Laboratory work, TE or TM polarization?

AI Thread Summary
To determine the TE vs. TM polarization modes of an IR laser, a polarizer and a half-wave plate can be utilized effectively. The laser's linear polarization and configuration for a single longitudinal mode close to TEM00 are key factors in the analysis. Since the beam is not visible, a power meter can measure intensity, but identifying TE and TM modes requires careful manipulation of the optical components. Understanding the relationship between the polarization state and the optical elements is crucial for accurate detection. Safety precautions are essential when working with lasers to avoid eye damage.
nordmoon
Messages
65
Reaction score
0
I have an IR laser for which I want to find the TE (Transverse Electrical) vs. TM (Transverse Magnetical) mode.

I know that the laser has linear polarization, and is configured for a single longitudinal mode with transverse mode close to TEM00.

I have a polarizer (not exactly but nearby the wavelength of the laser) and a half-wave plate.
Since the laser is in IR its hard to see the beam with your eyes. I can use a power meter but how do I know when its TE and TM?

Any help would be very much appreciated.
 
Engineering news on Phys.org
Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
View full post »

Thread 'EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)'

Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
View full post »

Similar threads

What Are TE/TM Modes in Electromagnetic Waves?
Replies
4
Views
8K
A Waveguide Junction TM/TE combination
Replies
2
Views
1K
A Why are only TM waves allowed in this geometry? (Planar interface)
Replies
0
Views
955
Define the polarization in TE/TM modes
Replies
4
Views
17K
Definition of transmission & reflection in TE/TM
Replies
12
Views
6K
I How Does Rotating Polarization Work in Optics Experiments?
Replies
5
Views
2K
What is the Type of Laser Used in My Wine Raman Spectrometer?
Replies
7
Views
2K
TE / TM polarization of a Laser Diode
Replies
2
Views
11K
E-field polarization in the direction of propagation, TEM, TE, TM
Replies
5
Views
6K
Voltage Output in subtractor photocircuit
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top