«In proclaiming an International Year focusing on the topic of light science and its applications, the UN has recognized the importance of raising global awareness about how light-based technologies promote sustainable development and provide solutions to global challenges in energy, education, agriculture and health. Light plays a vital role in our daily lives and is an imperative cross-cutting discipline of science in the 21st century. It has revolutionized medicine, opened up international communication via the Internet, and continues to be central to linking cultural, economic and political aspects of the global society.»* from light2015.org. We can receive today ‘light’ that has been traveling for over 13 billion years, around 300,000 years after the Big Bang. Light was at the origin of the universe. Many Philosophers studied light and vision in science in order to understand the world where they lived. Nowadays, science and technology are combined in order to play with light in many applications. Laser sources can be considered as the most important discovery of the twenty century. We need also to control light when it propagates, to guide it, and we need to shape it to obtain magnified or reduced images from very far objects or micro-objects, invisible for naked eyes. Because light is an electromagnetic wave, we can modulate it by tuning different parameters like intensity, phase, frequency or polarization. By this way, we can recover full 3D object information by recording light field it emitted with a very high resolution. Light can also interact with matter. When ultra-short laser pulses are shaped, laser nano-machining can be performed with complex structured beams. Within optical fibers, light is guided and can bring information. But light is also shaped in time in order to process the information.
Fecha: Martes 23 de Junio
Hora: 5-6pm
Lugar: Campus PUCP – Pabellón A, aula A308-309
PUCP
Dirección de Gestión de la Investigación
Año: 2015
Nombre de evento: Shaping the light
Ciudad: Lima