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What caused the swirl like laser spot?

Hello friends, We've been adjusting a laser collimating light path, and we found an interesting phenomenon. We move the collimator along the light axis, we can get a clear and round spot, and...

04 January 2024 5,852 1 View

DMD based maskless lithography aerial image intensity distribution measurement?

Hello everyone I've been working on the improvement of the DMD based maskless lithography. I read somewhere else that in the UV/DUV lithography industry, in order to measure the aerial image...

30 November 2023 7,894 0 View

When using photoresist as a mask to etch a metal thin film layer by RIE, how to determine if the etching has been completed?

In the process of using patterned photoresist as a mask and RIE to etch metal thin film layers, there are often problems with incomplete etching or over etching resulting in pattern disappearance

07 November 2023 3,170 2 View

How to evenly spin coat photoresist on a small sample of 3x3x1mm?

If direct spin coating can result in thick and wide range of edge beads, how can processing or other spin coating methods be used to avoid the appearance of large range of edge beads?

24 October 2023 5,779 6 View

The NA of the rectangular beam when the Kohler integrator is involved?

Hello friends, I'm working on the partial coherence calculation of a micro lens array(MLA) based system, and first I need to know the NA of the rectangular beam. Conventionally, the beam is a...

12 September 2023 8,379 6 View

How to use SRIM for ion implantation for single crystal diamond（100） targets?

what are the Display Energy, Surface Binding Energy, and Lattice Binding Energy settings for single crystal diamond(100) targets during SRIM simulation？

16 August 2023 8,587 0 View

Can a shack-hartmann wavefront sensor measure a doube-telecentric lens?

Hello guys, As far as I know, a shack-hartmann wavefront sensor can measure some optical systems, can it measure a doube-telecentric lens?

08 June 2023 7,202 2 View

Image aberration balance with unknown lens design data?

Hello everyone, I’ve been racking my brain to try to figure out the image aberration balance method with unknown lens design data method, the optical sketch is shown below,the camera is put at...

25 November 2022 8,477 1 View

Fiber max coupling efficiency?

Hello everyone, I'd like to design a device which brings the natural sun light into the plastic optical fiber, does anyone know in which way it can have the max coupling efficiency, ball...

06 January 2022 3,521 3 View

How to design the LED illumination?

I turned on an LED and found the chip architecture was imaged onto the wall. this could lead a big trouble when I wanted to use this LED, but I couldn't know this via reading the spec. did anyone...

01 December 2021 1,230 8 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

Can anyone provide me with molecular docking softwares/ websites?

Molecular docking software/ websites?

02 August 2024 8,704 7 View

I am working on my Master's thesis on the biogeography of the genus Ruagea and I would like to ask, could someone help me to check whether my result?

I created a file with my outgroup and ingroup species using Beauti, ran it in BEAST, viewed it in Tracer, and then used TreeAnnotator to create a file that I imported into RASP. Could someone...

28 July 2024 2,979 1 View

Which software tools are best for enhancing diagnostic accuracy in chest X-ray imaging using image reconstruction and neural networks?

I am reaching out to seek your valuable advice and recommendations regarding the best software tools to use for this research. Specifically, I am looking for software with a user-friendly...

22 July 2024 3,794 1 View

How to test multivariate outlier in STATA?

Hey all, I need help testing for multivariate outliers using STATA for my master thesis. The literature recommends the Minimum Covariance Determinant (MCD) (Verardi & Dehon, 2010). I found the...

22 July 2024 8,821 2 View

MDCI module in Orca software?

Dear Researchers, My question is associated with the "MDCI" method in Orca. Please let me clarify my question using a simple example: Suppose we are going to perform CBS extrapolation using "!...

21 July 2024 1,632 0 View

What is wrong with my input file?

im studing gaussian 16 with reading paper about I-131 Metaiodobenzylguanidine in the paper "In a similar vein, nuclear magnetic resonance shielding values were investigated using the widely...

16 July 2024 6,040 4 View

Figure plot in scientific articles?

Hi all, Do you know how to plot this figure? I found many of them in Nature journals but have not figured out how to make them. Which software/tool do you suggest? Thank you very much.

15 July 2024 8,384 2 View

How can novel network architectures, such as software-defined networking (SDN) and network function virtualization (NFV), in Handover?

How can novel network architectures, such as software-defined networking (SDN) and network function virtualization (NFV), contribute to improved handover performance and reduced latency in future...

12 July 2024 6,183 1 View

Will SDN/NFV improve handover performance and latency?

12 July 2024 394 2 View