Coupling is very selective to the mode. Different modes corresponding to different frequencies/wavelength can be coupled and filtered. May SPR phenomenon be useful to get very narrow band filters....
Silicon Ring Resonators are used to demonstrate the notch filter in the Microwave regime.
Just check it out
Plasmonic Notch Filter Design Based on Long-range Surface Plasmon Excitation Along Metal Grating
Link: http://link.springer.com/article/10.1007%2Fs11468-008-9062-2
What is your ideal configuration? A wave guide filter? An aperture filter? Something else? Are you filtering surface waves, guided modes, a beam?
02 March 2021 7,082 3 View
I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...
01 March 2021 1,587 6 View
I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...
27 February 2021 4,703 1 View
Greetings to all of You! I have searched some research papers for the designing of a proximity coupled patch antenna. Researchers are talking about the impedance bandwidth of the antenna but...
24 February 2021 7,662 3 View
This insect is minute in size around 1 mm and not clearly visible with naked eye.
22 February 2021 5,907 11 View
Hi everyone, I would really appreciate it if someone can tell me when and why a raw fluorescence starts below zero. In the picture attached below the blue colour curve starts from a negative...
09 February 2021 4,642 3 View
I have synthesized LiMgF3 using the starting precursors LiF and MgF2 via solid state diffusion method. Now I am looking for some characterization to claim the desired product, as there is no...
09 February 2021 921 3 View
Hi everyone, I am looking for fluorescence expression vectors for expression in gram-positive bacteria present in the skin microbiome. I need to tag them with a fluorescence marker and observe...
06 February 2021 2,566 4 View
I've come across a couple of publicly available hyperspectral image datasets from the website http://www.ehu.eus/ccwintco/index.php/Hyperspectral_Remote_Sensing_Scenes Now, my concern is...
05 February 2021 3,550 1 View
Asking this as Google forms doesn't allow multiple items in a semantic differential format.
04 February 2021 5,869 4 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...
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We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...
25 February 2021 568 1 View
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I need to simulate the optical properties of a biomaterial, namely DNA, in COMSOL. Basically I need to simulate the IR absorption spectrum of a cylinder filled with a 'concentration' of DNA. I am...
21 February 2021 3,043 3 View
What is the reason of the received optical signal to be slimmed down in multi-mode fiber? I have 4 km multi-mode fiber
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31 January 2021 6,354 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,...
26 January 2021 8,666 4 View
Hello Dear Researchers, I am confused about the Difference between Second-harmonic generation and Two-photon absorption? Can anyone describe the two phenomena briefly in the physical picture? What...
24 January 2021 9,912 5 View
Respected Researchers Refer to the yellow highlighted text, Eq. 6, Fig. 1 and 2 of the attached publication, Please let me know how to control filter coefficient (a_n) mentioned in Eq. 6 with...
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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?
17 January 2021 2,335 7 View