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160:. Under these circumstances, the interferometric visibility is also known as the "Michelson visibility" or the "fringe visibility." For this type of interference, the sum of the intensities (powers) of the two interfering waves equals the average intensity over a given time or space domain. The visibility is written as:
798:
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877:
indicates the phase relationship of the original electric field. Any dissimilarity between the optical fields will decrease the visibility from the ideal. In this sense, the visibility is a measure of the
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926:. At large delays the photons do not interfere. At zero delays, the detection of coincident photon pairs is suppressed.
76:
to the sum of the powers of the individual waves. The interferometric visibility gives a practical way to measure the
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151:
222:
911:
140:
886:. This definition of interference directly applies to the interference of water waves and electric signals.
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115:. Alternately, the phase difference may be manually controlled by the operator, for example by adjusting a
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of two waves (or one wave with itself). A theoretical definition of the coherence is given by the
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varying over time or space. For example, the phase difference varies as a function of space in a
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68:, water waves, sound waves, or electrical signals. Visibility is defined as the ratio of the
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955:. Photons, atoms, electrons, neutrons, and molecules have exhibited interference in
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between two optical fields. A theoretical definition for this is given by the
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can exhibit interference fringes. Atomic populations show interference in a
918:
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69:
793:{\displaystyle \nu ={\frac {2{\sqrt {I_{1}I_{2}}}|\gamma |}{I_{1}+I_{2}}},}
103:) of the resulting wave oscillates, forming an interference pattern. The
431:{\displaystyle \nu ={\frac {I_{\max }-I_{\min }}{I_{\max }+I_{\min }}},}
894:
682:{\displaystyle I_{min}=I_{1}+I_{2}-2*{\sqrt {I_{1}*I_{2}}}*|\gamma |,}
565:{\displaystyle I_{max}=I_{1}+I_{2}+2*{\sqrt {I_{1}*I_{2}}}*|\gamma |,}
61:
1020:
917:
905:
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696:(consist of only single wavelength) point sources of the same
1008:"Fringe Visibility -- from Eric Weisstein's World of Physics"
216:
of the oscillating intensity and the average intensity:
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and as the phase difference between them varies, the
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448:is the maximum intensity of the oscillations and
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857:indicate the intensity of the respective wave.
947:, interference is ubiquitous. Some examples:
8:
943:and all objects can be considered waves in
455:the minimum intensity of the oscillations.
275:{\displaystyle A=(I_{\max }-I_{\min })/2,}
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700:, then the predicted visibility will be
27:Measure of interference in a wave system
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1062:: CS1 maint: archived copy as title (
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692:If the two optical fields are ideally
46:when in context) is a measure of the
7:
147:), interference manifests itself as
1080:Stedman Review of the Sagnac Effect
84:, using the notion of correlation.
202:{\displaystyle \nu =A/{\bar {I}},}
25:
1021:https://spie.org/samples/FG30.pdf
87:Generally, two or more waves are
984:List of types of interferometers
154:over time or space, also called
107:definition may be expanded to a
931:Visibility in quantum mechanics
914:is maximum (80%) at the center.
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99:(probability or population in
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957:double-slit interferometers
924:Hong–Ou–Mandel interference
900:Mach–Zehnder interferometer
355:So it can be rewritten as:
137:Mach–Zehnder interferometer
1111:
212:in terms of the amplitude
32:interferometric visibility
949:Bose–Einstein condensates
56:in any system subject to
912:double-slit interference
141:Michelson interferometer
870:{\displaystyle \gamma }
60:. Examples include as
36:interference visibility
18:Interference visibility
979:Optical interferometry
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989:Hong–Ou–Mandel effect
953:Ramsey interferometer
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850:{\displaystyle I_{2}}
825:
823:{\displaystyle I_{1}}
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145:Sagnac interferometer
937:Schrödinger equation
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127:Visibility in optics
74:interference pattern
969:Degree of coherence
910:Visibility in this
884:degree of coherence
113:two-slit experiment
109:visibility function
82:degree of coherence
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131:In linear optical
58:wave superposition
945:quantum mechanics
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101:quantum mechanics
66:quantum mechanics
40:fringe visibility
16:(Redirected from
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1038:. Archived from
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133:interferometers
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34:(also known as
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1095:Interferometry
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1074:External links
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974:Interferometry
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121:interferometer
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1045:on 2017-01-22
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941:wave equation
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59:
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54:
49:
45:
41:
37:
33:
19:
1047:. Retrieved
1040:the original
1027:
1016:
1002:
934:
902:is constant.
802:
698:polarization
691:
449:
442:
440:
354:
211:
155:
152:oscillations
130:
108:
89:superimposed
86:
53:interference
51:
43:
39:
35:
31:
29:
119:knob in an
1049:2016-09-25
995:References
935:Since the
135:(like the
44:visibility
42:, or just
880:coherence
865:γ
752:γ
711:ν
669:γ
661:∗
646:∗
631:∗
625:−
552:γ
544:∗
529:∗
514:∗
385:−
366:ν
297:¯
246:−
191:¯
171:ν
149:intensity
105:pointwise
97:intensity
78:coherence
70:amplitude
1089:Category
1058:cite web
963:See also
890:Examples
214:envelope
48:contrast
157:fringes
117:vernier
72:of the
803:where
441:where
143:, and
62:optics
1043:(PDF)
1036:(PDF)
939:is a
93:power
1064:link
830:and
38:and
30:The
453:min
446:max
418:min
405:max
393:min
380:max
327:min
314:max
254:min
241:max
95:or
50:of
1091::
1060:}}
1056:{{
959:.
340:2.
139:,
123:.
64:,
1066:)
1052:.
1010:.
843:2
839:I
816:1
812:I
788:,
780:2
776:I
772:+
767:1
763:I
756:|
748:|
740:2
736:I
730:1
726:I
720:2
714:=
677:,
673:|
665:|
654:2
650:I
641:1
637:I
628:2
620:2
616:I
612:+
607:1
603:I
599:=
594:n
591:i
588:m
584:I
560:,
556:|
548:|
537:2
533:I
524:1
520:I
511:2
508:+
503:2
499:I
495:+
490:1
486:I
482:=
477:x
474:a
471:m
467:I
450:I
443:I
426:,
414:I
410:+
401:I
389:I
376:I
369:=
336:/
332:)
323:I
319:+
310:I
306:(
303:=
294:I
270:,
267:2
263:/
259:)
250:I
237:I
233:(
230:=
227:A
197:,
188:I
181:/
177:A
174:=
20:)
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