Top Left=Vertical dotted line with tighter spacings
Top Right=Horazontal dotted line with tighter spacings
Bottom Left=Vertical dotted line with longer spacings
Bottom Right=Horazontal dotted line with longer spacing
The pictures located to the left side shows the pattern used to get the vertical dotted lines and for the right pictures, those show the pattern needed to get a horizontal dotted line. The same is true for the thicker lines, but because they are thicker, the light going through that section will become spaced out farther. This happens because less light is able to make it through those patterns. How I came to the conclusion of the patterns being either vertical or horizontal is from a simulation on light where a light source is on one side of the simulation, a barrier is in the middle and a "mirror" is on the other side of the simulation. When the light went through the barrier, it created line gradients on the mirror. This started to make me think about how the barrier limited the light to cause this to happen. After a little bit of thinking, I thought that if horizontal lines limited the direction of the light output, it would make sense the output of the light needed to be a vertical implied line. The same would go for a vertical line pattern.
2. The only way that I thought I could find a proportionality between the pattern on the slide and the simulation would be to find the angle using my results from the experiment. That angle turned out to be a range between aprox. .35° to .67° depending on the slide and laser used. Then I would try to find the angle from the simulation and match that angle with the experimented angle. When both of the angles matched, I would measure the distance between the opening of the slits and I would also measure the middle barrier. Then I would use those measurements for our experiment to find out the width of the slits and width of the lines.
Slit/Barrier length in simulation:
Green laser
Top Right = 410 nm / 1950 nm
Top Left = 440 nm / 2100 nm
Bottom Right = 430 nm / 1170 nm
Bottom Left = 430 nm / 1170 nm
Top Right = 410 nm / 1950 nm
Top Left = 440 nm / 2100 nm
Bottom Right = 430 nm / 1170 nm
Bottom Left = 430 nm / 1170 nm
Red LaserTop Right = 930 nm / 960 nm
Top Left = 707 nm / 1150 nm
Bottom Right = 290 nm / 1440 nm
Bottom Left = 300 nm / 1200 nm
Top Left = 707 nm / 1150 nm
Bottom Right = 290 nm / 1440 nm
Bottom Left = 300 nm / 1200 nm
Using this data, I am able to calculate the ratio between slit separations versus Dot separation. For the top row, I calculated a ratio of .0435:1. Plugging the ration in for the dot separation, I would get a value of .957mm separation of the slide concerning the top row. As for the bottom slides, I calculated a ratio between the two as .066:1. The corresponding value for the separation on the side equals .149mm.
With these numbers I can conclude the slit distance on the top detraction slide is .957mm apart, and for the bottom row is .149mm. The width of the line can be completed using the same way yielding the results .200mm and .83mm for the top and bottom line width, respectively.
With these numbers I can conclude the slit distance on the top detraction slide is .957mm apart, and for the bottom row is .149mm. The width of the line can be completed using the same way yielding the results .200mm and .83mm for the top and bottom line width, respectively.
3. The light wave simulation simulating the patterns on the 35 mm slides. To save space, I have shown four simulations.
 |
| Green Bottom |
 |
| Green Top |
 |
| Red Bottom |
 |
| Red Top |
4. From the simulations, green light is able to measure smaller things because it has a smaller wavelength.
 |
| Red laser |
 |
| Green laser |
No comments:
Post a Comment