Computer simulations have shown that the method works. Now the idea should be confirmed in experiments. Stefan Rotter is confident that this will be successful: "We are already discussing with experimentalists how this could be done. As a first step, we may test this technology with sound instead of light waves. Experimentally, they are easier to handle, and from a mathematical point of view, the difference does not matter significantly.
Materials provided by Vienna University of Technology. Note: Content may be edited for style and length. Science News. Outwitting the Scattering of Light "Complex materials such as a sugar cube are opaque, because light waves inside them are scattered multiple times," says Professor Stefan Rotter TU Wien.
Wave propagation through disordered media without backscattering and intensity variations. ScienceDaily, 13 September Vienna University of Technology.
The beam of invisibility: A new cloaking technology has been developed. DS9 : " The Way of the Warrior ". The Dominion , as well as the Cardassians, also possessed many methods of breaking through cloaking fields, including a long-range tachyon scanner and an antiproton beam. DS9 : " The Search, Part I ", " Once More Unto the Breach " However, these methods were not always effective as Thomas Riker was able to partially counteract the antiproton beam scanning method by adjusting the cloak's resonance frequency.
DS9 : " Defiant ". The Dominion's array in the Argolis Cluster could detect cloaked ships up to two light years away and required approaching the array by navigating the cluster's Gravimetric shear and Gravimetric distortion. DS9 : " Behind the Lines ". The Tachyon scan , also known as a tachyon sweep or tachyon signal, was another method of detecting cloaked ships. Due to the enormous amount of power required to generate a cloaking field, there was, by and large, not enough power available to also power the weapons and shields.
DS9 : " The Search, Part I " However, there were several times when advances in cloaking technology rendered these tactical inefficiencies untrue. For example, in , the Klingons developed a prototype Bird-of-Prey capable of firing photon torpedoes when cloaked. Kirk in the assassination of Chancellor Gorkon.
Fortunately for galactic peace, the Enterprise -A was able to deduce the existence of Chang's ship and devise a way to penetrate its cloak by tracking its plasma exhaust with new sensors for analyzing gaseous anomalies. Using a Photon torpedo modified to home in on and target that plasma exhaust, the prototype ship was destroyed by the Enterprise -A and the USS Excelsior over Khitomer.
Another advanced cloak was encountered in The Reman warbird Scimitar employed a new type of "perfect" cloaking device that did not give off any tachyon emissions or residual antiprotons , making the Scimitar completely undetectable while cloaked. It allowed the ship to fire weapons and use shields while cloaked, as well as allow the ship to drop the cloak protecting certain quadrants of the ship without de-cloaking the entire ship at once.
The effectiveness of this technology was demonstrated when the Scimitar engaged the USS Enterprise -E , the Valdore , and another warbird in the Bassen Rift , where it was able to cripple both warbirds without suffering any significant damage. Only through repeated blind targeting, barrages of phasers and torpedoes, and the use of telepathic triangulation by Commander Deanna Troi , was the Enterprise -E able to overcome the Scimitar 's cloak. In addition, the mirror universe ISS Enterprise was able to fire weapons while cloaked using a Suliban cloaking device.
However, the cloak did appear to momentarily fail a few seconds after Enterprise launched torpedoes, perhaps indicating that the Imperial ship had insufficient power for simultaneous use of weapons and cloak. In an alternate future , Klingon attack cruisers apparently had the ability to fire while cloaked, as they were able to damage the USS Pasteur before decloaking.
The Treaty of Algeron did not stop Starfleet Intelligence from secretly and illegally developing the phasing cloaking device , a device which not only rendered a starship invisible, but also allowed it to pass through solid matter unimpeded. The device was lost in when the test bed vessel, the USS Pegasus , was presumed destroyed by a warp core breach in a mutiny by members of the crew concerned about the legality of the test.
In , the Pegasus was found not to have been destroyed and the existence of the illegal device was made public to the Romulans. TNG : " The Pegasus ". In the early s , the Klingon Empire experimented with interphase cloaking technology but the research was abandoned due to several accidents. In the Romulans also unsuccessfully experimented with interphase cloaking technology, developing an interphase generator combined with a molecular phase inverter.
