Transparent Definition and 122 Threads

Transparent materials such as glass can let visible light pass through nearly undisturbed. I don't understand how photons just pass through atoms in that material. I can understand the concept of atoms not absorbing the photons in that specific wavelengths, but how can photons avoid deflection...

What the scientific explanation of the phenomenon that when you put water on white matirials such as paper or cloth they become partially transparent?

Looking to build a bike frame that is made of transparent material. Must be able to safely hold up a rider like typical steel frames. Any suggestions?

I don't actually find this probable, it was merely the most concise way of phrasing my concern. In the linked description of the mechanism of transparency (), it is stated that opaque objects do not allow light to pass because the incident light is absorbed (as photons, naturally) in the...

I know the question is simple but why is glass transparent and what's in the material to adds up to those elements and all the physics behind it.

A mica window is used on Geiger counters. The thin mica is supposedly very transparent to alphas. But are there other materials? Extremely thin metal foils?

Hi all, I want to get some sort of polymer that is opaque to infrared (absorbs wavelengths above 700 nm very well) but transparent to visible light (does not absorb much light below 700 nm). Does this even exist without being a meta material?

Difference between transparent and black object?I mean black object is black because 1-it absorbs all the wavelengths of light OR 2-because it doesn't reflect any wavelength of light If first one is the reason then alright but if second one then transparent object should also be black as it does...

I know that the refractive index is determined by a material's dielectric constant and magnetic permeability. It's also true that we can treat the refractive index as a complex function with the imaginary part giving you an absorption spectrum. You can then get the index of refraction from...

Dear All, If two layers of thickness d1 and d2 stacked on each other and having their absolute refractive index n1 and n2 . Can we find effective refractive index of the combination with this data? Thanks in advance. Jayesh.

Hello! First post here, so hopefully I'm not doing anything wrong. I've hit a dead end with an experiment and could use some additional perspective. I'm in need of material for a 100 mL round boiling flask that has good transparency down to about 140 -180 nm. I originally considered Type 214...

Dear All, I have read many posts on this forums about the interaction of photons with the atoms of transparent materials. The point that I was searching for in particular was "why is the speed of light in transparent material less than c". The explanations given by many about the absorption...

Hello Guys! I have been studying electromagnetic waves (EMW) interaction with matter lately and I just derived the results for the propagation of EMW inside linear media and perfect conductors. As it turns out, when a plane EMW changes medium (at a normal incidence) from air to (good)...

If I am using radar to determine the distance of an object from my transmission source by reflecting my radio waves off of the surface of the object and recording the time at which they return and, I want to encase my detector to protect it from the elements, how do I select the material with...

Hi, recently I saw a great video about some scientists levitating small objects in mid air by trapping them in overlapping 180 degrees out of phase sine waveforms. It is easy to see that air is the medium through which sound can travel and sounditself being the vibration of air traps these...

Hello, I am a cycle enthusiast looking to create a shield for my bike in the form of a rain drop which is known to be the most aerodynamic shape. I am looking for a material that is TRANSPARENT (clear, one way mirror finish, or black), STRONG, DURABLE, FOLDABLE, EASY TO MOLD & SHAPE...

and if they are, to what extent?

I’m currently working a project to produce a roadside speed camera which displays vehicle speed to drivers to improve speed awareness. A Doppler radar gun operating at 24.1GHz (1.24cm) is being used as the source and detector. There is a weather tight plastic box (opaque, at least to visible...

Hi, I am in high school and would like to understand space. a.) What is space? Is it physical? Is it transparent in nature basically? b.) Does space weight anything? c.) What is outside of space? Anything at all? Thank you very much.

Hi everyone, I need a coating material for an moving object. The coating surface slide over another surface. The coating needs to be transparent to allow optics tracking, and flexible like paper because inner object is flexible, and it needs to be wear resistant to keep the transparent...

I need help exploring this question: what makes a solid transparent/opaque? If I have clear sheet of plastic and I introduce imperfections (such as small air bubbles inside), it turns white if the # of imperfections is large. Is it possible to maintain the polymer transparent with such air...

I am not able to understand why is glass transparent because the same amount of atoms are still present and even if they are not able to arrange themselves in a proper crystalline structure then to there will some places where their would be less gap and some places where there is more gap for...

Hi All, I'm wondering if anyone is aware of a piezoelectric material that is both liquid and is transparent/colorless/ lower refractive index? Is there database online where I could compare these values? Google has not been kind to me:( Any help would be so appreciated.

Optics -- Refraction and a transparent sphere Homework Statement A spider is hanging by means of its own silk thread directly above a transparent fixed sphere of radius R=20 cm as shown in the figure. The refractive index of the material of the sphere is equal to ##\sqrt{2}## and the height...

Hi! My friends and I have been working on a project which encapsulates the use of semi porous transparent membranes that can selectively pass glucose molecules through them in one direction. Does such a membrane already exist? Where can I get literature on the construction and/or existence of...

hi All, I got to thinking recently about diffraction; through an opaque slit for example, causes a normal diffraction pattern which is well described in texts. However, what happens when you have slit transparent to the light which is going through it. Obviously, the light passes through the...

