Principal Sponsors
Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time.
National Science Foundation
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
Lasers
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Create a laser by pumping the chamber with a photon beam. Manage the energy states of the laser's atoms to control its output.
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Vezi mai jos.
Resurse
Principalele subiecte
- Laser
- Fascilul de fotoni
- Mecanică cuantică
Studii de caz
- Describe how absorption and spontaneous and stimulated emission work, and explain the requirements for each to occur.
- Describe how a laser works.
- Explain the requirements for lasing in terms of the intensity and wavelength of the lamp, the mirror reflectivity, and the lifetimes of the excited states of the atom.
- Troubleshoot a broken laser.
Sfaturi pentru profesori
Ghidul profesorului (pdf) conţine idei propuse de echipa PhET.
Idei pentru predare
| Title | Authors | Level | Type | Updated |
|---|---|---|---|---|
Visualization and Visual Illusions SIM Homework
|
Kathy Perkins, Carl Wieman | UG-Intro | HW | 09.01.2011 |
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How to make a laser
|
Sam McKagan, Kathy Perkins and Carl Wieman | UG-Intro UG-Adv |
HW | 20.04.2010 |
| Light Emission and Lasers | Debra Krause Dandaneau | HS UG-Intro |
Lab Other |
17.04.2009 |
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Blackbody Spectrum & Lasers Simulations Homework
|
Kathy Perkins, Carl Wieman | UG-Intro HS |
HW | 08.01.2011 |
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Bose-Einstein Condensation Lesson
|
Carl Wieman, Kathy Perkins | UG-Intro HS UG-Adv |
CQs Demo |
09.01.2011 |
Puteţi trimite ideile şi activităţile personale.
Versiuni traduse:
Cerinţe software
| Windows | Macintosh | Linux |
|---|---|---|
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Microsoft Windows
XP/Vista/7 Sun Java 1.5.0_15 or later |
OS 10.5 or later
Sun Java 1.5.0_19 or later |
Sun Java 1.5.0_15 or later |
Credite
| Echipa de proiectare | Alţi colaboratori | Mulţumiri |
|---|---|---|
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