A laser beam with Gaussian profile normally incident to the surface. More...

#include <LaserBeam.hpp>

Classes
struct	BeamWidth

Public Types
using	options = tmpl::list<BeamWidth>
using	argument_tags
using	volume_tags = tmpl::list<>
using	argument_tags_linearized = tmpl::list<>
using	volume_tags_linearized = tmpl::list<>

Public Member Functions
	LaserBeam (const LaserBeam &)=default
LaserBeam &	operator= (const LaserBeam &)=default
	LaserBeam (LaserBeam &&)=default
LaserBeam &	operator= (LaserBeam &&)=default
std::unique_ptr< domain::BoundaryConditions::BoundaryCondition >	get_clone () const override
	LaserBeam (double beam_width)
double	beam_width () const
std::vector< elliptic::BoundaryConditionType >	boundary_condition_types () const override
void	apply (gsl::not_null< tnsr::I< DataVector, 3 > * > displacement, gsl::not_null< tnsr::I< DataVector, 3 > * > n_dot_minus_stress, const tnsr::iJ< DataVector, 3 > &deriv_displacement, const tnsr::I< DataVector, 3 > &x, const tnsr::i< DataVector, 3 > &face_normal) const
void	pup (PUP::er &p) override
Public Member Functions inherited from elliptic::BoundaryConditions::BoundaryCondition< 3 >
	BoundaryCondition (const BoundaryCondition &)=default
	BoundaryCondition (BoundaryCondition &&)=default
BoundaryCondition &	operator= (const BoundaryCondition &)=default
BoundaryCondition &	operator= (BoundaryCondition &&)=default
Public Member Functions inherited from domain::BoundaryConditions::BoundaryCondition
	BoundaryCondition (BoundaryCondition &&)=default
BoundaryCondition &	operator= (BoundaryCondition &&)=default
	BoundaryCondition (const BoundaryCondition &)=default
BoundaryCondition &	operator= (const BoundaryCondition &)=default
	BoundaryCondition (CkMigrateMessage *const msg)
	WRAPPED_PUPable_abstract (BoundaryCondition)

Static Public Member Functions
static void	apply_linearized (gsl::not_null< tnsr::I< DataVector, 3 > * > displacement, gsl::not_null< tnsr::I< DataVector, 3 > * > n_dot_minus_stress, const tnsr::iJ< DataVector, 3 > &deriv_displacement)

Static Public Attributes
static constexpr Options::String	help
Static Public Attributes inherited from elliptic::BoundaryConditions::BoundaryCondition< 3 >
static constexpr size_t	volume_dim

Detailed Description

A laser beam with Gaussian profile normally incident to the surface.

This boundary condition represents a laser beam with Gaussian profile that exerts pressure normal to the surface of a reflecting material. The pressure we are considering here is

\begin{align}n_i T^{ij} = -n^j \frac{e^{-\frac{r^2}{r_0^2}}}{\pi r_0^2} \end{align}

where \(n_i\) is the unit normal pointing out of the surface, \(r\) is the coordinate distance from the origin in the plane perpendicular to \(n_i\) and \(r_0\) is the "beam width" parameter. The pressure profile and the angle of incidence can be generalized in future work. Note that we follow the convention of [139], [137], and [211] in defining the beam width, and other publications may include a factor of \(\sqrt{2}\) in its definition.

This boundary condition is used to simulate thermal noise induced in a mirror by the laser, as detailed for instance in [139], [137], and [211]. See also Elasticity::Solutions::HalfSpaceMirror for an analytic solution that involves this boundary condition.

Member Typedef Documentation

◆ argument_tags

using Elasticity::BoundaryConditions::LaserBeam::argument_tags

Initial value:

 
      tmpl::list<domain::Tags::Coordinates<3, Frame::Inertial>,
                 ::Tags::Normalized<
                     domain::Tags::UnnormalizedFaceNormal<3, Frame::Inertial>>>

Member Function Documentation

◆ boundary_condition_types()

std::vector< elliptic::BoundaryConditionType > Elasticity::BoundaryConditions::LaserBeam::boundary_condition_types ( ) const

inlineoverridevirtual

Implements elliptic::BoundaryConditions::BoundaryCondition< 3 >.

◆ get_clone()

std::unique_ptr< domain::BoundaryConditions::BoundaryCondition > Elasticity::BoundaryConditions::LaserBeam::get_clone ( ) const

inlineoverridevirtual

Implements domain::BoundaryConditions::BoundaryCondition.

Member Data Documentation

◆ help

Options::String Elasticity::BoundaryConditions::LaserBeam::help

staticconstexpr

Initial value:

=

"A laser beam with Gaussian profile normally incident to the surface."

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

src/Elliptic/Systems/Elasticity/BoundaryConditions/LaserBeam.hpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes