Hello, you said this is LIBS and we know the Laser Induced Breakdown Spectroscopy (LIBS) has been around for many years and is a technique used primarily in laboratory equipment. With recent advances in technology the technique has now been developed into a portable handheld analyzer capable of measuring carbon in the field for material identification and grading of materials. so i have one in my office but unfortunately I used it for Carbon steel material but no percentage of carbon where been displayed the question is Why
Thanku for your nice explanation. I have two questions, first one is that, how we can decide the laser which we are shooting can generate plasma or not and second question is that what is the threshold temperature needed to generate plasma?
The laser and combined optics need to be such that they are able to concentrate the light on a area with high enough energy density, this depends on both the laser and the optics. You could have a high energy laser without much concentration or none through optics, or a relatively low power laser with more complicated optics. The threshold depends on the material, and it might be more useful to think about the laser fluence (energy/area), not temperature itself. The fluence necessary for inducing plasma is material dependent.
somehow good explanation of the term LIBS. Thankyou very much.
Thank you for this great explanation. The visuals helped me a lot!
Hello,
you said this is LIBS and we know the Laser Induced Breakdown Spectroscopy (LIBS) has been around for many years and is a technique used primarily in laboratory equipment. With recent advances in technology the technique has now been developed into a portable handheld analyzer capable of measuring carbon in the field for material identification and grading of materials. so i have one in my office but unfortunately I used it for Carbon steel material but no percentage of carbon where been displayed the question is Why
did you get the reply ?
Muchas gracias por la explicacion
Nice explaination
great explanation
TAKE THAT LIBS!
Thanku for your nice explanation. I have two questions, first one is that, how we can decide the laser which we are shooting can generate plasma or not and second question is that what is the threshold temperature needed to generate plasma?
The laser and combined optics need to be such that they are able to concentrate the light on a area with high enough energy density, this depends on both the laser and the optics. You could have a high energy laser without much concentration or none through optics, or a relatively low power laser with more complicated optics.
The threshold depends on the material, and it might be more useful to think about the laser fluence (energy/area), not temperature itself. The fluence necessary for inducing plasma is material dependent.
Why we use polarizer in LIBS technique study?