Quiz International Day of Light 2022

What is the official language at INL?

• Portuguese

• English

• Spanish

• Esperanto

What is done mainly at INL?

• Nanotechnology Research and Development for the Benefit of Society

• Organization of Scientific and Educational Events

• Arts and Graphic Design of technological instruments

• Software development

What is a hologram?

• A rare shiny Pokemon card or Panini Sticker

• Digital 3D projection technology to see late artists in concerts

• Record of the interference pattern used to modulate a light field wavefront

• 3D technology where images are formed by high speed rotating light strips

What happens when light shines through a surface relief diffractive optical element?

• The individual light rays are bent

• The phase of the wavefront is modulated by the micro topography

• The incident light beam is split into multiple beams

• The intensity of the light beam is amplified

The two-photon polymerization technique:

• Does not allow the fabrication of complex structures

• Requires a thermally responsive material

• Usually, it allows the fabrication of large structures

• Requires a focused laser beam

For cell fluorescence assays it is essential to:

• Apply dyes with different emission wavelengths

• Use dyes with overlapping wavelengths

• Use a normal optical microscope

• Choose randomly the laser that excites the dye

How can light be used to fabricate Organ-on-chip devices?

• To crosslink a photoresist making it extremely difficult to dissolve

• To make a photoresist soluble to the developer

• To cut polymers by laser

• All the above

In fluorescence, the phenomenon called Stoke’s shift means that the wavelength of the emitted photons is always?

• Longer than the wavelength of the absorbed photons

• The same as the wavelength of the absorbed photons

• Shorter than the wavelength of the absorbed photons

• None of the above

Which promising electronic energy transfer type has been proven to be present in nature?

• Förster Energy transfer

• Quantum-Coherent Energy transfer

• Incoherent Energy transfer

• Dexter energy transfer

What dyes used for light harvesting are known to non-covalently attach to DNA duplexes / form well organized aggregates?

• Cyanines

• Coumarins

• Porphyrins

• Quantum dots