What Does Broadband Field Refer to in Imaging Technologies?

In summary, "broadband field" refers to the 3D volume being imaged using a broadband signal, which can range from VLF to X-ray in EM radiation or from subsonic seismic imaging to ultrasonic examination in acoustic signals. As the bandwidth of the radiation increases, so does the volume of the imaged 3D field. An example of the use of "broadband field" can be found in a study using a finite-sized ultrathin metallic slab to encode subwavelength details of the broadband field radiated by an object.
  • #1
faryafada
17
0
Is broadband field, a wave that contains a range of wavelengths? I can not find a good definition for it
 
Engineering news on Phys.org
  • #2
In what context is the term “broadband field” used?
Broadband is a wide bandwidth or wide variation in frequency. Field might mean electromagnetic field.
 
  • #3
Baluncore said:
In what context is the term “broadband field” used?
Broadband is a wide bandwidth or wide variation in frequency. Field might mean electromagnetic field.
In a far field imaging system
 
  • #4
Broadband 3D imaging can be done with EM radiation from VLF to X-ray, or with acoustic signals from subsonic seismic imaging through to ultrasonic examination of materials.

“Broadband field” may refer to the 3D volume that is being imaged using a broadband signal.

As the bandwidth of the radiation increases, so does the volume of the imaged 3D field.
http://en.wikipedia.org/wiki/White_...n_between_spectral_width_and_coherence_length

Can you provide text or a link to an example of the use of "broadband field".
 
  • #5
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.115403
Please read the abstract, A finite-sized ultrathin metallic slab is used to encode subwavelength details of the broadband field radiated by an object.
Baluncore said:
Broadband 3D imaging can be done with EM radiation from VLF to X-ray, or with acoustic signals from subsonic seismic imaging through to ultrasonic examination of materials.

“Broadband field” may refer to the 3D volume that is being imaged using a broadband signal.

As the bandwidth of the radiation increases, so does the volume of the imaged 3D field.
http://en.wikipedia.org/wiki/White_...n_between_spectral_width_and_coherence_length

Can you provide text or a link to an example of the use of "broadband field".
 

Related to What Does Broadband Field Refer to in Imaging Technologies?

1. What is a broadband field?

A broadband field is a type of electromagnetic field that encompasses a wide range of frequencies. It is commonly used in telecommunications to transmit data and information at high speeds.

2. How is a broadband field different from a narrowband field?

A narrowband field is a type of electromagnetic field that is limited to a specific range of frequencies. In comparison, a broadband field covers a much wider range of frequencies, allowing for faster transmission of data and information.

3. What are some examples of broadband fields?

Some examples of broadband fields include radio waves, microwaves, and infrared radiation. These are all commonly used in telecommunications and wireless technologies.

4. How is a broadband field used in internet connections?

In internet connections, a broadband field is used to transmit data and information through fiber optic cables or through wireless signals. This allows for faster and more reliable internet speeds as compared to narrowband fields.

5. Are there any potential health risks associated with exposure to broadband fields?

There is ongoing research on the potential health risks of exposure to broadband fields, but currently there is no conclusive evidence that they have harmful effects on human health. As with any type of electromagnetic field, it is recommended to limit exposure to high levels for extended periods of time.

Similar threads

  • Electrical Engineering
Replies
7
Views
334
  • Electrical Engineering
Replies
23
Views
5K
Replies
1
Views
1K
  • Electrical Engineering
Replies
30
Views
2K
Replies
7
Views
2K
  • Classical Physics
Replies
3
Views
327
Replies
14
Views
1K
  • High Energy, Nuclear, Particle Physics
Replies
1
Views
1K
  • Classical Physics
2
Replies
42
Views
2K
Replies
7
Views
1K

Back
Top