Critical-angle transmission grating technology development for high resolving power soft x-ray spectrometers on Arcus and Lynx

RK Heilmann, AR Bruccoleri, J Song… - Optics for EUV, X …, 2017 - spiedigitallibrary.org
Soft x-ray spectroscopy with high resolving power (R= λ/Δλ) and large effective area (A)
addresses numerous unanswered science questions about the physical laws that lead to the …

Nanostructure engineering in organic semiconductor devices toward interface matching

M Bok, JH Jeong, E Lim - Nanotechnology, 2024 - iopscience.iop.org
The performance of organic semiconductor devices with heterojunctions between the
organic semiconductors and electrodes can be improved by reducing the contact resistance …

Simple spatially resolved period measurement of chirped pulse compression gratings

F Bienert, C Röcker, T Graf, MA Ahmed - Optics Express, 2023 - opg.optica.org
We present an easy-to-implement and low-cost setup for the precise measurement of the
period chirp of diffraction gratings offering a resolution of 15 pm and reasonable scan …

Demonstration of resolving power λ/Δλ> 10,000 for a space-based x-ray transmission grating spectrometer

RK Heilmann, J Kolodziejczak, AR Bruccoleri… - Applied Optics, 2019 - opg.optica.org
We present measurements of the resolving power of a soft x-ray spectrometer consisting of
200 nm period lightweight, alignment-insensitive critical-angle transmission (CAT) gratings …

Arcus: exploring the formation and evolution of clusters, galaxies, and stars

RK Smith, M Abraham, R Allured… - UV, X-Ray, and …, 2017 - spiedigitallibrary.org
Arcus, a Medium Explorer (MIDEX) mission, was selected by NASA for a Phase A study in
August 2017. The observatory provides high-resolution soft X-ray spectroscopy in the 12 …

Lynx soft x-ray critical-angle transmission grating spectrometer

HM Günther, RK Heilmann - Journal of Astronomical …, 2019 - spiedigitallibrary.org
Lynx is one of four Surveyor-class mission concept studies for the 2020 Astrophysics
Decadal Survey. It features an x-ray telescope with an unprecedented collecting area of 2 …

Blazed transmission grating technology development for the Arcus x-ray spectrometer explorer

RK Heilmann, AR Bruccoleri, J Song… - … 2018: Ultraviolet to …, 2018 - spiedigitallibrary.org
Arcus is a high-resolution soft x-ray spectroscopy mid-size Explorer mission selected for a
NASA Phase A concept study. It is designed to explore structure formation through …

Progress in x-ray critical-angle transmission grating technology development

RK Heilmann, AR Bruccoleri, J Song… - Optics for EUV, X …, 2019 - spiedigitallibrary.org
High resolution absorption and emission line spectroscopy in the soft x-ray band are
promising techniques to measure hot baryon distributions in extended galaxy halos, galaxy …

Manufacture and performance of blazed soft x-ray transmission gratings for Arcus and Lynx

RK Heilmann, AR Bruccoleri, J Song… - Optics for EUV, X …, 2021 - spiedigitallibrary.org
The soft x-ray band covers the characteristic lines of the highly ionized low-atomic-number
elements, providing diagnostics of the warm and hot plasmas in star atmospheres …

[HTML][HTML] Characterizing profile tilt of nanoscale deep-etched gratings via x-ray diffraction

J Song, RK Heilmann, AR Bruccoleri… - Journal of Vacuum …, 2019 - pubs.aip.org
The authors report the development of fast, nondestructive, and high accuracy metrology for
the characterization of profile tilt relative to the surface normal in nanoscale gratings using x …