SUMMARY
The discussion centers on calculating the frequency width of a helium-neon laser emitting red light at a wavelength of 632.8 nm with a width of 0.01 nm. The relevant equation used is f = c/λ, where c represents the speed of light. The correct calculation yields a frequency width of 7.49 GHz, confirming that both the central wavelength and its width are essential for determining the frequency width. This problem illustrates the relationship between wavelength and frequency in laser emissions.
PREREQUISITES
- Understanding of the speed of light (c = 3 x 10^8 m/s)
- Knowledge of the relationship between wavelength and frequency
- Familiarity with basic physics equations, specifically f = c/λ
- Concept of nanometers (nm) and gigahertz (GHz) as units of measurement
NEXT STEPS
- Review the derivation of the equation f = c/λ in detail
- Explore the implications of wavelength width on frequency width in laser physics
- Learn about the characteristics of helium-neon lasers and their applications
- Investigate the effects of wavelength variations on optical systems
USEFUL FOR
Students in physics or engineering, particularly those studying optics and laser technology, will benefit from this discussion. It is also relevant for anyone interested in the practical applications of wavelength and frequency in laser systems.