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Hollow-cathode lamp, the Glossary

A hollow-cathode lamp (HCL) is type of cold cathode lamp used in physics and chemistry as a spectral line source (e.g. for atomic absorption spectrometers) and as a frequency tuner for light sources such as lasers.^[1]

29 relations: Anode, Atomic absorption spectroscopy, Buffer gas, Cathode, Chemistry, Cold cathode, Collision, Electric current, Electron, Excited state, Frequency, Gas, Glass, Hollow cathode effect, Ionization, Laser, List of light sources, Lock-in amplifier, Noble gas, Optogalvanic effect, Photoionization, Photon, Physics, Plasma (physics), Plot (graphics), Resonance, Spectral line, Sputtering, Voltage.
Gas discharge lamps

Anode

An anode is an electrode of a polarized electrical device through which conventional current enters the device.

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Atomic absorption spectroscopy

Atomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES) is a spectroanalytical procedure for the quantitative determination of chemical elements by free atoms in the gaseous state.

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Buffer gas

A buffer gas is an inert or nonflammable gas.

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Cathode

A cathode is the electrode from which a conventional current leaves a polarized electrical device.

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Chemistry

Chemistry is the scientific study of the properties and behavior of matter.

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Cold cathode

A cold cathode is a cathode that is not electrically heated by a filament. Hollow-cathode lamp and cold cathode are gas discharge lamps.

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Collision

In physics, a collision is any event in which two or more bodies exert forces on each other in a relatively short time.

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Electric current

An electric current is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space.

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Electron

The electron (or in nuclear reactions) is a subatomic particle with a negative one elementary electric charge. Hollow-cathode lamp and electron are atomic physics.

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Excited state

In quantum mechanics, an excited state of a system (such as an atom, molecule or nucleus) is any quantum state of the system that has a higher energy than the ground state (that is, more energy than the absolute minimum).

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Frequency

Frequency (symbol f), most often measured in hertz (symbol: Hz), is the number of occurrences of a repeating event per unit of time.

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Gas

Gas is one of the four fundamental states of matter.

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Glass

Glass is an amorphous (non-crystalline) solid.

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Hollow cathode effect

The hollow cathode effect allows electrical conduction at a lower voltage or with more current in a cold-cathode gas-discharge lamp when the cathode is a conductive tube open at one end than a similar lamp with a flat cathode. Hollow-cathode lamp and hollow cathode effect are atomic physics and gas discharge lamps.

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Ionization

Ionization (or ionisation specifically in Britain, Ireland, Australia and New Zealand) is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical changes. Hollow-cathode lamp and Ionization are atomic physics.

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Laser

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.

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List of light sources

This is a list of sources of light, the visible part of the electromagnetic spectrum.

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Lock-in amplifier

A lock-in amplifier is a type of amplifier that can extract a signal with a known carrier wave from an extremely noisy environment.

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Noble gas

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Optogalvanic effect

The Optogalvanic effect is the change in the conductivity of a gas discharge induced by a light source (typically a laser).

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Photoionization

Photoionization is the physical process in which an ion is formed from the interaction of a photon with an atom or molecule.

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Photon

A photon is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force.

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Physics

Physics is the natural science of matter, involving the study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force.

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Plasma (physics)

Plasma is one of four fundamental states of matter (the other three being solid, liquid, and gas) characterized by the presence of a significant portion of charged particles in any combination of ions or electrons.

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Plot (graphics)

A plot is a graphical technique for representing a data set, usually as a graph showing the relationship between two or more variables.

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Resonance

In physics, resonance refers to a wide class of phenomena that arise as a result of matching temporal or spatial periods of oscillatory objects.

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Spectral line

A spectral line is a weaker or stronger region in an otherwise uniform and continuous spectrum.

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Sputtering

In physics, sputtering is a phenomenon in which microscopic particles of a solid material are ejected from its surface, after the material is itself bombarded by energetic particles of a plasma or gas.

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Voltage

Voltage, also known as (electrical) potential difference, electric pressure, or electric tension is the difference in electric potential between two points.

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References

[1] https://en.wikipedia.org/wiki/Hollow-cathode_lamp

Also known as Hollow cathode lamp, Hollow cathode lamps.