The USS Enterprise -D had received a distress signal from the test bed vessel and Captain Picard ordered an away team sent over to assist. During the mission, due to a malfunction in the device, Ensign Ro Laren and Lieutenant Commander Geordi La Forge were phase-cloaked during beam-out and rematerialized on different parts of the Enterprise. After attempting to bring them back, the crew gave up, believing them dead. Eventually, Ro and La Forge succeeded in revealing what had happened to them to the crew and Lieutenant Commander Data managed to reverse the effects of the cloak, bringing them back into phase.
The use of cloaking devices occasionally led to unintended effects. The cloaking device of Aldea caused significant damage to the planet 's ionosphere and ozone layer , leading to increased radiation on the surface and sterility among the Aldeans.
In , chroniton particles generated by the Romulan cloaking device aboard the USS Defiant became lodged in the ship's ablative armor matrix. These particles interacted with the ship's transporter systems, resulting in the accidental transport of several officers backwards through time to early 21st century Earth.
In , a computer character manifesting itself as fear was offered a cloaking device as a means of keeping its program hidden from future intrusion. To the request, it replied " I already have a cloaking device, thank you anyway. VOY : " The Thaw ". In that episode's revised final draft script, the effect was described as "a nebulous, undefined shimmer.
There is a running discrepancy as to whether or not the mirror universe has cloaking devices. While they have been seen in early mirror episodes of DS9, the last "mirror" episode featured a plot revolving around the "fact" that the technology didn't exist in the mirror universe. There has been some controversy over the appearance of the cloaking device in Star Trek: Enterprise. Though "Balance of Terror" seems to make it reasonably clear that that was the first time such a device had been encountered, early Enterprise episodes skirted very close to violating this by referring to the invisibility technology seen in ENT : " Broken Bow " and " Unexpected " as stealth technology; presumably, this was intended to be a primitive precursor to cloaking, utilizing some method other than the selective bending of light.
Unfortunately, the episode " Shockwave " features several explicit references to the Suliban stealth technology as cloaking. Unfortunately, there is no obvious way to reconcile the discrepancies, except to force an interpretation of Spock's words " Invisibility is theoretically possible, Captain — with selective bending of light.
But the power cost is enormous. They may have solved that problem. Then again, Spock's notions regarding this particular matter may not represent the totality of Starfleet's expertise, as even he admits, in TOS : " The Devil in the Dark ", that he is not as qualified as Mr.
Scott is when it comes to engineering. Several staff writers on Star Trek: Enterprise — among them Producer Mike Sussman — believed it was a mistake to give cloaking technology to 22nd century Romulans. Season Four showrunner and Co-Executive Producer Manny Coto decided that Romulan ships would not have cloaks in any subsequent encounters. Information provided by Mike Sussman. According to Worlds of the Federation , the Romulans developed the first cloaking technology and traded it to the Klingons in exchange for warp drive technology — an exchange which both sides bitterly regretted in the following years, when they became deadly enemies.
These devices needed extensive reengineering and soon diverged after the breaking of the alliance. The source also says that the cloaking device works by generating a quantum phase bubble that teleports EM radiation to the other side of the cloaking field and that ships cannot normally fire when cloaked due to the field interfering with weapon accuracy with the risk that the weapons may even reflect back onto the firing ship. The Romulans preferred to experiment with phasing cloaks while the Klingons focused on firing while cloaked.
Several apocryphal sources, including Diane Duane 's novel The Romulan Way , also credit Romulans with the development of the first cloaking technology, and state that the Klingons acquired it in trade with the Romulans, during their tenuous alliance. The 22nd century Birds-of-Prey were only used as testbeds for early prototype cloaking-devices.
Azana says the cloak is dependent on knowing the exact colours need to be filtered out. However, one could theoretically program a cloaking device to ignore the full visible spectrum, effectively rendering an object invisible to the naked eye. The study demonstrated that a one-dimensional object can be rendered invisible.
The next step is to apply that same concept to two- and three-dimensional objects, Azana said. The findings were published in Optica , an open-access, peer-reviewed journal published by the Optical Society of America.
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