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A Multimodal Wide-Field Fourier-Transform Raman Microscope
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Internal wave interferometry.

Manikandan Mathur1, Thomas Peacock

  • 1Department of Mechanical Engineering, MIT, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA. manims@mit.edu

Physical Review Letters
|April 7, 2010
PubMed
Summary
This summary is machine-generated.

Internal waves in nonuniform density stratifications behave like light in a Fabry-Perot interferometer. This study demonstrates the first experimental internal wave interferometer, revealing resonant transmission principles.

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Area of Science:

  • Fluid dynamics
  • Wave physics
  • Optical physics analogy

Background:

  • Internal waves are crucial for momentum and energy transport in various natural systems, including oceans, atmospheres, and astrophysical bodies.
  • Nonuniform density stratifications are common in these environments, influencing wave behavior.

Purpose of the Study:

  • To establish a mathematical analogy between internal wave propagation in nonuniform density stratifications and optical interferometry.
  • To experimentally demonstrate an internal wave interferometer based on resonant transmission theory.

Main Methods:

  • Rigorous mathematical derivation of the analogy between internal wave propagation and a Fabry-Perot interferometer.
  • Experimental setup designed to demonstrate resonant transmission of internal waves, creating an 'internal wave interferometer'.

Main Results:

  • A direct mathematical correspondence was established between internal wave propagation and the Fabry-Perot interferometer.
  • The first experimental demonstration of an internal wave interferometer was successfully achieved.
  • Observations align with the theory of resonant transmission of internal waves.

Conclusions:

  • The study reveals a fundamental connection between wave phenomena in fluid dynamics and optics.
  • The developed internal wave interferometer provides a new tool for studying wave dynamics and resonant transmission.
  • This work offers insights into energy and momentum transport mechanisms in stratified natural systems.