Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!

Optical spectrometer

Index Optical spectrometer

An optical spectrometer (spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials. [1]

63 relations: Abscissa and ordinate, Amici prism, Astronomy, Caesium, Charge-coupled device, Chemistry, Circular dichroism, Collimator, Computer, Diffraction grating, Dispersion (optics), Dispersive prism, Electromagnetic spectrum, Electronvolt, Far infrared, Fraunhofer lines, Gamma ray, Gustav Kirchhoff, Hubble sequence, Hubble's law, Imaging spectrometer, Incandescence, Intensity (physics), International Union of Pure and Applied Chemistry, Joseph von Fraunhofer, Journal of Chemical Education, Light, List of light sources, Main sequence, Mass spectrometry, Microwave, Monochromator, Pearson Education, Photodetector, Photographic film, Photographic paper, Photometry (optics), Photomultiplier, Photon, Phytochrome, Polarization (waves), Polychromator, Prism spectrometer, Radio, Refracting telescope, Refraction, Robert Bunsen, Rubidium, Scanning mobility particle sizer, Sodium, ..., Sodium-vapor lamp, Spectral density, Spectral line, Spectrometer, Spectrophotometry, Spectroradiometer, Spectroscopy, Spectrum analyzer, Stellar classification, Ultraviolet, Wavelength, Wavenumber, X-ray. Expand index (13 more) »

Abscissa and ordinate

In mathematics, the abscissa (plural abscissae or abscissæ or abscissas) and the ordinate are respectively the first and second coordinate of a point in a coordinate system.

New!!: Optical spectrometer and Abscissa and ordinate · See more »

Amici prism

An Amici prism, named for the astronomer Giovanni Amici, is a type of compound dispersive prism used in spectrometers.

New!!: Optical spectrometer and Amici prism · See more »


Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.

New!!: Optical spectrometer and Astronomy · See more »


Caesium (British spelling and IUPAC spelling) or cesium (American spelling) is a chemical element with symbol Cs and atomic number 55.

New!!: Optical spectrometer and Caesium · See more »

Charge-coupled device

A charge-coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value.

New!!: Optical spectrometer and Charge-coupled device · See more »


Chemistry is the scientific discipline involved with compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behavior and the changes they undergo during a reaction with other compounds.

New!!: Optical spectrometer and Chemistry · See more »

Circular dichroism

Circular dichroism (CD) is dichroism involving circularly polarized light, i.e., the differential absorption of left- and right-handed light.

New!!: Optical spectrometer and Circular dichroism · See more »


A collimator is a device that narrows a beam of particles or waves.

New!!: Optical spectrometer and Collimator · See more »


A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.

New!!: Optical spectrometer and Computer · See more »

Diffraction grating

In optics, a diffraction grating is an optical component with a periodic structure that splits and diffracts light into several beams travelling in different directions.

New!!: Optical spectrometer and Diffraction grating · See more »

Dispersion (optics)

In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency.

New!!: Optical spectrometer and Dispersion (optics) · See more »

Dispersive prism

In optics, a dispersive prism is an optical prism, usually having the shape of a geometrical triangular prism, used as a spectroscopic component.

New!!: Optical spectrometer and Dispersive prism · See more »

Electromagnetic spectrum

The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.

New!!: Optical spectrometer and Electromagnetic spectrum · See more »


In physics, the electronvolt (symbol eV, also written electron-volt and electron volt) is a unit of energy equal to approximately joules (symbol J).

New!!: Optical spectrometer and Electronvolt · See more »

Far infrared

Far infrared (FIR) is a region in the infrared spectrum of electromagnetic radiation.

New!!: Optical spectrometer and Far infrared · See more »

Fraunhofer lines

In physics and optics, the Fraunhofer lines are a set of spectral lines named after the German physicist Joseph von Fraunhofer (1787–1826).

New!!: Optical spectrometer and Fraunhofer lines · See more »

Gamma ray

A gamma ray or gamma radiation (symbol γ or \gamma), is penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei.

New!!: Optical spectrometer and Gamma ray · See more »

Gustav Kirchhoff

Gustav Robert Kirchhoff (12 March 1824 – 17 October 1887) was a German physicist who contributed to the fundamental understanding of electrical circuits, spectroscopy, and the emission of black-body radiation by heated objects.

New!!: Optical spectrometer and Gustav Kirchhoff · See more »

Hubble sequence

The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1926.

New!!: Optical spectrometer and Hubble sequence · See more »

Hubble's law

Hubble's law is the name for the observation in physical cosmology that.

New!!: Optical spectrometer and Hubble's law · See more »

Imaging spectrometer

An imaging spectrometer is an instrument used in hyperspectral imaging and imaging spectroscopy to acquire a spectrally-resolved image of an object or scene, often referred to as a datacube due to the three-dimensional representation of the data.

New!!: Optical spectrometer and Imaging spectrometer · See more »


Incandescence is the emission of electromagnetic radiation (including visible light) from a hot body as a result of its temperature.

New!!: Optical spectrometer and Incandescence · See more »

Intensity (physics)

In physics, intensity is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.

New!!: Optical spectrometer and Intensity (physics) · See more »

International Union of Pure and Applied Chemistry

The International Union of Pure and Applied Chemistry (IUPAC) is an international federation of National Adhering Organizations that represents chemists in individual countries.

New!!: Optical spectrometer and International Union of Pure and Applied Chemistry · See more »

Joseph von Fraunhofer

Joseph Ritter von Fraunhofer (6 March 1787 – 7 June 1826) was a Bavarian physicist and optical lens manufacturer.

