15AUG 2017
Laser diffraction grating experiment

Laser diffraction grating experiment

Light propagates, or travels, in waves. Waves have two main properties: frequency and wavelength . When you know one, it’s pretty easy to calculate the other. When light waves overlap they create interference, and the patterns caused by this can be used to determine the wavelength of light. Conduct this cool diffraction grating experiment to determine the wavelength of laser light…

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07AUG 2017
Plasma lasers

Plasma lasers

Science fiction has promised us three-dimensional midair displays since at least the first Star Wars movie. We’ve seen a few holographic technologies that have come close; they rely on optical tricks of one sort or another to make it seem like you’re seeing an image hovering in front of you. There’s…

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30JUL 2017
David Bohm hologram

David Bohm hologram

Introductory Quotes It is proposed that the widespread and pervasive distinctions between people (race, nation, family, profession, etc., etc.) which are now preventing mankind from working together for the common good, and indeed, even for survival, have one of the key factors of their origin in a kind of thought that treats things as inherently divided, disconnected, and broken…

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22JUL 2017
Christmas hologram projector

Christmas hologram projector

Two Trees Photonics is delighted to announce that the first product utilising its revolutionary phase only holographic display technology is now being introduced to the market in the form of an automotive laser head-up display available on the Range Rover Evoque. A recent press release by Jaguar Land Rover announced:- Range Rover Evoque is now available with an advanced integrated…

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14JUL 2017
Diffraction grating experiment to find wavelength

Diffraction grating experiment to find wavelength

A simple and elegant experiment to measure the wavelength of light using a fine diffraction grating. Apparatus and materials Fine diffraction grating (about 300 lines/mm) Metre rules, 2 Lamp in holder, 12V 36W Green filter Power supply, low voltage, variable, able to supply 6A Health & Safety and Technical notes Each student pair will need fine diffraction grating, and 2…

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06JUL 2017
Holographic Poster

Holographic Poster

It’s Easy Upload 2 Photos Add Text Place Your Order! It’s Easy! Create personalized lenticular photo flip posters in minutes without software. Apply colored text to your designs. Order one or as many as you would like. Flip lenticular posters are perfect for displaying “then and now” pictures at birthdays, weddings and anniversaries. Professionals can use them to demonstrate “before…

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28JUN 2017
Holographic recording

Holographic recording

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution. Contact your librarian or system administrator or Cited By You do not have subscription access to this journal. Cited by links are available to subscribers only…

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20JUN 2017
Holograms

Holograms

With the proliferation of digital signage and tablet devices over the past 5 years today’s Tradeshow and Marketing Manager face the daunting challenge of finding an integrated solution that achieves their marketing needs, while managing continual and sharp decreases in event budget allocations. Read More Tags: Zebra Imaging, 3D Holograms, Holograms, tradeshows Craig Newswanger dreams…

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12JUN 2017
Diffraction Equations

Diffraction Equations

Diffraction Is light s response to having something mess with its path, so diffraction occurs only when something blocks part of the wavefront. Diffraction is the phenomenon where light bends around an obstacle (this bending is not due to refraction, because the material doesn t change as refraction requires). The following equations cover the most common situations involving diffraction…

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04JUN 2017
Hologram concert technology

Hologram concert technology

It was [Dr.] Dre s vision to bring this back to life,says Nick Smith president of the company that projected the Tupac hologram at Coachella. The Coachella festival is a place where minds routinely get blown, usually due to an awesome set or a killer reunion from one of your favorite bands. But on Sunday night it was thanks to the ghostly re-appearance of West Coast rap legend…

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27MAY 2017
Hologram background

Hologram background

Background estimation and elimination is an indispensable step of hologram processing. Its application ensures that the fix pattern noise caused by the deposits, dirt and other impurities of the measuring chamber and the optical system do not contaminate the reconstructed holograms and improves the efficiency of the object segmentation. It is conventionally solved by averaging large…

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19MAY 2017
Smartphones 2015

Smartphones 2015

Farewell Firefox OS smartphones. Mozilla today announced an end to its smartphone experiment, and said that it would stop developing and selling Firefox OS smartphones. It will continue to experiment on how it might work on other connected devices and Internet of Things networks. The announcement was made earlier today at Mozilla’s developer event in Orlando, “Mozlando“, and several…

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11MAY 2017
Glass grating

Glass grating

An integrated optical sensor specifically sensitive to ozone has been developed by vacuum evaporating a tapered thin film of copper tetra--butylphthalocyanine (CuPct) through a mask onto a slab waveguide made by K+–Na+ ion-exchange in glass. A pair of photoresist gratings fabricated on the waveguide offer the sensor a good long-term stability in optical coupling. The evaporated…

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