How we can prove that the irradiance of frequency doubled beam varies with theta when phase matching condition in uniaxial crystals is not obeyed?

Aydin Ashrafi-Belgabad @Aydin-Ashrafi-Belgabad

14 July 2017 1 9K Report

Hello everyone.

there are different type of relationship to calculate the phase matching angle, I bring two of them in attached, which I can derive the second one. and we found that the first phrase (phase matching condition ) is not true. I need to derive the irradiance of frequency doubled beam varies with theta when phase matching condition is not obeyed (the yellow part marked in the picture).

I will be grateful to anyone can help me.

Best regards,

Aydin Ashrafi-Belgabad

fortunately i found the answer.

I am attached the answer below.

Badges
Science topic

More Aydin Ashrafi-Belgabad's questions See All

Is there an artificial intelligence program used in radiological diagnosis? It may be a commercial product?

I am researching a software program such as OpenFace, which is used for facial recognition.

10 January 2024 5,886 6 View

How long after can I do DNase treatment in by phenol-chloroform extraction method isolated RNAs?

For RNA isolation, I use the phenol-chloroform extraction method. To avoid DNA contamination I've used the DNaseI enzyme. But I'm not sure how long after I can do the DNase treatment. Should I do...

06 January 2024 5,462 3 View

What is the reason for the decrease in Raman peak intensities despite the increase in XRD peak intensities?

In my study, all films were grown on the stibnite (polycrystalline) structure of Sb2S3. When I changed a parameter of a group of films, I observed that XRD peak intensities increased, while Raman...

29 December 2023 5,492 5 View

Should control and experimental groups be exact the same size in small sample studies?

I am conducting a study testing the effectiveness of a kind of group psychotherapy. There are 10 participants in my experimental group and 14 participants in my control group. At first, I planned...

03 December 2023 9,062 9 View

What could be the key agent (solvent) that guarantees optimal blending of essential oil in water?

What could be the key agent that guarantees optimal blending of essential oil in water? This agent should not harm living tissue or have only a minimal impact. I would be happy to receive...

15 November 2023 4,648 2 View

Do you know any seed banks or companies that provide some Linola seeds?

In Applied Research Center, we have done research on some different genotypes of Linum usitatissimum and their characteristics in some different areas in the north of Iran. Now, we need some seeds...

06 November 2023 6,919 4 View

Choosing a statistical test when we have ctegorical moderating.V and two separta group and categorical IV?

In the research, if the independent variable is categorical and the moderating variable is categorical, while the dependent variable is two separate groups. What kind of statistical test should be...

28 October 2023 4,012 2 View

What is the difference between crystallite size and grain size?

Can crystallite size and grain size be used interchangeably? Could you please recommend a resource on this topic?

13 June 2023 3,954 36 View

Could you please guide me to troubleshoot this error on MrBayes?

This error has occurred: Logging screen output to file "Trichoderma.3genes" Exiting mrbayes block Reading mrbayes block Setting outgroup to taxon "AH123_Fusarium_oxysporum_Root"...

20 May 2023 9,992 1 View

Why are white spots appearing on gel zymography, post-Commassie staining and destaining?

I have been running gel zymography (7.5% polyacrylamide co-polymerized with 1% gelatin) loaded with 250 µg of protein / well from colonic lysate with the hopes of visualizing MMP-2 and -9. I had a...

20 April 2023 8,223 5 View

Problems about acousto-optic coupling in Comsol, how to check whether the moving mesh is correct?

I’m trying to reproduce the acousto-optic coupling simulation in the paper Frequency–angular resolving LiDAR using chip-scale acousto-optic beam steering. LNOI(lithium niobate on insulator) is...

13 August 2024 9,795 0 View

Which Scopus Journal provides the most affordable fees?

"PUBLISHING IN A SCOPUS JOURNAL" Researchers are now at a cross road. The critical need to publish in a Scopus or ISI, etc journal is ever vital. Journal Publication fees must be submitted....

10 August 2024 8,621 1 View

Seeking Advice on Viability and Execution of Undergraduate Thesis Topic?

Hello everyone, I am currently developing a thesis proposal and would appreciate your input on its viability and how to effectively carry it out. My proposed topic is: "Does the perceived threat...

10 August 2024 8,992 0 View

Who will be moral responsible for the death of thousands of people in the event of an earthquake?

Who will bear moral responsibility for the deaths of thousands of people in the event of an earthquake? Weeks and months remain before the onset of strong earthquakes that bring death to...

08 August 2024 6,134 12 View

Are there any instruments for studying time similar to the way it is in space?

There are a huge number of methods for studying objects in space, according to the senses (and not only). Mechanical, thermal, optical, acoustic, electrical, magnetic, based on particle beams,...

06 August 2024 7,102 0 View

How to understand this crystallographic phenomenon of low temperature crystals in zeolite?

During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...

06 August 2024 726 3 View

Why might the impedance values for DI water and 0.1X PBS buffer solution exhibit a decreasing and increasing trend, respectively over time (HP 4194A)?

Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...

05 August 2024 3,783 2 View

In the case of a wound l recurrence after radical breast cancer and sentinel lymph node biopsy. Are the sentinel lymph node procedure recommended?

In the case of a wound l recurrence after radical breast cancer and sentinel lymph node biopsy. Are the sentinel lymph node procedure recommended? If no axillary lymph node dissection was not...

05 August 2024 8,056 1 View

Regarding a model for simulating battery charge and discharge, what do you consider to be high fidelity?

Regarding a model for simulating battery charge and discharge, what do you consider to be high fidelity? What is the acceptable percentage of error (regardless of the metric)? Could you suggest...

03 August 2024 5,358 0 View

Interested in a SCOPUS collaboration?

Hi RG family. My team and I are working on some SCOPUS publications and we need co-authors who are willing and capable of undertaking both qualitative and quantitative-based studies. The scope...

02 August 2024 7,843 0 View