High Brightness Single Frequency Mid-Infrared Lasers
In this project you will develop a high brightness single frequency source for pumping highly non-linear crystalline resonators for generating wide-band mid-infrared frequency combs.
This will make use of a revolutionary dual-wavelength technique that recently allowed us to demonstrated the longest wavelength room temperature fibre laser.
Frequency combs have enabled a revolution in spectroscopy, leading new applications ranging from atmospheric sensing of greenhouse gases through to medical diagnostics. Most of these demonstrations have occurred in the near infrared but significant gains can be achieved by converting these diagnostics to mid-infrared since absorption lines can be up to 2 orders of magnitude stronger. However, there are very few reported frequency combs in the mid-infrared.