EXPERIMENTS IN OPTICS PAG 2

UO-11 HOLOGRAPHY

Creating and reconstructing many
types of holograms can be done
using different setups from basic to
advance .
UK-scientific supply different systems
for recording holography and
different sizes of plates, chemicals ,
timers and all accessories.

UO- 12 SPECKLES INTERFEROMETRY

nformation could be obtained about the
high-resolution structure of the object from
the speckle patterns using Fourier analysis
(speckle ESPI is a technique which uses
laser light, together with video detection,
recording and processing to visualise static
and dynamic displacements of components
with optically rough surfaces. The
visualisation is in the form of fringes on the
image where each fringe normally
represents a displacement of half a
wavelength of the light used (i.e. quarter of
a micrometre or so).
ESPI can be used for stress and strain
measurement, vibration mode analysis and
nondestructive testing.

UO-14 OPTICAL FILTERS
Optical filters selectively transmit light
in a particular range of wavelengths,
that is colours, while blocking the
remainder. They can usually pass
long wavelengths only (long pass),
short wavelengths only (short pass),
or a band of wavelengths, blocking
both longer and shorter wavelengths
(band pass). The passband may be
narrower or wider; the transition or
cut off between maximal and minimal
transmission can be sharp or gradual.

UO-13 SPECTRAL ANALYSIS

Demonstration of a spectrometer,use
to measure wavelengths, grating
frequency,absorption ...... and
studying the effect of the slit width
and other parameters .

UO-15 RADIO AND PHOTOMETRY
(INVERSE SQUARE LAW)

The inverse square law describes the
intensity of light at different distances
from a light source, and shows that
the intensity of light is inversely
proportional to the square of the
distance

UO-16 DOUBLE REFRACTION OF LIGHT

in this experiment can investigate:
Extra and extraordinary beam