Tootfinder

Plasmonic interferences sampled by a diffraction grating generate moir{\'e} fringes
Marin Tharrault (INSP-E6, INSP), Guillaume Boulliard (INSP-E6, INSP), Emmanuel Lhuillier (INSP-E6, INSP), Aloyse Degiron
https://arxiv.org/abs/2508.17935

Plasmonic interferences sampled by a diffraction grating generate moir{é} fringes
We report on the formation of moir{é} patterns when observing the diffraction of surface plasmons by periodic gratings of finite extent with an imaging spectrometer that maps the light emission as a function of the wavelength and the propagation distance. This phenomenon results from the formation of standing waves upon the partial reflection of surface plasmons at the far end of the grating and their scattering by the periodic corrugations. The moir{é} fringes are created as a result of the …

The Dispersion Leverage Coronagraph (DLC): A nulling coronagraph for use on primary objective grating telescopes
Leaf Swordy, Heidi Jo Newberg, Becket Hill, Richard K. Barry, Marina Cousins, Kerrigan Nish, Frank Ravizza, Sarah Rickborn
https://arxiv.org/abs/2507.11745

The Dispersion Leverage Coronagraph (DLC): A nulling coronagraph for use on primary objective grating telescopes
We present the Dispersion Leverage Coronagraph (DLC), a novel variation of the Achromatic Interfero Coronagraph (AIC) that is designed for optical systems featuring large, dispersive primary objective gratings. DLC was originally designed for the Diffractive Interfero Coronagraph Exoplanet Resolver (DICER), a notional 20m class infrared space telescope utilizing the enhanced one-dimensional angular resolution of large diffraction gratings in order to discover and characterize near-Earth exoplan…

Conical diffraction of the synchrotron beam to probe the efficiency and morphology of blazed gratings
K. V. Nikolaev, L. I. Goray, P. S. Savchenkov, A. V. Rogachev, A. A. Chouprik, T. N. Berezovskaya, D. V. Mokhov, S. A. Garakhin, N. I. Chkhalo, A. D. Buravleuv, S. N. Yakunin
https://arxiv.org/abs/2507.23513

Conical diffraction of the synchrotron beam to probe the efficiency and morphology of blazed gratings
This study explores the use of synchrotron measurements as a nanometrology tool for blazed gratings. In grazing incidence geometry, one can measure both the conical diffraction and the diffuse scattering on the grating simultaneously in a single scattering pattern. The sensitivity of scattering patterns to the structure of the blazed gratings is evaluated. The diffraction component of the pattern is shown to be sensitive to the average groove profile of the gratings. Meanwhile, the diffuse scat…

Holographic hyperbranched polymer nanocomposite grating with exceptionally large neutron scattering length density modulation amplitudes
Elhoucine Hadden, J\"urgen Klepp, Martin Fally, Tobias Jenke, Joachim Kohlbrecher, Tomoko Shimada, Asako Narita, Juro Oshima, Yasuo Tomita
https://arxiv.org/abs/2507.00922

Holographic hyperbranched polymer nanocomposite grating with exceptionally large neutron scattering length density modulation amplitudes
Nanoparticle-polymer composite gratings incorporating ultrahigh-refractive-index hyperbranched polymers as organic nanoparticles have demonstrated exceptional light optical properties, yet their potential for neutron diffraction applications remains unexplored. We report on the neutron optical properties of a holographically structured hyperbranched-polymer-dispersed nanocomposite grating at a quasi-monochromatic neutron wavelength of 2 nm. We show that neutron diffraction measurements performe…