Done by Group : Scientists School Name : Omar Bin Al-Khattab Independent Secondary School for Boys. Manipulation Of Light In the Nano world Module : In this Module students discover the different light phenomena like Diffraction, Interference, Iridescence of Light But in The Nano scale. the product Idea is : The idea is about how to use one light to light up two rooms using the reflection of the original light by mirrors placed in tubes that are connected to both rooms.

1. Al-Bairaq
I am Discovering Materials
(Manipulation of light)
Group Scientists
Jassim Al-Motawa Mubark Al-Mansoori
Partner: Partner: Platinum Sponsor: Gold Sponsor: Silver Sponsor:

2. Outline
• Introduction of light
• Activity 1: Light & it’s spectrum
• Activity 2: Observing Diffraction
- Part A: Diffraction in Water Waves.
- Part B: Diffraction Simulation.
• Activity 3: Observing interference
- Part A: Reflection.
- Part B: Wave Generator.
• Activity 4:Observing iridescence
- Part A: Thin Film.
- Part B: Nano Particles.
- Part C: Two colors at once.
• Design Project: Fabricating Phonetic crystals.
• Product idea: Using one light to light up two rooms.

3. Introduction
Light usually refers to visible light, which is
electromagnetic radiation that is visible to
the human eye and is responsible for the
sense of sight.

4. Activity 1: Light & It’s Spectrum

5. Activity 2: Observing Diffraction
• Electron diffraction refers to the wave nature
of electrons. However, from a technical or
practical point of view, it may be regarded as a
technique used to study matter by firing
electrons at a sample and observing the
resulting interference pattern.

6. Part A:Diffraction in Water Waves
The wave doesn't just stop when it
reaches the end of the medium.
Rather, a wave will undergo certain
behaviors when it encounters the end
of the medium.

7. Part B:Diffraction Simulation
We used the wave simulator website
that Miss Marwa gave us to demonstrate
our wave length color which was Purple
& it’s wave length was 400

8. Activity 3: Observing Interference
In physics, interference is a phenomenon in
which two waves superpose to form a
resultant wave of greater or lower amplitude.

9. Part A: Reflection
• Reflection is the change of direction of a wave
front at an interface between two different
media so that the wave front returns into the
medium from which it originated.
• Examples of Reflection:
• 1- Light.
• 2- Sound.
• 3- Water Waves.

10. Part B: Wave Generator
• Wave power is the transport of energy by
ocean surface waves, and the capture of that
energy to do useful work – for example,
electricity generation, water desalination, or
the pumping of water (into reservoirs).

11. Activity 4: Observing Iridescence
• Iridescence is the property of certain surfaces
that appear to change color as the angle of
view or the angle of illumination changes.

12. Part A: Thin Film
• Thin film is a layer of material ranging from
fractions of a nanometer (monolayer) to
several micrometers in thickness.

13. Part B: Nano Particles
• Particle size can be determined by measuring the random
changes in the intensity of light scattered from a suspension
or solution. This technique is commonly known as dynamic
light scattering (DLS).

14. Part C: Two Colors at Once
• The geometry determines that at certain
angles, the light reflected from both surfaces
adds (interferes constructively), while at other
angles, the light subtracts. Different color's
therefore appear at different angles.

15. Product Idea
• The idea we came up with is how to use one
light to light up two rooms using the reflection
of the original light by mirrors placed in tubes
that are connected to both rooms.

16. Hypothesis
• Because light reflects of some surfaces we
wanted to try that in using it to light up an
entire house with only one light to save
electricity.

17. Materials & Method
• We used the following materials:
• - Wooden Planks.
• - Spray Paint.
• - Nails.
• - Liquid Paint.
• - Plastic Toy Grass.
• - Lightbulb.
• - Electric Switch.
• Our method was to cut the wooden planks and make a miniature building that has 3 rooms
• with tubes between them that have the little mirrors.

18. Results
• The results that we got were that we needed
to concentrate the light more specifically to
get the exact kind of reflection that we
wanted to get.

19. Recommendations
• If you are interested in our product idea we
would highly recommend using optical fibre
instead of mirrors in the tube, because it will
be more efficient & will give you a better
result than what we got.

20. Design Project: Fabricating Phonetic crystals.

21. Conclusion
• Since we signed up for this program we’ve
learned about light and how it works, we also
learned how to make an object with two
colors like the gem opal and we learned how
light affects the colors we see.

22. Acknowledgment
Many thanks to my teachers, school and AL-Bairaq team from
Center for Advanced Materials (CAM), Qatar University for
supporting us during our journey with a AL-Bairaq.
Also, I would like to thank the sponsors UNESCO, Qatar National
Commission, Ras Gas, Maersk and Shell.