Applied Optics

Imaging, Mainipulating, Measuring

Our Motto: Leave no photon in peace

We work in three broad areas: Diffractive Optics, Optical MEMS and Imaging. Diffractive optics involves the design and fabrication of elements with feature sizes in the order of or smaller than the wavelength of light. We study how light can be manipulated in a myriad of ways using these elements. A large part of our work involves fabrication of these elements on fibre tip.
Optical MEMS are used to manipulate light in real time. Using some form of actuation, (e.g., electrostatic), small optical components can be moved. This movement can be exploited in different ways. For example, it could be used to simply change direction of the light or the movement could result in a phase change that in turn provides information about the light or sample being studied. A combination of the above techniques are using in our fibre-based Optical Coherence Tomography (OCT) system. In addition, to developing and building an OCT system that works at 1325nm, we study other imaging techniques such as Fourier Ptychography Microscopy, and study extraction of optical phase. For more information please click here