Simple technique for the generation of plane surface normal to optic axis direction of uniaxial crystal

2007 ◽  
Vol 46 (9) ◽  
pp. 1435 ◽  
Author(s):  
Sanjib Chatterjee ◽  
Y. Pavan Kumar
Keyword(s):  
Simple Technique ◽  
Plane Surface ◽  
Uniaxial Crystal ◽  
Optic Axis ◽  
Axis Direction ◽  
Surface Normal

scholarly journals The analogy between Lesage’s theory of gravitation and the repulsion of light

1905 ◽  
Vol 76 (511) ◽  
pp. 387-410 ◽  
Keyword(s):  
Plane Surface ◽  
Linear Dimensions ◽  
Surface Normal ◽  
Tangential Momentum ◽  
Theory Of Gravitation ◽  
Normal Momentum

I am not aware that anyone has taken the trouble to work out Lesage's theory, except in the case where the particles of gross matter, subjected to the bombardment of ultramundane corpuscles, are at a distance apart which is a large multiple of the linear dimensions of either of them. Some years ago I had the curiosity to investigate the case where the particles are near together, and having been reminded of my work by reading Professor Poynting’s paper on the pressure of radiation, I have thought it might be worth while to publish my solution, together with some recent additions thereto. If a corpuscle of mass m moving with velocity v impinges on a plane surface, so that the inclination of its direction of motion before impact to the normal to the surface is ϧ , it communicates to the surface normal momentum kmv cos ϧ , and tangential momentum k'mv sin ϧ ; where k is 1 for complete inelasticity, and 2 for perfect elasticity, and k' is 0 for perfect smoothness and 1 for Perfect roughness.

scholarly journals Birefrince Characteristics of an Optical Element

2019 ◽  
Vol 8 (9S3) ◽  
pp. 801-803
Keyword(s):  
Phase Difference ◽  
Optical Element ◽  
Uniaxial Crystal ◽  
Optic Axis ◽  
Intensity Measurement ◽  
Double Refraction ◽  
Varying Thickness

Phase difference variation in uniaxial crystal is investigated for varying thickness. Using double refraction property and optic axis method leads to the intensity measurement. The periphery example got when a unique (or focalized) shaft experiences an example of birefringent gem between two polarizers contains data which is intrinsic of the crystalline example under examination.

Conical extinction curves: a new universal stage technique

1964 ◽  
Vol 33 (265) ◽  
pp. 853-867 ◽  
Author(s):  
N. Joel ◽  
F. E. Tocher
Keyword(s):  
Uniaxial Crystal ◽  
Optic Axis ◽  
Circular Cone ◽  
Biaxial Crystal ◽  
Universal Stage

SummaryNew generalized extinction curves, derived from wave-normals located on a circular cone, are presented. They may be used with the universal stage for the accurate location of up to all three of the indicatrix axes, α, β, γ, of any biaxial crystal, or the optic axis of any uniaxial crystal.

Directional Dispersion and Assignment of Optical Phonons in LiNbO3

1972 ◽  
Vol 27 (8-9) ◽  
pp. 1187-1192 ◽  
Author(s):  
R. Claus ◽  
J. Brandmüller ◽  
G. Borstel ◽  
E. Wiesendanger ◽  
L. Steffan
Keyword(s):  
Short Wavelength ◽  
Uniaxial Crystal ◽  
Optic Axis ◽  
Optical Phonons ◽  
Dispersion Theory ◽  
Phonon Modes ◽  
Phonon Wave Vector ◽  
Complete Assignment ◽  
Firm Basis ◽  
Degenerate Type

Abstract From the general polariton dispersion theory it can be shown that in an uniaxial crystal the frequencies of optical phonons * which are identical to those of the short wavelength polaritons depend on the angle Θ between the optic axis and the phonon wave vector. For Θ=0 and Θ=Π/2 the phonons are exactly transversal or longitudinal so that they can be assigned to be of totally symmetric or twofold degenerate type. Careful measurements of the directional dispersion of all phonon modes of LiNbO3 form a firm basis for a new complete assignment. 6 of the total number of 13 dispersion branches previously given in the literature had to be reassigned.

A Case of Double Reflexion

1927 ◽  
Vol 23 (8) ◽  
pp. 951-952
Author(s):  
E. T. S. Appleyard ◽  
H. W. B. Skinner
Keyword(s):  
Uniaxial Crystal ◽  
Optic Axis ◽  
The Other ◽  
Double Refraction ◽  
The Right

We recently had occasion to have a right-angled quartz prism made with the optic axis of the quartz perpendicular to one of the short sides of the right-angled triangle (Fig. 1). The prism has the property that it gives two images when light enters perpendicular to one of the faces and, after internal reflexion at the hypotenuse, passes out at right angles to the other face. It was at first sight rather difficult to see why this doubling of the image occurs, since the incidence on both faces of the prism is normal and quartz is a uniaxial crystal, there can be no double refraction occurring.

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