State-of-the-Art Technologies in Piezoelectric Deformable Mirror Design

V Toporovsky, A Kudryashov, A Skvortsov, A Rukosuev… - Photonics, 2022 - mdpi.com
In this work, two advanced technologies were applied for manufacturing a bimorph
wavefront corrector: laser ablation, to vaporize conductive silver coating from piezoceramic …

Experiment for cryogenic large-aperture intensity mapping: instrument design

ER Switzer, EM Barrentine, G Cataldo… - Journal of …, 2021 - spiedigitallibrary.org
The experiment for cryogenic large-aperture intensity mapping (EXCLAIM) is a balloon-
borne telescope designed to survey star formation in windows from the present to z= 3.5 …

Simons observatory: broadband metamaterial antireflection cuttings for large-aperture alumina optics

JE Golec, S Sutariya, R Jackson, J Zimmerman… - Applied Optics, 2022 - opg.optica.org
We present the design, fabrication, and measured performance of metamaterial
antireflection cuttings (ARCs) for large-format alumina filters operating over more than an …

Hybrid multiphase Fresnel lenses on silicon wafers for terahertz frequencies

SR Ayyagari, S Indrišiūnas… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The hybrid multiphase Fresnel lenses (H-MPFLs) were developed on silicon wafer at the
selected frequency of 585 GHz. For this reason, the design of a standard MPFL was …

Lossless matching layer for silicon lens arrays at 500 GHz using laser ablated structures

J Bueno, S Bosma, T Bußkamp-Alda… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
We present the design, fabrication and characterization of a broadband lossless matching
layer for silicon lens arrays. The proposed matching layer is based on silicon frusta …

Development of the Low Frequency Telescope focal plane detector arrays for LiteBIRD

T Ghigna, A Suzuki, B Westbrook, C Raum… - arXiv preprint arXiv …, 2024 - arxiv.org
LiteBIRD, a forthcoming JAXA mission, aims to accurately study the microwave sky within
the 40-400 GHz frequency range divided into 15 distinct nominal bands. The primary …

Performance of a 200 mm Diameter Achromatic HWP with Laser-Ablated Sub-Wavelength Structures

R Takaku, T Ghigna, S Hanany, Y Hoshino… - Journal of Low …, 2023 - Springer
We laser-ablated sub-wavelength structures (SWS) on 200 mm diameter birefringent
sapphire disks to produce broadband anti-reflection coating (ARC). The disks were …

Exploration to early universe by Josephson Junction Switching Current Detector

D Kondo - arXiv preprint arXiv:2407.13630, 2024 - arxiv.org
In this paper, we propose a method to probe a Stochastic Gravitational Wave Background
(SGWB) with Josephson Junction Switching Current Detector (JJSCD). The sensitivity for the …

Broadband multi-layer anti-reflection coatings with mullite and Duroid for half-wave plates and alumina filters for CMB polarimetry

K Sakaguri, M Hasegawa, Y Sakurai, C Hill… - Journal of Low …, 2022 - Springer
A broadband two-layer antireflection (AR) coating was developed for use on a sapphire half-
wave plate (HWP) and an alumina infrared (IR) filter for cosmic microwave background …

Anti-reflection coating with mullite and Duroid for large-diameter cryogenic sapphire and alumina optics

K Sakaguri, M Hasegawa, Y Sakurai, J Sugiyama… - Applied Optics, 2024 - opg.optica.org
We developed a broadband two-layer anti-reflection (AR) coating for use on a sapphire half-
wave plate (HWP) and an alumina infrared (IR) filter for the cosmic microwave background …