Download the app
educalingo
Search

Meaning of "group velocity" in the English dictionary

Dictionary
DICTIONARY
section

PRONUNCIATION OF GROUP VELOCITY

group velocity  [ɡruːp vɪˈlɒsətɪ] play
facebooktwitterpinterestwhatsapp

GRAMMATICAL CATEGORY OF GROUP VELOCITY

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Group velocity is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES GROUP VELOCITY MEAN IN ENGLISH?

Group velocity

The group velocity of a wave is the velocity with which the overall shape of the waves' amplitudes — known as the modulation or envelope of the wave — propagates through space. For example, imagine what happens if a stone is thrown into the middle of a very still pond. When the stone hits the surface of the water, a circular pattern of waves appears. It soon turns into a circular ring of waves with a quiescent center. The ever expanding ring of waves is the wave group, within which one can discern individual wavelets of differing wavelengths traveling at different speeds. The longer waves travel faster than the group as a whole, but they die out as they approach the leading edge. The shorter waves travel more slowly and they die out as they emerge from the trailing boundary of the group.

WORDS THAT RHYME WITH GROUP VELOCITY


anelasticity
ˌænɪlæsˈtɪsətɪ
antiuniversity
ˌæntɪˌjuːnɪˈvɜːsətɪ
ethnocentricity
ˌɛθnəʊsɛnˈtrɪsətɪ
high-velocity
ˌhaɪvɪˈlɒsətɪ
hyperviscosity
ˌhaɪpəvɪsˈkɒsətɪ
lysogenicity
ˌlaɪsəʊˈdʒəˈnɪsətɪ
neurotoxicity
ˌnjʊərəʊˌtɒkˈsɪsətɪ
nonuniversity
ˌnɒnˌjuːnɪˈvɜːsətɪ
obesity
əʊˈbiːsətɪ
ototoxicity
ˌəʊtəʊtɒkˈsɪsətɪ
phototoxicity
ˌfəʊtəʊtɒkˈsɪsətɪ
phytotoxicity
ˌfaɪtəʊtɒkˈsɪsətɪ
preuniversity
ˌpriːjuːnɪˈvɜːsətɪ
tenacity
tɪˈnæsətɪ
unveracity
ˌʌnvəˈræsətɪ
virtuosity
ˌvɜːtʃʊˈɒsətɪ

WORDS THAT BEGIN LIKE GROUP VELOCITY

group captain
group dynamics
group insurance
group marriage
Group of Eight
Group of Five
Group of Seven
Group of Seventy-Seven
Group of Ten
Group of Three
Group of Twenty Finance Ministers and Central Bank Governors
Group of Twenty-Four
group practice
group sex
group speed
group theory
group therapist
group therapy
group work
groupable

WORDS THAT END LIKE GROUP VELOCITY

angular velocity
atrocity
capacity
city
electricity
escape velocity
ethnicity
ferocity
hypervelocity
irreciprocity
muzzle velocity
orbital velocity
phase velocity
precocity
radial velocity
reciprocity
simplicity
terminal velocity
velocity
wave velocity

Synonyms and antonyms of group velocity in the English dictionary of synonyms

SYNONYMS

Translation of «group velocity» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF GROUP VELOCITY

Find out the translation of group velocity to 25 languages with our English multilingual translator.
The translations of group velocity from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «group velocity» in English.

