SUMMARY
The minimum diameter of a collimated electromagnetic beam, such as those produced by lasers or masers, is fundamentally constrained by its wavelength. While theoretical models suggest the possibility of creating beams with diameters smaller than the wavelength, practical limitations arise. Specifically, a beam spot smaller than one-sixth of the wavelength (λ/6) results in significant ghosting effects due to secondary intensity maxima. This phenomenon is crucial for applications in computational photolithography.
PREREQUISITES
- Understanding of electromagnetic wave theory
- Familiarity with laser and maser technology
- Knowledge of beam collimation techniques
- Basic principles of computational photolithography
NEXT STEPS
- Research the principles of beam collimation in laser systems
- Explore the effects of beam diameter on intensity distribution
- Study computational photolithography techniques and applications
- Investigate methods to minimize ghosting in electromagnetic beams
USEFUL FOR
Researchers, optical engineers, and professionals involved in laser technology and photolithography who seek to optimize beam performance and understand the limitations of beam diameter in relation to wavelength.