Frequency Comb Latest News
Frequency combs are an important modern tool which are used to calibrate atomic clocks and have various other applications.
About Frequency Comb
- It is a special kind of laser light whose spectrum, or set of frequencies, resembles the teeth of a comb.
- Frequency combs are simple and compact tools that phase coherently connect the radio frequency domain (say below 100GHz) with the optical domain (say above 200THz).
Characteristics of Frequency Comb
- Instead of containing just one colour (one frequency), it emits a large number of evenly spaced frequencies. The spacing is extremely regular.
- Frequency combs are widely-used, high-precision tools for measuring and detecting different frequencies colors — of light.Â
- It has high stability and precision.
Applications of Frequency comb
- It helps scientists compare an unknown light frequency to a stable reference with extraordinary precision.Â
- Frequency combs are an important modern tool to calibrate atomic clocks and measure shifts in light caused by gravity.
- It is used to detect exoplanets.
- It is also used in high-speed spectroscopy
Source: TH
Frequency Comb FAQs
Q1: What is a Frequency Comb?
Ans: It is a spectrum of discrete, equally spaced frequencies
Q2: What is the primary application of Frequency Combs in metrology?
Ans: Calibrating atomic clocks
