PhD student Ori Henderson-Sapir featured in article “Powerful fibre laser is cheap and compact” by Physicsworld.com
A new type of fibre laser that operates in the mid-infrared range has been designed by researchers in Australia. The device uses a dual-wavelength pumping approach that makes it 25 times more powerful than existing fibre lasers operating at mid-infrared wavelengths. The new design also makes the laser cheaper to produce than others and the device could have a variety of applications – from atmospheric analysis to non-invasive medical diagnosis.
Many common hydrocarbon molecules absorb light in the mid-infrared range, and therefore a cheap and convenient source of laser light in this part of the spectrum could have a variety of practical applications. The greenhouse gases methane and ethane, for example, could be remotely detected with mid-infrared laser radar systems. Such lasers could also be used in medical diagnoses to detect trace gas concentrations in exhaled breath that are symptomatic of some diseases and metabolic processes. The presence of acetone on the breath, for example, is associated with diabetes. Similarly, formaldehyde can be indicative of breast cancer and varied concentrations of carbonyl sulfide can offer clues to the health of the liver… read full article