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

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::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

virtual std::vector< elliptic::BoundaryConditionType >	boundary_condition_types () const=0

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)

virtual auto	get_clone () const -> std::unique_ptr< BoundaryCondition >=0

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)

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 [124], [123], and [187] 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 [124], [123], and [187]. See also Elasticity::Solutions::HalfSpaceMirror for an analytic solution that involves this boundary condition.

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

constexpr 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