Translator English - Chinese

群速度
1,325 millions of speakers

Translator English - Spanish

velocidad de grupo
570 millions of speakers

English

group velocity
510 millions of speakers

Translator English - Hindi

समूह वेग
380 millions of speakers
ar

Translator English - Arabic

مجموعة سرعة
280 millions of speakers

Translator English - Russian

групповая скорость
278 millions of speakers

Translator English - Portuguese

velocidade de grupo
270 millions of speakers

Translator English - Bengali

গ্রুপ বেগ
260 millions of speakers

Translator English - French

vitesse de groupe
220 millions of speakers

Translator English - Malay

Halaju kumpulan
190 millions of speakers

Translator English - German

Gruppengeschwindigkeit
180 millions of speakers

Translator English - Japanese

群速度
130 millions of speakers

Translator English - Korean

군속도
85 millions of speakers

Translator English - Javanese

Kecepatan kelompok
85 millions of speakers
vi

Translator English - Vietnamese

vận tốc nhóm
80 millions of speakers

Translator English - Tamil

குழு வேகம்
75 millions of speakers

Translator English - Marathi

गट गती
75 millions of speakers

Translator English - Turkish

Grup hızı
70 millions of speakers

Translator English - Italian

velocità di gruppo
65 millions of speakers

Translator English - Polish

prędkość grupowa
50 millions of speakers

Translator English - Ukrainian

групова швидкість
40 millions of speakers

Translator English - Romanian

viteza de grup
30 millions of speakers
el

Translator English - Greek

ταχύτητα ομάδας
15 millions of speakers
af

Translator English - Afrikaans

groepsnelheid
14 millions of speakers
sv

Translator English - Swedish

grupphastighet
10 millions of speakers
no

Translator English - Norwegian

gruppehastighet
5 millions of speakers

Trends of use of group velocity

TRENDS

TENDENCIES OF USE OF THE TERM «GROUP VELOCITY»

The term «group velocity» is regularly used and occupies the 78.470 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Regularly used
64
/100
The map shown above gives the frequency of use of the term «group velocity» in the different countries.
Principal search tendencies and common uses of group velocity
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «group velocity».

FREQUENCY OF USE OF THE TERM «GROUP VELOCITY» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «group velocity» during the past 500 years. Its implementation is based on analysing how often the term «group velocity» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about group velocity

EXAMPLES

10 ENGLISH BOOKS RELATING TO «GROUP VELOCITY»

Discover the use of group velocity in the following bibliographical selection. Books relating to group velocity and brief extracts from same to provide context of its use in English literature.
1
Group velocity in a multi-dimensional space
Phase and group velocities of isotropic and anisotropic waves are expressed analytically by the frequency-wave number vector relations and graphically with frequency curves for a multiple-dimensional space.
Takashi Ichiye, 1973
2
Scattering, Two-Volume Set: Scattering and Inverse ...
The direction of the group velocity U = V^co is given by the solid arrows. V*=n 1 + -Vi. dk k (75) where Vi is the component of the gradient perpendicular to the direction of propagation. Using spherical coordinates in wave-number space, the  ...
E R Pike, E. R. Pike, Pierre C. Sabatier, Pierre Celestin Sabatier, 2001
3
Cold Plasma Waves
The variation of the magnitude of the group velocity with frequency is discussed in Section 8.4 for longitudinal propagation, and in Section 11.4 for transverse propagation. The behaviour of the magnitude of the group velocity is treated in ...
H.G. Booker, 1984
4
The Solid Earth: An Introduction to Global Geophysics
The group velocity of surface waves is the velocity at which surface-wave energy of a given frequency travels. It is a constant for a given frequency. Therefore on Fig. 4.5(a) straight lines passing through the origin mark the surface-wave signal  ...
C. M. R. Fowler, 2005
5
Supercontinuum Generation in Optical Fibers
Calculated group-velocity profiles for the five fibres listed in Table 7.1. For each fibre the vertical lines indicate the experimentally measured location of a strong peak on the short-wavelength side of the output supercontinuum spectrum.
J. M. Dudley, J. R. Taylor, 2010
6
Slow Light Photonic Crystal Line-defect Waveguides
The group velocity of the gap guided mode is a function of structural parameters. It can even have different sign as shown in Fig. 3.1 by even.a and even.b modes. In the presented waveguide the folded branch of index guided mode has ...
Alexander Petrov, 2008
7
Coherence and Quantum Optics VIII: Proceedings of the ...
Superluminal light pulse propagation is observed at a negative group velocity of - c/315 through an atomic medium with little pulse distortion. Experimentally, a pulse propagating through the atomic vapor cell has its peak reaching the exit side ...
N.P. Bigelow, J.H. Eberly, C.R. Stroud Jr., 2004
8
Fast Light, Slow Light and Left-Handed Light
The concept of group velocity was evidently first introduced by William Rowan Hamilton in 1839 [17]. John Scott Russell, in his paper reporting the first observation of soliton water waves in 1844 [18], may also have been the first to observe ...
P.W. Milonni, 2004
9
Time and Matter: Venice, Italy, 11-17 August 2002 : ...
Experimentally, a light pulse propagating through the atomic vapor cell has its peak reaching the exit side before entering it, resulting in a negative transit time, and negative group velocity. We further review a recently proposed operational ...
‎2006
10
Electromagnetic and Optical Pulse Propagation 2: Temporal ...
The. Group. Velocity. Approximation. Because of its mathematical simplicity and direct physical interpretation, the group velocity approximation has gained widespread use in the physics, engineering, and mathematical science communitites.
Kurt E. Oughstun, 2009

