Beam emergence from cylindrical lens

AI Thread Summary
When a laser beam passes through a cylindrical lens, it is focused along one axis while remaining collimated along the perpendicular axis. At the focal plane, the beam will appear as a line rather than a point, demonstrating the lens's ability to focus light in one dimension. The cylindrical lens alters the beam's shape due to its curvature, which can be challenging to grasp for those unfamiliar with optics. Understanding the basic physics involves recognizing how cylindrical lenses manipulate light differently compared to spherical lenses. Clarifying these concepts can enhance comprehension of light behavior in optical systems.
0207
Messages
24
Reaction score
0
if a cylindrical lens is put in the path of a laser beam what is expected to be seen at its focal plane? how will the beam look like after emerging from it?
 
Science news on Phys.org
What do you think will happen?
 
I am not at all convinced about focusing along one axis .. trying really hard 2 comprehend, but the concept of a cylindrical lens is not sinking in. I am having tough time understanding the BASIC physics behind it. Consider me to be the most dumb student and help me over this.
tnx
 
Thread 'A quartet of epi-illumination methods'

Thread 'A quartet of epi-illumination methods'

Well, it took almost 20 years (!!!), but I finally obtained a set of epi-phase microscope objectives (Zeiss). The principles of epi-phase contrast is nearly identical to transillumination phase contrast, but the phase ring is a 1/8 wave retarder rather than a 1/4 wave retarder (because with epi-illumination, the light passes through the ring twice). This method was popular only for a very short period of time before epi-DIC (differential interference contrast) became widely available. So...
View full post »

Thread 'Effective absorption coefficient of gold nanoparticles'

I am currently undertaking a research internship where I am modelling the heating of silicon wafers with a 515 nm femtosecond laser. In order to increase the absorption of the laser into the oxide layer on top of the wafer it was suggested we use gold nanoparticles. I was tasked with modelling the optical properties of a 5nm gold nanoparticle, in particular the absorption cross section, using COMSOL Multiphysics. My model seems to be getting correct values for the absorption coefficient and...
View full post »

Similar threads

I What happens if I place light sources on the plane perpendicular to the principle axis of cylindrical lens?
Replies
1
Views
2K
I Prism Spectrometer Objective: Optics Question
Replies
9
Views
2K
Can you make a more focused beam by using convex and concave lens?
Replies
1
Views
1K
B The principle of operation and application of optical lenses
Replies
14
Views
1K
I Tilted plane wave through a 2 lens system
Replies
5
Views
2K
Diffraction pattern due to a lens with focal length f
Replies
2
Views
1K
I Laser beam enlargement
Replies
2
Views
898
B Wavelength of a laser beam emerging from a prism
Replies
1
Views
1K
I How Can I Build an Effective DIY Helmet-Mounted HUD?
Replies
19
Views
3K
I How to couple light from a very small source into spectrometer?
Replies
10
Views
1K

Hot Threads

Recent Insights

Back
Top