calculations. We demonstrate how knowledge of resonances in the dielectric function can directly be used to calculate the sensitivity of any material to axion dark matter. We argue that a combination of low losses encountered at O(1) K temperatures and near future improvements in detector dark count allow one to probe the QCD axion in the mass range ma ≈ 100 meV. This provides further impetus to examine novel materials and further develop detectors in the THz regime. We also discuss possible tuning methods to scan the axion mass.

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“…Another relevant technology is the THz spectrometer of Ref. [73], also being developed for axion DM searches.…”

Section: Discussionmentioning

confidence: 99%

Axion detection with phonon-polaritons revisited

Marsh,

McDonald,

Millar

et al. 2022

Preprint

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“…The result of a Fourier transformation is the frequency spectrum. This frequency spectrum states the composition of the frequency structure of a signal which will then become a frequency table (Dona et al, 2022;Kusuma, 2021). Making a frequency table using the FFT process for all possible tones.…”

Section: Discussionmentioning

confidence: 99%

Gamelan Data Repository: The Implementation of Information and Communication Technology Preserving the Balinese Traditional Musical Orchestra

Dantes

2022

j. sains. teknologi.

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As the knowledge to build Balinese orchestra are passed down from generation to another within the clan, the orchestras across makers and across areas in Bali show subtle but distinctive differences in their tones, which may be altered when the knowledge is passed down manually. Research aimed at digitalizing these distinct differences in the creations of the Balinese Orchestra across craftsmen clans in Bali is conducted as an effort for preserving the unique differences produced by the respective clans through the development of a system prototype and database for storing the tones in the orchestra sets. The steps design to attain these purposes comprised of (1) analyzing the needs of preserving the Balinese Orchestra and mapping the problems faced by traditional craftsmen in maintaining standard tones; (2) designing a system to record the standard tones among craftsmen in Bali, i.e. sampling two most two groups of craftsmen from two regencies recognized as having the most distinctive tones in Bali, namely South of Bali and North of Bali; (3) developing the prototype; and (4) developing the database of Balinese Orchestra. When the database is ready, it will provide a reference for craftsmen to standardize their sets according to the intended tradition while opening a wide possibility of uses ranging from evaluation to the creation of collaborative musical compositions across media, while at the same time preserving the standardized tone in digitalized storage.

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“…Terahertz devices based on metamaterials are of significant interest due to the impact of the lack of natural materials. In recent years, many terahertz metasurface devices have been designed to modulate terahertz waves [9][10][11][12][13][14]. Among these terahertz devices, the Pancharatnam-Berry (PB) phase-based metasurface, also called geometry metasurfaces, can manipulate the EM wavefronts by rotating the planar resonant element and demonstrates exceptional ability in controlling circularly polarized (CP) light, yielding intriguing phenomena, such as the photon spin Hall effect (PSHE) [15,16], the generation and modulation of special beams (such as vortex) [17,18].…”

Section: Introductionmentioning

confidence: 99%

Full-space terahertz metasurface based on thermally tunable InSb

Dong¹,

Sun²,

Li³

et al. 2022

J. Phys. D: Appl. Phys.

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Terahertz (THz) metasurfaces have potential research value in high-quality molecular imaging, high-speed broadband communication, biology, etc. In this paper, thermally tunable full space metasurface was proposed and analyzed by using Finite Difference Time Domain method based on Pancharatnam–Berry phase modulation and InSb temperature characteristic. At 220 K, a metasurface composed of InSb elements can simultaneously achieve efficient transmission and reflection of the incident circularly polarized light at 0.8 THz and 1.15 THz, respectively. On the contrary, at 360 K, the metasurface absorbs all of the incident terahertz waves, essentially turning off the incident beam. In addition, dynamically tunable metalenses were proposed and used to generate focused vortex light. The proposed metasurface provides a potential direction for developing an efficiency-tunable PB terahertz device in the future.

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Design and performance of a terahertz Fourier transform spectrometer for axion dark matter experiments

Cited by 4 publications

References 60 publications

Axion detection with phonon-polaritons revisited

Axion detection with phonon-polaritons revisited

Gamelan Data Repository: The Implementation of Information and Communication Technology Preserving the Balinese Traditional Musical Orchestra

Full-space terahertz metasurface based on thermally tunable InSb

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