It is time to welcome 2015. This New Year should be specially interesting for us since it is the International Year of Light and Light-based Technologies. The International Year of Light is a global initiative adopted by the United Nations to raise awareness of how optical technologies promote sustainable development and provide solutions to worldwide challenges in energy, education, agriculture, communications and health.

From this tiny spot I hope I can contribute with a grain of sand to these goals by showing how a property of light that we can not perceive, polarization, becomes our tool to investigate many properties of the world that surround us.

After a long time without updates, I have just renewed the design of the website. My New Year’s resolution should be to update this website much more often.