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P. Grimes

Researcher at Smithsonian Institution

Publications -  12
Citations -  334

P. Grimes is an academic researcher from Smithsonian Institution. The author has contributed to research in topics: Cosmic microwave background & Terahertz radiation. The author has an hindex of 3, co-authored 12 publications receiving 37 citations. Previous affiliations of P. Grimes include Smithsonian Astrophysical Observatory & University of British Columbia.

Papers
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Journal ArticleDOI

Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season.

P. A. R. Ade, +91 more
TL;DR: In this paper, the authors present results from an analysis of all data taken by the BICEP2, Keck Array, and BiceP3 CMB polarization experiments up to and including the 2018 observing season.
Proceedings ArticleDOI

Receiver development for BICEP Array, a next-generation CMB polarimeter at the South Pole

TL;DR: The Bicep/Keck Array (BK) program targets the degree angular scales, where the power from primordial B-mode polarization is expected to peak, with ever increasing sensitivity and has published the most stringent constraints on inflation to date as discussed by the authors.
Journal ArticleDOI

A Compact Machinable 90° Waveguide Twist for Broadband Applications

TL;DR: In this article, a machinable 90° waveguide twist design for broadband applications from microwave to terahertz frequency was presented, which achieved a performance of −25 dB return loss for full waveguide bandwidth.
Journal Article

An SIS mixer based focal-plane array at 230 GHz

TL;DR: In this paper, a 1×4 FPN array unit based on finline SIS mixers, fed with smooth-walled feed horns, is described, which is achieved by a combination of vertically machined waveguide Y-power splitters and bow-tie cross-collaborative couplers.
Journal ArticleDOI

A Silicon Chip-Based Waveguide Directional Coupler for Terahertz Applications

TL;DR: In this article, a waveguide directional coupler design with weak coupling using silicon-based suspended coupling microstrip probes and the split-block type of construction common in integrated millimeter wave components was proposed.