Holography

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/holography

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How big is Holography?Security features on currency and identification documents to prevent counterfeiting
2. What is the theoretical origin?Proposed by Dennis Gabor in 1947 to improve electron microscope resolution
3. What is the enabling technology?The invention of the laser was critical for practical holographic development

Wavefront Reconstruction: Recreating the original pattern of light waves from an object to form a 3D image.
Monochromatic Light: Light of a single wavelength or color, characteristic of laser light.
Coherent Light: Light waves that are in phase, meaning their crests and troughs align.
Diffraction Grating: A pattern that bends light waves, used in holograms to reconstruct images.