New!!: Optical spectrometer and Joseph von Fraunhofer · See more »

Journal of Chemical Education

The Journal of Chemical Education is a monthly peer-reviewed academic journal available in both print and electronic versions.

New!!: Optical spectrometer and Journal of Chemical Education · See more »


Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.

New!!: Optical spectrometer and Light · See more »

List of light sources

This is a list of sources of light, including both natural and artificial processes that emit light.

New!!: Optical spectrometer and List of light sources · See more »

Main sequence

In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.

New!!: Optical spectrometer and Main sequence · See more »

Mass spectrometry

Mass spectrometry (MS) is an analytical technique that ionizes chemical species and sorts the ions based on their mass-to-charge ratio.

New!!: Optical spectrometer and Mass spectrometry · See more »


Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between and.

New!!: Optical spectrometer and Microwave · See more »


A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider range of wavelengths available at the input.

New!!: Optical spectrometer and Monochromator · See more »

Pearson Education

Pearson Education (see also Pearson PLC) is a British-owned education publishing and assessment service to schools and corporations, as well as directly to students.

New!!: Optical spectrometer and Pearson Education · See more »


Photosensors or photodetectors are sensors of light or other electromagnetic energy.

New!!: Optical spectrometer and Photodetector · See more »

Photographic film

Photographic film is a strip or sheet of transparent plastic film base coated on one side with a gelatin emulsion containing microscopically small light-sensitive silver halide crystals.

New!!: Optical spectrometer and Photographic film · See more »

Photographic paper

Photographic paper is a paper coated with a light-sensitive chemical formula, used for making photographic prints.

New!!: Optical spectrometer and Photographic paper · See more »

Photometry (optics)

Photometry is the science of the measurement of light, in terms of its perceived brightness to the human eye.

New!!: Optical spectrometer and Photometry (optics) · See more »


Photomultiplier tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically vacuum phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum.

New!!: Optical spectrometer and Photomultiplier · See more »


The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).

New!!: Optical spectrometer and Photon · See more »


Phytochromes are a class of photoreceptor in plants, bacteria and fungi use to detect light.

New!!: Optical spectrometer and Phytochrome · See more »

Polarization (waves)

Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.

New!!: Optical spectrometer and Polarization (waves) · See more »


A polychromator is an optical device that is used to disperse light into different directions to isolate parts of the spectrum of the light.

New!!: Optical spectrometer and Polychromator · See more »

Prism spectrometer

A prism spectrometer is an optical spectrometer which uses a dispersive prism as its dispersive element.

New!!: Optical spectrometer and Prism spectrometer · See more »


Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width.

New!!: Optical spectrometer and Radio · See more »

Refracting telescope

A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope).

New!!: Optical spectrometer and Refracting telescope · See more »


Refraction is the change in direction of wave propagation due to a change in its transmission medium.

New!!: Optical spectrometer and Refraction · See more »

Robert Bunsen

Robert Wilhelm Eberhard Bunsen (30 March 1811N1 – 16 August 1899) was a German chemist.

New!!: Optical spectrometer and Robert Bunsen · See more »


Rubidium is a chemical element with symbol Rb and atomic number 37.

New!!: Optical spectrometer and Rubidium · See more »

Scanning mobility particle sizer

A scanning mobility particle sizer (SMPS) is an analytical instrument that measures the size and number concentration of aerosol particles with diameters from 2.5 nm to 1000 nm.

New!!: Optical spectrometer and Scanning mobility particle sizer · See more »


Sodium is a chemical element with symbol Na (from Latin natrium) and atomic number 11.

New!!: Optical spectrometer and Sodium · See more »

Sodium-vapor lamp

A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm.

New!!: Optical spectrometer and Sodium-vapor lamp · See more »

Spectral density

The power spectrum S_(f) of a time series x(t) describes the distribution of power into frequency components composing that signal.

New!!: Optical spectrometer and Spectral density · See more »

Spectral line

A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies.

New!!: Optical spectrometer and Spectral line · See more »


A spectrometer is a scientific instrument used to separate and measure spectral components of a physical phenomenon.

New!!: Optical spectrometer and Spectrometer · See more »


In chemistry, spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength.

New!!: Optical spectrometer and Spectrophotometry · See more »


Spectroradiometers are devices designed to measure the spectral power distribution of a source.

New!!: Optical spectrometer and Spectroradiometer · See more »


Spectroscopy is the study of the interaction between matter and electromagnetic radiation.

New!!: Optical spectrometer and Spectroscopy · See more »

Spectrum analyzer

A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument.

New!!: Optical spectrometer and Spectrum analyzer · See more »

Stellar classification

In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

New!!: Optical spectrometer and Stellar classification · See more »


Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

New!!: Optical spectrometer and Ultraviolet · See more »


In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.

New!!: Optical spectrometer and Wavelength · See more »


In the physical sciences, the wavenumber (also wave number or repetency) is the spatial frequency of a wave, measured in cycles per unit distance or radians per unit distance.

New!!: Optical spectrometer and Wavenumber · See more »


X-rays make up X-radiation, a form of electromagnetic radiation.

New!!: Optical spectrometer and X-ray · See more »

Redirects here:

Multi-Object Spectrometer, Optical Spectrometer, Optical Spectrum Analyzer, Optical spectrum analyzer, Spectroscope.


[1] https://en.wikipedia.org/wiki/Optical_spectrometer

Hey! We are on Facebook now! »