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zb23
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- TL;DR
- Debye model
Can a solid vibrate with only one frequency-Debye maximal frequency?
Graduate Can a Solid Vibrate at Debye Max Frequency?
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A solid can theoretically vibrate at the Debye maximal frequency if it behaves like a crystal where atoms vibrate independently around their equilibrium positions. This scenario aligns with the Einstein model, which simplifies the system to a single vibration frequency. The discussion emphasizes the distinction between independent atomic vibrations and collective modes in solids. Understanding these vibrational characteristics is crucial for studying thermal properties and phonon behavior in materials. The concept of a solid vibrating solely at the Debye frequency highlights important aspects of solid-state physics.
I am observing an irregular, aperiodic noise pattern in the reflection signal of a high-finesse optical cavity (finesse ≈ 20,000). The cavity is normally operated using a standard Pound–Drever–Hall (PDH) locking configuration, where an EOM provides phase modulation.
The signals shown in the attached figures were recorded with the modulation turned off. Under these conditions, when scanning the laser frequency across a cavity resonance, I expected to observe a simple reflection dip. Instead...
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