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Interference in a thick plate at large angle of incidence

Technical Report:

Abstract

A new approach to the interference in a plane parallel plate is introduced which is valid for any angle of incidence and any thickness. It is shown that the interference in a plate can be interpreted as the interference in a double-slit and the corresponding parameters are derived. It is also shown that for a particular angle of incidence, which depends only on the refractive index, the interfringes are minimum. It is proved theoretically and verified experimentally that the interference around this particular angle of incidence has several exploitable features which include: a) In thick plates large numbers of equidistant fringes are formed which are very adequate for producing interference gratings. b) It provides, in comparison to the conventional interferometric methods, an easier and more accurate means for direct measurement of wave-length. c) Multiple-beam interference at this particular angle improve the accuracy of the measurement of the fine structures of the atomic spectra, compared to other interferometric methods. (author). 4 refs, 4 figs.
Authors:
Tavassoli, M T; [1]  Shah Shehany, F [2] 
  1. International Centre for Theoretical Physics, Trieste (Italy)
  2. Alzahra Univ., Tehran (Iran). Dept. of Physics
Publication Date:
Jun 01, 1991
Product Type:
Technical Report
Report Number:
LAMP-91/4
Reference Number:
SCA: 664000; PA: AIX-22:081707; SN: 91000608871
Resource Relation:
Other Information: PBD: Jun 1991; Related Information: LAMP series report (Laser, Atomic and Molecular Physics)
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; VISIBLE RADIATION; INTERFERENCE; INCIDENCE ANGLE; OPTICS; PLATES; REFLECTION; 664000; ATOMIC AND MOLECULAR PHYSICS
OSTI ID:
10104781
Research Organizations:
International Centre for Theoretical Physics (ICTP), Trieste (Italy)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ON: DE92609182; TRN: XA9129685081707
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
15 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Tavassoli, M T, and Shah Shehany, F. Interference in a thick plate at large angle of incidence. IAEA: N. p., 1991. Web.
Tavassoli, M T, & Shah Shehany, F. Interference in a thick plate at large angle of incidence. IAEA.
Tavassoli, M T, and Shah Shehany, F. 1991. "Interference in a thick plate at large angle of incidence." IAEA.
@misc{etde_10104781,
title = {Interference in a thick plate at large angle of incidence}
author = {Tavassoli, M T, and Shah Shehany, F}
abstractNote = {A new approach to the interference in a plane parallel plate is introduced which is valid for any angle of incidence and any thickness. It is shown that the interference in a plate can be interpreted as the interference in a double-slit and the corresponding parameters are derived. It is also shown that for a particular angle of incidence, which depends only on the refractive index, the interfringes are minimum. It is proved theoretically and verified experimentally that the interference around this particular angle of incidence has several exploitable features which include: a) In thick plates large numbers of equidistant fringes are formed which are very adequate for producing interference gratings. b) It provides, in comparison to the conventional interferometric methods, an easier and more accurate means for direct measurement of wave-length. c) Multiple-beam interference at this particular angle improve the accuracy of the measurement of the fine structures of the atomic spectra, compared to other interferometric methods. (author). 4 refs, 4 figs.}
place = {IAEA}
year = {1991}
month = {Jun}
}