Lasers Development Laboratory
Waveguides and microfluidic devices in materials with optical gain.
Helped by a multi-user and thematic FAPESP project, CLA is developing lab-on-chip devices for medical applications such as FDG (a pharmaceutical radio) and ELISA tests. Measurement of parameters such as temperature, absorption, counting and index In this way, the Laboratory of Lasers is developing, in collaboration with FATEC / SP, simple guides and double guides in glasses doped with rare earths, written by laser of femtoseconds.For devices made with cheaper materials or disposable and that do not carry a waveguide, we are developing in collaboration with POLI / USP the technique of Random Lasers in Microfluidic Channels [Appl. Op. 55, 5393 (2016)].
High power lasers and beam quality
The Lasers Laboratory has produced an inexpensive and simple maintenance technology for lasers up to 100W class continuous and beam quality limited by diffraction. We are currently looking for industries interested in acquiring this technology.
Folded Raman Lasers emitting in blue
Our laboratory specializes in Raman lasers based on three-level rare earth transitions in collaboration with MacQuarie University, Sydney, Australia. In recent publications we have demonstrated the parametric conversion to the blue spectrum with generation of 10 emission lines between 450 nm and 500 nm and powers in the hundreds of milliwatts range [Opt.Lett. 39, 6799 (2014)].
Random lasers and light propagation in turbid environments: turning the corner with light and location Anderson
The Lasers lab is engaged in investigating how light behaves in weak and strong scattering media. We have an arrangement to measure the free medium transport path in powders and diffuse media in general and another arrangement to determine the transmission matrix. We constructed non-resonant random lasers with 5% efficiency and resonant random lasers with tunable spectrum. Through determination of the Teflon transmission matrix we were able to create the first lens that focuses at 90 degrees [Appl.Opt. 54, 7740, (2015)]. A collaboration with UFPE and ICMM-CSIC of Madrid, Spain.
DBMC Resonators
This patented dual-beam resonator technology for modal control (DBMC) is the house specialty. The laser is extremely compact and at the same time its beam is limited by diffraction. When used in conjunction with the active Nd: YFL medium, this resonator is by far the most efficient of all Nd: YLF lasers already reported with 60% optical efficiency [Opt.Express 23, 9379 (2015)].