PHY 2020 Lecture Notes - Lecture 46: Holography, The Crests, Wind Wave
Document Summary
To expand our understanding of interference to two sources of light. To study diffraction from single and multiple slits. To explore how x-ray diffraction may be used to examine atomic crystals. To see how the size of a circular aperture changes resolving power. To see how objects may be imaged by holography. Why do soap bubbles show vibrant color patterns, even though soapy water is colorless. We will now look at optical effects, such as interference, that depend on the wave nature of light. The term interference refers to any situation in which two or more waves overlap in space. Monochromatic wave refers to wave of single frequency or wavelength. Interference effects are most easily seen when we combine monochromatic waves. Shown in the figure is a snapshot of a single source s1 of sinusoidal waves and some of the wave fronts produced by this source. It is a monochromatic wave with frequency f and wavelength.