Homework Statement Hello everyone, I've been struggling to understand the relationship between two algebraic forms of the scattering function used in the Mie solution for light scattered by (transparent) spheres. I think there's some use being made of Legendre function identities, but I've...

Hello ... Please , I want a transparent paint for a glass or plastic that carrier of electrical current. If it is existing in market ( what is the brand name) or there is a way to be manufactured by local materials available. Another question ... Is there a dry metal compound (powder)...

Ok thanks for the responses to my other question; I think I now have it. I have a follow up question – that is almost on the same topic (but not quite) The complete spectrum (arund 200nm to 380nm) of UV light is absorbed by some plastics?? Elections will be moved to a more energetic orbital...

Hey! I just saw a video on youtube from the guys at nothingham university (sixty symbols) where they explained that some materials are transparent due to the energy gap between the excited states of the electrons in the material. If photons come in at lower energies they will not interact with...

Hi, The textbook I am using does not clearly explain why certain objects reflect certain frequencies of color. If the frequency of light matches the frequency of the opaque object it is shined upon, will it be absorbed or reflected? I'm thinking that it may be absorbed for the same reason...

wave-function is a hypothetical/mathematical construct the wave-function is said to collapse when we try to detect it, say in a double slit or mach-zehnder. what kind of obstacles (but non-detectors) do wave-functions pass through? what happens if we place a razor thin obstacle (that is...

Hi. I am working on visualization of flow with thermal infrared camera. As it is known, water is not transparent for IR spectrum of light, so you can`t watch phenomena that are occurring "inside". You can only see things that are occurring on the interface of water and wall. I have been...

Didnt einstein show that the work function depends on frequency not intensity? If so, than why does the Wysips cell use a magnifying array? Sorry i don't have a pic, but a diagram of the solar cell may be found using google images.

Many materials, such as paper and cloth, are transparent when wet. Of course I understand that water is transparent, but why does a non-transparent material become transparent when something is _added_ to it? If there is some material that blocks the path of the photons, how does adding yet...

Hello All, I'm not really sure if this is the spot where I should post this, but I'll give it a shot. For the last 2 yrs. I've been working on improving the current generation of Augmented Reality glasses (transparent display or "see-through" display glasses). The main reason you only see...

I have noticed in the past that light travels through water relatively undisturbed (I have noticed that there seems to be some small amount of light reflected, but most seems to pass directly through). How does this happen, in terms of photons encountering particles? I once thought that...

I am walking at 2 metre/sec and light, from a flashlight behind me, is moving at 1 m/s. So my eyeballs are catching up with the photons ahead of me. Do I see the flashlight? Do backward photons look strange? Are they red-shifted, blue-shifted? Assume my optics have been replaced with...

I'm trying to create(or buy) a transparent touch screen. I realize this is a difficult task, through all of my research. I have found http://solutions.3m.com/wps/portal/3M/en_US/TouchSystems/TouchScreen/Solutions/TouchScreens/MicroTouchSCT3250EX/" to be the best transparent touch pad. Now I...

I'm looking for a way to add eps images with a transparent background to a pdf generated by texniccenter (Windows environment). Can this be done?

Hi all, For a while now I have been searching for an electrically conductive material which is also UV transparent. Anyone here has come across such a material (solid or liquid) ? Thanks :)

Hello, Is there such a thing as a projection screen that is transparent to IR? I need to project an image onto a screen (rear-projection), but I also need to send an IR signal through the screen from the side of the human user back to the side with the projector. I think there are...

I have always thought glass was reflective because all visible light falling upon it was absorbed, and only very little was reflected and able to make contact with our retinas, to little to be noticed, therefore making it transparent. I believe the opposite happens to mirrors, most of the...

Bit of a silly question I know, but I have never been able to get answer which I'm happy with. I thought it might be due to the energy levels available to the electrons in the glass. Light is able to pass through the material, because the photons in the visible part of the spectrum don't have a...

Homework Statement A thin layer of a transparent material with an index of refraction of 1.27 is used a nonreflective coating on the surface of glass with index of refraction of 1.51. What should the thickness of the material be for it to be nonreflecting for light of wavelength 510nm...

hello my question is why glass is transparent why the photon are traveling in it without being absorb use equation & explanation , please this Q? for high level Physicist not for anyone so pleas if you can't use proper equations DONT REPLY and why its path are so specific and strait ?

I'm in a bit of a dilemma, I'm not sure whether or not loudspeaker diaphragms are acoustically transparent or the degree to which it effects their motion. A few ideas, Below the fundamental mode of the enclosure, the air behaves with a single phase. The acoustic forces (and their effects...

This one has also puzzled me for quite some time. How come that glass, water and diamonds for instance are transparent while for example graphite is not? Furthermore, since the light travels at lower speed in glass and in water than it does in vacuum, it must mean that the photons interact...

very cool. & it isn't even the 23rd century yet. i can't even find the part of the abstract where they say they turned it transparent though :-p (i guess it's the 3rd sentence?) http://www.nature.com/nphys/journal/vaop/ncurrent/abs/nphys1341.html...

How can you see raindrops if water is transparent?