10 NEWS ITEMS WHICH INCLUDE THE TERM «GROUP VELOCITY»

Find out what the national and international press are talking about and how the term group velocity is used in the context of the following news items.
1
Fiber guiding at the Dirac frequency beyond photonic bandgaps
... Dirac equation for relativistic particles: −ivD(σx∂x+σy∂y)Ψ=(ω−ωD)Ψ, where vD is the group velocity, ωD/2π is the Dirac frequency, σx and ... «Nature.com, Jun 15»
2
Ultrafast Dispersing Prisms
The LaKL21 model features a group velocity dispersion (GDV) of 600 fs2/cm. An SF10 model features a GDV of 1600 fs2/cm, while a UV fused ... «Photonics.com, May 15»
3
Atomic gas puts the brakes on light in optical fibres
... not the light's photons that are slowed but rather the envelope of their collective wave, which is represented by the photons' "group velocity". «physicsworld.com, May 15»
4
Femtosecond Pulses: Control Is Key to New Discoveries
This is known as positive group velocity dispersion (GVD). “So the laser pulses are often pre-chirped with negative GVD before they leave the laser head, ... «Photonics.com, May 15»
5
Focusing ultrashort laser pulses with achromatic doublets
The three effects that can increase pulse duration and spot size, and thus cause pulse intensity to decrease, are group velocity dispersion ... «SPIE Newsroom, May 15»
6
Lasers for Microscopy Major Trends
Moreover, this new OPO ensures shorter pulse width at the sample by means of a built-in group velocity dispersion precompensator. This is factory set to offset ... «Photonics.com, Apr 15»
7
Hollow-core photonic crystal fibers for high-power, ultrafast lasers
IC Kagome HC-PCFs exhibit outstanding guidance and delivery properties, low waveguide dispersion, and anomalous group velocity ... «SPIE Newsroom, Mar 15»
8
Ultrabroadband mid-IR frequency combs show promise for standoff …
... by using special 'chirped' dielectric mirrors in the OPO resonator, enabling compensation of group velocity variation over the whole spectrum. «SPIE Newsroom, Mar 15»
9
Diverse Applications Drive Lasers for Multiphoton Microscopy
With pulse-width options shorter than 75 fs and optional variable group velocity dispersion precompensation, Ti:S lasers deliver both the ... «Photonics.com, Mar 15»
10
GATE ECE/EC Answer Key 2015 Download -1st February 2015 …
Wave equation, Poynting vector. Plane waves: propagation through various media; reflection and refraction; phase and group velocity; skin ... «All India Roundup, Jan 15»

REFERENCE
« EDUCALINGO. Group velocity [online]. Available <https://educalingo.com/en/dic-en/group-velocity>. May 2024 ».
Download the educalingo app
en
English dictionary
Discover all that is hidden in the words on
index
a b c d e f g h i j k l m n o p q r s t u v w x y z