Channelling light through a sub-wavelength waveguide is allowing researchers to manipulate the smallest particles to date. A slot waveguide that focuses light to nanometre scales is overcoming prior ...

Just as light have different polarization when propagating in free space, there are similar properties in integrated optical waveguides, we call it ‘TE’ polarization and ‘TM’ polarization. The ...

Tufts University engineers have invented a chip-sized, high-speed modulator that operates at terahertz (THz) frequencies and at room temperature at low voltages without consuming DC power. The ...

We’re all used to the changes in the properties of radio frequency systems as the frequency increases and the wavelength becomes shorter. The difference between the way an FM radio and a WiFi adapter ...