Mark Horowitz and I built it onto an optical bench in the lab. We spent and eight-hour span putting this optical light path together.
Are not rays of light very small bodies emitted from shining substances?
I am interested in the physicality of light itself.
The bubbles are thinner than wavelengths of light.
I look at light as a material. It is physical. It is photons. Yes, it exhibits wave behavior, but it is a thing.
For X-rays, the phenomenon of diffraction by crystals was a natural consequence of the idea that X-rays are waves analogous to light and differ from it only by having a smaller wavelength.
I imagined there would be a way to crack the diffraction barrier. But of course I didn't know exactly how it would work, but I had a gut feeling that there must be something, and so I tried to think about it, to be creative.
With crystals we are in a situation similar to an attempt to investigate an optical grating merely from the spectra it produces... But a knowledge of the positions and intensities of the spectra does not suffice for the determination of the structure. The phases with which the diffracted waves vibrate relative to one another enter in an essential way. To determine a crystal structure on the atomic scale, one must know the phase differences between the different interference spots on the photographic plate, and this task may certainly prove to be rather difficult.
During exposure, interference takes place between the incident rays and those reflected by the mirror, with the formation of interference fringes half a wavelength distant from each other.
If diffraction or interference phenomena were to be sought it was therefore necessary, in accordance with the basic principles of wave theory, to select for the test arrangement far smaller decisive dimensions than those employed in corresponding tests with visible light.
This result is due to a phenomenon of interference which occurs within the sensitive layer.
Intensity like signal strength will generally fall off with distance from the source, although it also depends on the local conditions and the pathway from the source to the point.
Light in Nature creates the movement of colors.
A radio telescope pointing at the sky receives radiation not only from space, but also from other sources including the ground, the earth's atmosphere, and the components of the radio telescope itself.
There is no greater mystery to me than that of light traveling through darkness.
You have to understand the nature of light.
To some degree, to control light, I have to have a way to form it, so I use form almost like the stretcher bar of a canvas.
The model I came up with in 1964 is just the invention of a rather strange sort of medium that looks the same in all directions and produces a kind of refraction that is a little bit more complicated than that of light in glass or water.
