OpenMD::Perturbations::Light Class Reference

Applies an EM field representing light to the system. More...

#include <Light.hpp>

Inheritance diagram for OpenMD::Perturbations::Light:

Public Member Functions
	Light (SimInfo *info)

Additional Inherited Members
Protected Member Functions inherited from OpenMD::ForceModifier
	ForceModifier (SimInfo *info)
Protected Attributes inherited from OpenMD::ForceModifier
SimInfo *	info_ {nullptr}

Detailed Description

Applies an EM field representing light to the system.

The field is applied as an external perturbation. The user specifies

light{
  useLight = true;
  intensity = c;
  wavelength = l;
  propagationDirection = (0, 0, 1);
  polarization = "+";
}

in the .omd file where the propagationDirection vector, \( \mathbf{k} \) is a unit vector, the value of \( c \) is in units of \( W cm^{-2} \), and wavelength, \( l \) is in nm.

Alternatively, the user can specify

light{
  useLight = true;
  intensity = c;
  frequency = w;
  propagationDirection = (0, 0, 1);
  polarization = "+";
}

with frequency, \( w \) measured in Hz, or alternatively:

light{
  useLight = true;
  intensity = c;
  waveVector = (kx, ky, kz);
  polarization = "+";
}

with the components of the wavevector specified in \( \AA^{-1} \). In all cases, options for polarization include "x", "y", "+", or "-".

Definition at line 104 of file Light.hpp.

Constructor & Destructor Documentation

Light()

OpenMD::Perturbations::Light::Light

(

SimInfo *

info

)

Definition at line 60 of file Light.cpp.

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The documentation for this class was generated from the following files:

• perturbations/Light.hpp
• perturbations/Light.cpp