Contact experts in Optics to get answers
1,417 views 788 posts
Questions related to Optics
We are a research group working in the field of laser processing. We want to build our own femtosecond (or picosecond laser) for micromachining (fine marking for example). Do your know any low...
24 December 2018 6,067 8 View
Suppose a highly intense laser beam of 10 kW is incident on a mirror and a lens. Which of the two can withstand the power without getting damaged.
18 November 2018 6,600 17 View
I am looking into buying an optical table for high-resolution confocal microscopy and patch-clamp electrophysiology, and I am wondering which brand to go for. The table should be around 1.2m x...
30 October 2018 10,000 9 View
I am looking for the thinnest possible infrared mirror. A thickness of about 100 micrometers would be ideal. Does anyone have an idea ? The coating should be on both sides and the mirror should be...
15 October 2018 1,638 5 View
An optical gyro rotating at very less velocity may generate an output signal in milliHertz range. Is it possible to detect such signals?
09 September 2018 8,849 3 View
Dear Researchers, How to define a collimating lens in TracePro Software? Thanks and Regards, Dhanu Chettri
06 September 2018 4,083 2 View
The emission wavelength of active part of laser cavity depends upon the bandgap of material, while the allowed oscillation frequencies of passive part depends upon cavity length. How these 2...
03 September 2018 808 4 View
If an optical signal of 1550 nm wavelength is incident on a pin photodiode, what will be the nature of its output photocurrent ?
19 August 2018 965 23 View
I am in the process of building a new setup and have a discussion with my colleague on the subject. We will measure several monolayers on a flat reflective surface inside a vacuum chamber with ~1...
09 August 2018 9,377 2 View
Hi all, I am considering options for thermal imaging in a well plate. I have seen infrared camera used in vivo but so far no papers in vitro with commercially available resources. Could anyone...
30 July 2018 9,787 3 View
A simple definition might help to understand the diffraction pattern in an aperiodic nano-micro structured surface.
20 July 2018 3,961 6 View
I am doing some measurements using an LG02 beam and I find that the inner diameter is decreasing with increasing beam energy. This has already been seen. This means that the valley of the LG beam...
15 July 2018 9,024 9 View
Did anyone observe the suppression of low fluorescence signals from one organelle due to high signals from other organelles?
02 June 2018 5,879 6 View
Can somebody explains how to collects the statics of number of citation per year on a specific keyword ? I want to know number of citations per year on "Metasurfaces." It is perhaps one of the...
31 May 2018 3,291 8 View
I need to measure the power density of a laser. What is the most appropriate equipment to measure the intensity of a laser beam?
11 April 2018 2,319 3 View
I'm trying match the phase between different links(all the links has same devices with same parameters). As i know i have to place an exact same length of the fiber between all the links to...
23 March 2018 9,951 2 View
During sliding wear in a ball on disc (BoD) configuration, given all conditions are identical i.e normal load, temperature, sliding speed and counterface material, only difference being the...
14 March 2018 4,074 10 View
There are many fields where light field can be utilized. For example it is utilized in microscopy [1] and for vision based robot control [2]. Which additional applications do you know? Thank you...
06 March 2018 2,476 3 View
Total internal reflection (TIR) is a key mechanism for many optical devices and mentioned in any optics course. But why is the reflection angle identical to the angle of incidence? Why isn't it...
19 February 2018 5,644 14 View
"Phonon energy" is typically used to describe the resonance energy of lattice vibrations. As the host phonon energy decreases , we need more number of phonons to bridge the energy gap between...
16 February 2018 1,375 4 View
I got the data, but do not understand how to use it?
12 February 2018 7,011 6 View
Dear colleagues, Without nonlinear absorption, the Z-scan curve corresponding to the pure nonlinear refraction will be symmetric around the origin O. The nonlinear absorption will lead to...
07 February 2018 4,324 10 View
Is there any open source alternative to Rsoft's Optsim, Optiwave's Optisystem and other commercial softwares?
06 February 2018 9,697 1 View
Dear colleagues, The Z-scan technique is proposed by Sheik-Bahae et al [1]. Theoretically, when there is no nonlinear absorption, the Z-scan curve must be symmetric around the origin of the...
03 February 2018 3,226 4 View