activity
20242026
collaborators

5 papers

physics.optics2026

Commissioning measurements for a very cold neutron interferometer based on nanodiamond-polymer composite gratings

Roxana H. Ackermann, Sonja Falmbigl, Elhoucine Hadden +7

Over the past decade, holographic nanodiamond-polymer composite gratings have been developed and optimized as high-efficiency diffractive elements for very cold neutrons (VCN), for…

physics.optics2025

Holographic hyperbranched polymer nanocomposite grating with exceptionally large neutron scattering length density modulation amplitudes

Elhoucine Hadden, Jürgen Klepp, Martin Fally +6

Nanoparticle-polymer composite gratings incorporating ultrahigh-refractive-index hyperbranched polymers as organic nanoparticles have demonstrated exceptional light optical propert…

physics.optics2025

Photosensitive materials for neutron optics

Martin Fally, Juergen Klepp, Christian Pruner +6

Photosensitive materials with ever-improving properties are of great importance for optical and photonics applications. Additionally, they are extremely useful for designing compon…

physics.optics2025

Application of nanodiamond-polymer composite holographic gratings in a very cold neutron interferometer

Sonja Falmbigl, Roxana H. Ackermann, Elhoucine Hadden +6

In recent decades, photosensitive materials have been used for the development of optical devices not only for light, but also for cold and very cold neutrons. We show that hologra…

physics.optics2024

Diffraction theories for off-Bragg replay: J.T. Sheridan's seminal work and consequences

Martin Fally

Based on the seminal work by John T. Sheridan [1] we discuss the usefulness and validity of simple diffraction theories frequently used to determine and characterize optical hologr…