the light will be trapped inside the medium until it
exits the medium but it doesnt need to exit the medium to be detected.
I don't understand the point made in this quote above. You can detect the light in and out of the medium, does that mean light has two forms that have subtle differences?
I was just saying that the light doesnt need to be
detected while it is trapped inside the medium.
the speed of light slows through a medium.
so the thickness of the medium causes the travel time
of light inside the medium to increase.
because the speed of light slows apx 40% through glass.
so before light enters a glass medium the light is
traveling at its normal speed through its current
medium such as air.
lets say we want to allow light to travel a distance
of 3 cm from point A to point B
and located between point A and point B there is a
1 cm thick glass medium that the light must pass through
in order to reach point B.
the light moves away from point A towards point B
and lets say the light has a speed of 300000 km/s
before the light enters the glass medium.
the light then enters the 1 cm thick glass medium.
the light then slows by 40% to 180000 km/s as it enters
the glass medium.
so while the light is traveling through the glass
medium the speed of the light is 180000 km/s vs 300000 km/s.
obviously when the light slows through the glass medium
then the travel time of the light from point A to point B
would be longer than the travel time of the light from
point A to point B if the 1 cm glass medium were not there.
so the thickness of the glass medium would determine the
amount of Time delay from point A to point B.
the light then exits the 1 cm glass medium and it
resumes its normal speed of 300000 km/s.
if a photo cell is located at point B then there
would be a Time delay of the light reaching the photo
cell.
and if there were 20 photo cells in a circle
like in the experiment you posted about where all
the energy from the light was directed into a single photo
cell.
then this would be a way to store the light inside the
glass medium long enough to allow each of the 20 photo cells
to collect and convert the light energy if each of the
photo cells had a glass medium between point A and point B.
ie...
1 light source. (point A )
20 glass mediums. ( of the same or different thicknesses )
20 photo cells. (point B )
1 capacitance array to collect and store the electricity.
this could be done 1 at a time or all 20 at the same time.
because the thickness of the glass medium would determine
when the light would reach the photo cells.
so if you have 20 different thicknesses of glass then
you would have 20 different time periods that the light
would reach the photo cells.
concerning the experiment you posted about where all the energy was directed into the single photo cell and no one
could understand why this happened the above does not
explain why this happens but it would provide a work around
to avoid it from happening.
and perhaps even more !!!