How Does Diffraction Grating Reveal CD and DVD Storage Capacities?

Click For Summary
SUMMARY

The discussion focuses on investigating the diffraction grating of CDs and DVDs to determine the spacing of tracks and their information storage capacities. The diffraction grating equation is essential for this experiment, and a well-collimated beam of coherent light, such as from a laser or a pinhole setup, is required for accurate measurements. Participants also explore the potential for mathematical relationships and improvements in optical disk technology based on the findings.

PREREQUISITES
  • Understanding of diffraction grating principles
  • Familiarity with coherent light sources, including lasers
  • Basic knowledge of optical physics
  • Ability to apply mathematical equations related to diffraction
NEXT STEPS
  • Research the diffraction grating equation and its applications
  • Explore methods for measuring track density on optical disks
  • Investigate advancements in optical disk technology
  • Learn about the properties of coherent light sources and their uses in experiments
USEFUL FOR

Students and researchers in optical physics, experimental physicists, and anyone interested in the storage capacities and technological advancements of optical disks.

NeoXx
Messages
22
Reaction score
0
Hello,


I have to do an experiment in which I will investigate the diffraction grating of a CD
and a DVD. I want to find out the spacing of tracks on both of them and thus find how much information can be stored. Also I want to compare them (density of tracks etc.) and maybe even suggest further improvements to optical disks.

Is there anything else I could find out in this experiment? Perhaps some mathematical relationship?


Regards,

NeoXx
 
Science news on Phys.org
Or a pin-hole in a dark room; coherent light sources existed prior to the invention of the laser!

Any distant, steady source when introduced via a pinhole should work. For example, the sun, or a gas discharge tube.
 

Similar threads

Undergrad An Imagined Diffraction Grating
  • · Replies 7 ·
Replies
7
Views
791
Undergrad How does a CD act like a diffraction grating?
  • · Replies 10 ·
Replies
10
Views
4K
Graduate Fraunhofer diffraction experiment- neural density filters
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad [Lab]difference between diffraction grating and linear polarizer ?
  • · Replies 5 ·
Replies
5
Views
9K
Diffraction Grating: Possible variables for Experiment
  • · Replies 5 ·
Replies
5
Views
2K
DVD/CD track spacing and storage capacity
  • · Replies 4 ·
Replies
4
Views
5K
Why is there a spectrum on the back of a CD or DVD?
  • · Replies 2 ·
Replies
2
Views
2K
Storage of material from CD's and DVD's: cloud?
  • · Replies 36 ·
2
Replies
36
Views
5K
How Does a Grating Spectroscope Work?
  • · Replies 1 ·
Replies
1
Views
6K
How Do You Calculate Light Frequency in Diffraction Grating Experiments?
  • · Replies 4 ·
Replies
4
Views
4K