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Questions related to Optics
This is my new area of research who can help with video tutorials on the material geometry, layers, material sweep, wave equation, absorbance etc.
25 July 2023 203 0 View
At present a large number of mirrors are placed around the receiver and concentrate all of them on the receiver.why can't we use convex lens to concentrate sunlight
15 July 2023 1,395 1 View
Hi, I diluted a nanocomposite solution with D5x to measure its UV-Vis absorbance. What I did was just simply times 5 with the UV-Vis absorbance results I have and assume this is the full...
19 June 2023 5,313 1 View
Can anyone have any idea which Tauc plot I used for my work actually I plotted the Graphene oxide Tauc plot for different values of transition but in all the cases I got a plot with different...
14 May 2023 7,292 1 View
Several articles suggest, in a MOPA configuration high power fiber laser, the SRS can be mitigated by increasing the bandwidth of the OC FBG. How to determine the optimized bandwidth of such FBG?...
10 April 2023 3,020 3 View
Hi, When I tried to S2 Resampling using SNAP 9.0.0, I get an error and the processing fails. I kept all parameters default. Error as follows, A problem occurred during the target product...
15 February 2023 1,952 1 View
Could you explain briefly, what is the use of the effective mass approximation in semiconductor quantum dots ?
11 January 2023 1,883 2 View
If we operate with Raman laser well above threshold, for example, about 10 times, then the increase of laser efficiency due to double-pass pumping should be minimum in comparison with a...
11 November 2022 7,438 1 View
Dear all! I am testing a new type of reactor where 2 liquids and a gas are made to interact together with a thorough and rapid mixing, but I am more fluid dynamic specialist than chemist and I...
12 October 2022 5,228 4 View
How can use the multiple launch fields by using the Rsoft Fullwave and MOSTMultiVarFormat. Namely, how can I design the name of the second launch field? Optionally, the name of launch file is the...
23 September 2022 585 0 View
Dear all, I am building and aligning mech Zehnder type f-2f interferometer for CEP signal detection. I have a few questions regarding this setup if someone could advise or comment? so, I have a...
10 August 2022 8,645 7 View
Hello, I’m making some measurements sensitive to numerical aperture (NA), using Nikon 60X water immersion objective with NA 1, WD (working distance) 2.0. To verify the NA for my sources of light,...
14 July 2021 2,814 21 View
I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...
01 March 2021 5,134 3 View
If The Laser head is parallel to the machine axis, the cosine error will be zero(θ=0). If the laser head tilted means the theta value will be some angle. My question is how to measure that...
26 February 2021 2,240 3 View
In remote sensing field, passive sensors are used to measure emitted radiation which is converted to temperature via the Placks Law of black body radiation. In natural conditions the reflected...
04 February 2021 4,380 2 View
When first order paraxial optics is expanded to third order optics (i.e. sin x~ x-x3/3! instead of sin x~x) , these 5 optical aberrations result in. What is the rigorous mathematical proof that,...
27 January 2021 8,862 4 View
Dear researchers It's well-known that the maximum light absorption of any structure can not be greater than 50%. Is it possible that the single-pass absorption exceeds 50%? How?
18 January 2021 2,556 7 View
Dear colleagues, We have observed large fluctuations in laser power in our setup and traced them down to fluctuations in laser beam polarisation. Attached is a schematic of the relevant part of...
15 January 2021 7,701 4 View
At the Monte Carlo casino, I saw an unusual advertising image. It rotated around a vertical axis and seemed suspended in the air; there was no screen behind it. The image was bright and colorful....
04 January 2021 9,254 5 View
Good day everyone currently I'm using Rsoft CAD as simulation tool for a Y-splitter, and I have a case when the launch field TE1 and the patway monitors the launch power, byeond the split point,...
29 December 2020 2,070 1 View
Hello everyone. For my experiment, I have a need of moving a ~20 mg optical element (prism) at frequencies of ~2 MHz with amplitudes of ~0.5 μm. I couldn't find any proper device which can fit...
08 November 2020 7,053 4 View
Sorry for the naivety of my question. I am looking forward to estimating the maximum power capacity of an optical waveguide, typically, Silicon (Si) or Silicon Nitride (SiN) waveguide. Is there...
20 October 2020 5,064 5 View
I am using following laser for microscopy. https://www.picotronic.de/picopage/en/product/detail/id/672 Although it is already low power pointer laser I still need to reduce its intensity. I...
14 July 2020 4,808 18 View
I want to place 2 camera lenses (eg Thorlabs MVL12M23 and MVL50M1) inside the inner vacuum can of an Oxford Kelvinox MX250 dilution cryostat. The camera lenses will be thermally connected to the...
19 June 2020 6,184 1 View