Novel laser technology for microchip-size chemical sensors
Tuesday, December 11, 2018 - 07:30
in Physics & Chemistry
Most lasers emit photons of exactly the same wavelength, producing a single color. However, there are also lasers that consist of many frequencies, with equal intervals in between, as in the teeth of a comb; thus, they are referred to as "frequency combs." Frequency combs are perfect for detecting a variety of chemical substances.