[feb]Nanophotonics

Question 1

what is nanometer?

Answer 1

• unit of length

- 1×10−9 m

Question 2

Nanophotonic?

Answer 2

• Nanometer + Photonics

- Mhnje light la jar nanometer scale var gheun gelo tar to kasa behave karel yacha study mhnje nanophotonics

Question 3

Related PYQ

Answer 3

Q1. With reference to the carbon nanotubes, consider the following statements:

They can be used as carriers of drugs and antigens in the human body.
They can be made into artificial blood capillaries for an injured part of human body.
They can be used in biochemical sensors.
Carbon nanotubes are biodegradable
Which of the statements given above are correct?

(a) 1 and 2 only
(b) 2, 3 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3, and 4

Answer: D

Question 4

Significance of nanophotonics or nano-optics?

Answer 4

• desirable properties for optical communication including low threshold current (which helps power efficiency) and fast modulation (which means more data transmission).
• have properties like low noise, high speed, and low voltage and power.
• potential in fields ranging from biochemistry to electrical engineering. Nanophotonics would make it possible to go beyond current electronics and build up circuits driven entirely by photons (light).
• technique can help achieve an unprecedented level of miniaturisation and pave the way to all-optical-technology such as pliable, wearable devices operated by light entirely.

Question 5

What is technique named “mechanophotonics”?

Answer 5

Using this technique one can move, slice, bend, and lift micron-sized waveguiding crystals using atomic force microscopy.

Question 6

What are polymer microcavities or microresonators?

Answer 6

Theses are light-trapping elements