In the double-slit experiment, the two slits are illuminated by a single laser beam.

Consider a beam, fixed at one end and having a mass attached to the other ; this would be a single degree of freedom ( SDoF ) oscillator.

The specialist Datahand keyboard uses optical technology to sense keypresses with a single light beam and sensor per key.

Temporal ( or longitudinal ) coherence implies a polarized wave at a single frequency whose phase is correlated over a relatively large distance ( the coherence length ) along the beam.

In a few situations it is possible to obtain lasing with only a single pass of EM radiation through the gain medium, and this produces a laser beam without any need for a resonant or reflective cavity ( see for example nitrogen laser ).

Monorails are both guided and supported via interaction with the same single beam, in contrast to other guided systems such as Rubber-tyred metros, such as the Sapporo Municipal Subway ; or guided buses or trams, such as Translohr.

The intensity I of light scattered by a single small particle from a beam of unpolarized light of wavelength λ and intensity I < sub > 0 </ sub > is given by:

The Operation Pinguin V-2 offensive began on 8 September 1944, when Lehr-und Versuchsbatterie No. 444 () launched a single rocket guided by a radio beam directed at Paris.

In the analysis of the single slit, the non-zero width of the slit is taken into account, and each point in the aperture is taken as the source of one contribution to the beam of light ( Huygen's wavelets ).

The oldest and most precise method of X-ray crystallography is single-crystal X-ray diffraction, in which a beam of X-rays strikes a single crystal, producing scattered beams.

In the second step, the crystal is placed in an intense beam of X-rays, usually of a single wavelength ( monochromatic X-rays ), producing the regular pattern of reflections.

In order to increase the purity of the isobaric beam, laser ionization can take place inside the ionizer cavity to selectively ionize a single element chain of interest.

This design utilizes a single piece of material and becomes flexible by removal of material along a spiral path resulting in a curved flexible beam of helical shape.

The section of the main line between Brentford and Braunston ( formerly the Grand Junction Canal ), was built as a ' wide ' or ' broad ' canal-that is, its locks were wide enough to accommodate two narrowboats abreast ( side by side ) or a single wide barge up to 14 feet ( 4. 27 m ) in beam.

Of the 22 buildings excavated three were sunken huts, 17 are rectangular founded on individual post holes, one is represented by post holes between which are beam slots, and one by eight single large posts.

) in a beam of light from a single opening in a window and observed the fringes of color in the shadow and to the sides of the card.

It is capable of destroying a planet with a single destructive energy beam.

A spectrophotometer can be either single beam or double beam.

In a single beam instrument ( such as the Spectronic 20 ), all of the light passes through the sample cell.

As only a single optical path is available, these are single beam instruments.

At the instant of any observation of an object, the apparent position of the object is displaced from its true position by an amount which depends solely upon the transverse component of the velocity of the observer, with respect to the vector of the incoming beam of light ( i. e., the line actually taken by the light on its path to the observer ).

The light beam from a distant object cannot itself have any transverse velocity component, or it could not ( by definition ) be seen by the observer, since it would miss the observer.

Another way to state this is that the emitting object may have a transverse velocity with respect to the observer, but any light beam emitted from it which reaches the observer, cannot, for it must have been previously emitted in such a direction that its transverse component has been " corrected " for.

When looking at a cross section of a beam of light, the length over which the phase is correlated is called the transverse coherence length.

) There are variants of μSR, e. g. muon spin rotation, which is affected by the presence of a magnetic field applied transverse to the muon beam direction ( since muons are typically produced in a spin-polarized state from the decay of pions ), and avoided level crossing ( ALC ), which is also called level crossing resonance ( LCR ).

The New Testament writings about the crucifixion of Jesus do not speak specifically about the shape of that cross, but the early writings that do speak of its shape, from about the year 100 on, describe it as shaped like the letter T ( the Greek letter tau ) or as composed of an upright and a transverse beam, sometimes with a small ledge in the upright.

In optics, a Gaussian beam is a beam of electromagnetic radiation whose transverse electric field and intensity ( irradiance ) distributions are well approximated by Gaussian functions.

For both families, the lowest-order solution describes a Gaussian beam, while higher-order solutions describe higher-order transverse modes in an optical resonator.

The Gaussian beam is a transverse electromagnetic ( TEM ) mode.

In terms of the complex beam parameter, a Gaussian field with one transverse dimension is proportional to

At Jesus ' crucifixion the Jews had no wood for the transverse beam of the cross, so Judas produced the staff for that purpose.

because he overlooked that the aether wind also affects the transverse beam travel time.

This way, only a single transverse mode is supported and one ends up with a diffraction-limited beam.

This can be used to " seed " the cavity with a beam that has desired characteristics ( such as transverse mode or wavelength ).

For biophotonic applications the most commonly used laser diodes are edge emitting / ridge waveguide diodes, which are single transverse mode and can be optimized to an almost perfect TEM00 beam quality.

As the stored particle beam, usually electrons, pass through the ID the alternating magnetic field experienced by the particles causes their trajectery to undergo a transverse oscillation.

A transverse mode of a beam of electromagnetic radiation is a particular electromagnetic field pattern of radiation measured in a plane perpendicular ( i. e., transverse ) to the propagation direction of the beam.

* Double cantilever beam tests ( DCB ) measure the mode I fracture resistance of adhesives in a fracture mechanics framework.

Nonconductive specimens tend to charge when scanned by the electron beam, and especially in secondary electron imaging mode, this causes scanning faults and other image artifacts.

The most common imaging mode collects low-energy (< 50 eV ) secondary electrons that are ejected from the k-orbitals of the specimen atoms by inelastic scattering interactions with beam electrons.

Solving this differential equation yields an infinite set of functions, of which the Gaussian beam is the lowest-order solution or mode.

The HyGG profile while beam propagates along has a dramatic change and it is not a stable mode below the Rayleigh range.

For single spatial mode lasers, using symmetrical lenses, the collimated beam ends up being elliptical in shape, due to the difference in the vertical and lateral divergences.

The orbit path repeats every 24 days, this means that the satellite is in exactly the same location and can take the same image ( same beam mode and beam position ) every 24 days.

The condensor lenses are responsible for primary beam formation, whilst the objective lenses focus the beam that comes through the sample itself ( in STEM scanning mode, there are also objective lenses above the sample to make the incident electron beam convergent ).

Although the X-ray target is removed in electron mode, the beam must be fanned out by sets of thin scattering foils in order to achieve flat and symmetric dose profiles in the treated tissue.

Most optical traps operate with a Gaussian beam ( TEM < sub > 00 </ sub > mode ) profile intensity.

If one end of the optical fiber is moulded into a lens-like facet, the nearly gaussian beam carried by a single mode standard fiber will be focussed at some distance from the fiber tip.

They are widely used in laboratory demonstrations in the field of optics in view of their relatively low cost and ease of operation compared to other visible lasers producing beams of similar quality in terms of spatial coherence ( a single mode gaussian beam ) and long coherence length ( however since about 1990 semiconductor lasers have offered a lower cost alternative for many such applications ).

In the beginning, accelerators were built for particle physics, and synchrotron radiation was used in " parasitic mode " when bending magnet radiation had to be extracted by drilling extra holes in the beam pipes.

For example, if a vibrating beam with both ends pinned displayed a mode shape of half of a sine wave ( one peak on the vibrating beam ) it would be vibrating in mode 1.