The invention relates to an optoelectronic device including filter means (3)
for transmitting a selected spectral portion of light waves and for reflecting
a complementary spectral portion thereof, placed between means (4) for reflecting
the chosen spectral portion towards the filter means and converter means (1)
for transmitting the light waves to be filtered to the filter means. The converter
means are at a first distance (d1) from the filter means chosen so that
the waves that they transmit to them and the reflected complementary spectral portion
create a first standing wave whose associated electric field has a node in the
converter means (1) and at a second distance (d2) from the chosen
reflector means so that the chosen spectral portion and the chosen and reflected
spectral portion create a second standing wave whose associated electric field
has an antinode in the converter means.