Demonstration of efficient spin injection in a CW VECSEL at RT and dynamic control of its polarization state

Polarization (physics)

Polarization (also polarisation) is a property of transverse waves which specifies the geometrical orientation of the oscillations. In a transverse wave, the direction of the oscillation is perpendicular to the direction of motion of the wave. A simple example of a polarized transverse wave is vibrations traveling along a taut string (see image); for example, in a musical instrument like a guitar string. Depending on how the string is plucked, the vibrations can be in a vertical direction, horizontal direction, or at any angle perpendicular to the string.

Vertical-cavity surface-emitting laser

The vertical-cavity surface-emitting laser, or VCSEL ˈvɪksəl, is a type of semiconductor laser diode with laser beam emission perpendicular from the top surface, contrary to conventional edge-emitting semiconductor lasers (also in-plane lasers) which emit from surfaces formed by cleaving the individual chip out of a wafer. VCSELs are used in various laser products, including computer mice, fiber optic communications, laser printers, Face ID, and smartglasses.

Circular polarization

In electrodynamics, circular polarization of an electromagnetic wave is a polarization state in which, at each point, the electromagnetic field of the wave has a constant magnitude and is rotating at a constant rate in a plane perpendicular to the direction of the wave. In electrodynamics, the strength and direction of an electric field is defined by its electric field vector. In the case of a circularly polarized wave, the tip of the electric field vector, at a given point in space, relates to the phase of the light as it travels through time and space.

Demonstration of efficient spin injection in a CW VECSEL at RT and dynamic control of its polarization state

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Domain Imaging and Switching Dynamics in BaTiO3-Based Photonic Integrated Devices

Collective behavior and emerging patterns in dense dry aligning active matter

Smooth GaN membranes by polarization-assisted electrochemical etching

Domain Imaging and Switching Dynamics in BaTiO3-Based Photonic Integrated Devices

Collective behavior and emerging patterns in dense dry aligning active matter

Smooth GaN membranes by polarization-assisted electrochemical etching