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Publications (14)
A study of peculiarities associated with the propagation of short pulses of surface magnetostatic waves in a yttrium iron garnet (YIG) thin film bilayer is presented from both an experimental and theoretical perspective. A magnetic bilayer structure has been modelled using spatiotemporal coupled mode theory, including a dispersion term for the coup...
Light Detection and Ranging (LIDAR) is a remote sensing technique that measures properties of backscattered light in order to obtain information of a distant target. This work presents a method to improve the signal-to-noise ratio by 8 dB with respect to the direct detection of the backscattered signal of a LIDAR system. This method consists of the...
Methods for detecting spin waves rely on electrodynamical coupling between the spin wave dipolar field and an inductive probe. While this coupling is usually treated as constant, in this work, we experimentally and theoretically show that it is indeed temperature dependent. By measuring the spin wave magnetic field as a function of temperature of,...
Methods for detecting spin waves rely on electrodynamical coupling between the spin wave dipolar field and an inductive probe. While this coupling is usually treated as constant, in this work, we experimentally and theoretically show that it is indeed temperature dependent. By measuring the spin wave magnetic field as a function of temperature of,...
We developed a mid infrared (MIR) solar telescope, centered at 10 µm. Various optical layouts were analyzed based on computer simulations and a RitcheyChretien 6-inches telescope was selected with a plate scale of 2.5′′/mm using a pyroelectric 4 × 16 pixels detector. The angular resolution is 36′′/pixel with a field of view of 9.6′×2.4′. Two german...
We present a simple low-coherence time-domain interferometric reflectometer with a rapidly scanning optical delay line (RSODL) based on a non-parallel diffraction grating (DG) pair. The novelty of the solution is that the lightwave in the reference channel is focused on a galvo-mirror in a sub-mm static spot, which allows implementation of fast mic...
Spin-wave (SW) logic cell with a parallel 2-port excitation configuration that operates in XOR and OR logic regimes is described. The peculiarity of the solution is that magnetic field of lateral excitation electrodes couples to magnetic field component of SW resulting from its 2D confinement. The operation principle of the device can be interprete...
A study of the magnetoelastic (ME) and thermal effects governing the phase (φ) and amplitude of magnetostatic surface spin wave (MSSW) pulses propagating in Ga:YIG/GGG and permalloy magnonic waveguides is presented. The ME effects were studied in a flexural configuration, under punctual mechanical force (F). Thermally induced ME and demagnetization...
We present a simple modification to a swept source
optical system that overcomes the limitations in the depth range
associated with the short coherence length of fast swept lasers. It
is based on a wavelength dependent delay induced by a
diffraction grating pair with negative dispersion incorporated in
a reference arm of a Mach-Zehnder OCT interfer...
In this work we report on a fabrication method for producing large-area
multilayer polymer membranes and describe its application to the
instrumentation of a deformable mirror. This implementation allows for
highly flexible mirrors in which mechanical properties vary in a
controlled manner in order to better match optical requirements. In
addition,...
