Complete and incomplete mode locking. Charge density waves.

Thread starter LagrangeEuler
Start date Jul 31, 2014
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Charge Charge density Complete Density Mode Waves

In summary, complete mode locking is a phenomenon in which all longitudinal modes of a laser are locked in phase, resulting in a train of ultrashort optical pulses with a well-defined repetition rate. In contrast, incomplete mode locking occurs when only a subset of the modes are locked, resulting in a varying repetition rate. Charge density waves (CDWs) are a type of collective electronic motion in solids that can have significant effects on the electronic, optical, and magnetic properties of materials. Potential applications of CDWs include developing new electronic devices, controlling optical properties of materials, and providing insights into fundamental electron behavior.

Jul 31, 2014

LagrangeEuler

What is the difference between complete and incomplete mode locking in charge density wave systems?

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Aug 3, 2014

Greg Bernhardt

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I'm sorry you are not generating any responses at the moment. Is there any additional information you can share with us? Any new findings?

1. What is complete mode locking?

Complete mode locking is a phenomenon in which all of the longitudinal modes of a laser are locked in phase, resulting in a train of ultrashort optical pulses with a well-defined repetition rate. This is achieved through the use of a mode-locking device, such as a saturable absorber, to force the laser to emit pulses at a specific frequency.

2. What is incomplete mode locking?

Incomplete mode locking occurs when only a subset of the longitudinal modes of a laser are locked in phase. This results in a train of optical pulses with a varying repetition rate. Incomplete mode locking can be caused by various factors, such as imperfect mode-locking device or fluctuations in the laser cavity length.

3. What are charge density waves?

Charge density waves (CDWs) are a type of collective electronic motion in solids, in which the electrons form a periodic pattern in the material. This can occur due to the interaction between the electrons and the crystal lattice, leading to a distortion in the electron density. CDWs have been observed in various materials and can have a significant impact on their electronic and optical properties.

4. How do charge density waves affect materials?

CDWs can have various effects on materials, depending on the specific material and the nature of the CDW. In some cases, CDWs can cause a decrease in electrical conductivity, while in others they can lead to an increase. CDWs can also affect the optical properties of materials, leading to changes in reflectivity or absorption. Additionally, CDWs can influence the magnetic properties of materials and can even induce superconductivity in some cases.

5. What are the potential applications of charge density waves?

CDWs have been studied extensively for their potential applications in various fields, including electronics, optics, and materials science. Some potential applications include developing new electronic devices with enhanced properties, such as high-speed switches or sensors, as well as using CDWs to control the optical properties of materials for applications in photonics. Additionally, the study of CDWs can provide insights into the fundamental behavior of electrons in condensed matter systems.