Text full multimedia monochrome

First time here?

Find out more about how The Lecture List works.

Do you organise talks?

Register to tell us about them. The Lecture List is a great place to be listed, but it's also an easy place to upload your information to. It's very simple and costs nothing. Find out more


Find out what you can do to keep The Lecture List online

Optical Microscopy: The resolution revolution

Book your seat to hear Nobel Prize winner Professor Dr Stefan Hell deliver the 2016 IET Kelvin Lecture.

Throughout the 20th century, it was widely accepted that a light microscope relying on conventional optical lenses cannot discern details that are much finer than about half the wavelength of light (200-400 nm), due to diffraction.

However, in the 1990s, the viability to overcome the diffraction barrier was realised and microscopy concepts defined, that can resolve fluorescent features down to molecular dimensions.

This lecture will discuss the simple yet powerful principles that allow neutralising the limiting role of diffraction. In a nutshell, feature molecules residing closer than the diffraction barrier are transferred to different (quantum) states, usually a bright fluorescent state and a dark state, so that they become discernible for a brief period of detection.

Thus, the resolution-limiting role of diffraction is overcome, and the interior of transparent samples, such as living cells and tissues, can be imaged at the nanoscale.


Professor Stefan Hell | talks


Date and Time:

7 April 2016 at 6:00 pm


1 hour 30 minutes



IET London: Savoy Place
2 Savoy Place

Show map

Organised by:

See other talks organised by The IET...



Free to attend

Available from:


Register to tell a friend about this lecture.


If you would like to comment about this lecture, please register here.


Any ad revenue is entirely reinvested into the Lecture List's operating fund