'Band gap' presentation slideshows

Optical Fibre Communication

Optical Fibre Communication. Lecture delivered by Christie Alwis 2009 faculty of Applied Science for computer science , and physics special students. University of Sabaragamuwa , Belihuloya. For more details on this lecture, please visit www.christiealwis.com. Revolutions.

1.17k views • 60 slides

What is a quantum dot?

What is a quantum dot?. Nanocrystals 2-10 nm diameter semiconductors. What is a quantum dot?. Exciton Bohr Radius Discrete electron energy levels Quantum confinement. Motivation. Semiconducting nanocrystals are significant due to;

1.89k views • 53 slides

Physics and technology of silicon detectors (with a Linear Collider bias)

717 views • 50 slides

Photonic Band Gap Crystals

Photonic Band Gap Crystals. Srivatsan Balasubramanian. Summary. Physics of photonic bandgap crystals. Photonic Crystals Classification. Fabrication. Applications. Protoype photonic band gap devices. Current Research. Future Directions. Conclusion. What is a PBG ?.

814 views • 45 slides

Blue Semiconductor Lasers

Guest Lecture for ScIT. Blue Semiconductor Lasers. Leo J. Schowalter Physics, Applied Physics & Astronomy Department Rensselaer Polytechnic Institute. Topics. Why the Interest? What is a semiconductor? Metals, insulators and semiconductors How big a band gap energy?

823 views • 43 slides

Magnetic and charge order phase transition in YBaFe 2 O 5 (Verwey transition)

Magnetic and charge order phase transition in YBaFe 2 O 5 (Verwey transition). Peter Blaha , Ch. Spiel , K.Schwarz Institute of Materials Chemistry TU Wien Thanks to P.Karen (Univ. Oslo, Norway). E.Verwey, Nature 144, 327 (1939). Fe 3 O 4 , magnetite.

1.43k views • 42 slides

Quantum Dots

Quantum Dots. By Timothy Paik Marcus Dahlstrom Michael Nip. Implementing Quantum Computers. Many implementations for quantum computing Why solid state? Scalability Decoherence is less of a problem. What is a quantum dot?. In two words, a semiconductor nanocrystal.

840 views • 39 slides

GaAs

658 views • 38 slides

Lecture 19

Lecture 19. Part 4: Solid State-Band Theory and Conductivity. Molecular Orbitals of Polylithium. Tro: Chemistry: A Molecular Approach, 2/e. Band Theory. When two atomic orbitals combine they produce both a bonding and an antibonding molecular orbital

766 views • 37 slides

Solar Photovoltaics

745 views • 34 slides

Chemical Analysis with the SEM

566 views • 33 slides

Basic Science and Modeling of Solar Energy

444 views • 33 slides

The Solar Panel

The Solar Panel. Mark Randall. History Everyone Else did it!!. 1839: Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the photovoltaic effect while experimenting with an electrolytic cell made up of two metal electrodes. .

882 views • 32 slides

Photonic Crystals: Periodic Surprises in Electromagnetism

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Ab Initio Thermodynamics

706 views • 28 slides

Photonic Sources

Photonic Sources. Contents. Review of Semiconductor Physics Light Emitting Diode (LED) - Structure, Material,Quantum efficiency, LED Power, Modulation Laser Diodes - structure, Modes, Rate Equation,Quantum efficiency, Resonant frequencies, Radiation pattern Single-Mode Lasers

926 views • 25 slides

Quantum Dots and Ultra-Efficient Solar Cells

586 views • 25 slides

From an Atom to a Solid

3d. 4s. Energy below the Vacuum level (eV). From an Atom to a Solid.

320 views • 17 slides

CHAPTER 21: OPTICAL PROPERTIES

1.33k views • 13 slides

Hypersonic Phononic Crystals Edwin L. Thomas, Massachusetts Institute of Technology, DMR 0308133

182 views • 2 slides