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Questions related from Venkata Siva Gummaluri
I see that many papers based on film random lasers (like polymer films) show very low lasing threshold compared to colloidal random lasers (like rhodamine6G based ones). Is this true in every...
12 May 2017 1,096 3 View
I would like to know the typical fluence values for getting coherent feedback in random lasing experiments. My source is a 5 ns, 350 mJ max. energy and 10Hz rep. rate q-switched laser. Random...
07 April 2017 3,007 3 View
I'm taking the ratio of the CBS signal intensity to the diffuse background intensity for my CBS analysis and I find that the ratio (enhancement factor is around 1.4 to 1.6 and not 2 or above). I'm...
27 January 2017 6,855 2 View
I have a 120 ps pulsed laser with variable repetition rate from 0.5 Hz to 10 Hz. I am using this source to excite a sample and collect emission data using a fiber-optic spectrometer with...
18 December 2016 3,303 4 View
In the attached image, as shown, what if there is no polarizer at the input side (from unpolarized laser source) in CBS experiment? Is the output and analysis from this setup reliable?
31 March 2016 8,245 3 View
I have a LASER with following specs: Nd:YAG mode-locked 300 ps,10 Hz repetition rate, 30 mJ peak energy. What are the different properties of a material that can be studied using this laser?
04 February 2015 2,443 4 View
The particle sizes of interest to me are in 2 nm - 100 nm range. For TEM analysis, what are the Grid selection criteria (like Mesh, material, etc.) for this range of particle size ? Thank you
13 October 2014 6,187 5 View
