| rdfs:comment
| - O momento angular da luz é uma grandeza vetorial que expressa a quantidade de rotação dinâmica presente no campo eletromagnético da luz. Enquanto viaja aproximadamente em linha reta, um feixe de luz também pode ser rotativo (ou “girativo”, ou “torcido”) em torno do seu próprio eixo. Essa rotação, embora não seja visível a olho nu, pode ser revelada pela interação do feixe de luz com a matéria. (pt)
- The angular momentum of light is a vector quantity that expresses the amount of dynamical rotation present in the electromagnetic field of the light. While traveling approximately in a straight line, a beam of light can also be rotating (or "spinning", or "twisting") around its own axis. This rotation, while not visible to the naked eye, can be revealed by the interaction of the light beam with matter. The total angular momentum of light (or, more generally, of the electromagnetic field and the other force fields) and matter is conserved in time. (en)
- El momento angular de la luz es un vector que representa y cuantifica la rotación del campo electromagnético que constituye la luz. Así, un haz de luz, mientras que de forma aproximada viaja en línea recta, puede también estar rotando sobre su propio eje de propagación. Esta rotación, que no es visible al ojo humano, se manifiesta a través de la interacción de los rayos de luz con la materia. El momento angular de la luz total —o de forma más general, de cualquier campo electromagnético y de otros campos de fuerzas— y de la materia se conserva con el transcurso del tiempo. Hay, de hecho, dos formas distintas de rotación de un haz de luz, una que involucra su propia polarización y otra que determina la forma de su frente de onda. Estas dos formas de rotación se relacionan con dos manifestac (es)
- Het impulsmoment van licht is een vectorgrootheid die de hoeveelheid dynamische rotatie uitdrukt die aanwezig is in het elektromagnetische veld van het licht . Terwijl hij ongeveer in een rechte lijn beweegt, kan een lichtstraal ook rond zijn eigen as roteren (of " draaien "). Deze rotatie, hoewel niet zichtbaar voor het blote oog, kan worden aangetoond als er interactie van de lichtstraal met materie is. Het totale impulsmoment van licht (of van het elektromagnetische veld ) en materie blijft in de tijd constant. (nl)
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| has abstract
| - The angular momentum of light is a vector quantity that expresses the amount of dynamical rotation present in the electromagnetic field of the light. While traveling approximately in a straight line, a beam of light can also be rotating (or "spinning", or "twisting") around its own axis. This rotation, while not visible to the naked eye, can be revealed by the interaction of the light beam with matter. There are two distinct forms of rotation of a light beam, one involving its polarization and the other its wavefront shape. These two forms of rotation are therefore associated with two distinct forms of angular momentum, respectively named light spin angular momentum (SAM) and light orbital angular momentum (OAM). The total angular momentum of light (or, more generally, of the electromagnetic field and the other force fields) and matter is conserved in time. (en)
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