Month: September 2022

EVENT CLOAKING MECHANISM. Light is manipulated as it enters the material, so that the leading half speeds up and arrives before an event, while the trailing half lags and arrives later. Thus, the event escapes illumination briefly, and quickly seamlessly closes after the event is concealed. https://lnkd.in/epsXTGi View in LinkedIn

AIRPLANE WINGS force air into a longer and a shorter stream, creating lift. This is analogous to the treatment of light in the space-time cloak. https://lnkd.in/eY2SZwt View in LinkedIn

TIME-DEPENDENT METAMATERIALS. "The name time dependent metamaterials automatically implies change. Unlike time independent metamaterials the structure of these materials varies with time either naturally, meaning without direct intervention,or when exposed to either external fields, currents or forces." https://lnkd.in/eeyVgrp View in LinkedIn

TIME CORRIDOR. "Such a space-time cloak would open up a temporary corridor through which energy, information and matter could be manipulated or transported undetected." https://lnkd.in/epsXTGi View in LinkedIn

TRANSPORTER. "If you had someone moving along the corridor, it would appear to a distant observer as if they had relocated instantaneously, creating the illusion of a Star-Trek transporter. So, theoretically, this person might be able to do something and you wouldn’t notice!” https://lnkd.in/epsXTGi View in LinkedIn

SPACE-TIME DUALITY. "Using time-lenses based on electro-optic phase modulators, a series of temporal gaps were created to hide events from a receiver. The fundamental theory of these two kinds of cloaks is space-time duality, which represents the mathematical equivalence between the equations describing paraxial diffraction and narrowband dispersion." https://lnkd.in/eztPSPd View in LinkedIn

59 PICOSECOND CLOAK. "illustrate the temporal cloaking process...Optical signals with and without the temporal gap...By tuning the parameters of the LCFG and phase modulator, a temporal gap with the width of 59 ps is opened." https://lnkd.in/eztPSPd View in LinkedIn

VARIABLE TIME. "There are many physicists who truly believe that time is merely the numerical order of change instead of it being an integral part of the space/time continuum (the 3 dimensions of length, width, and height, with time being a separate entity)." https://lnkd.in/euiFq_x View in LinkedIn

FIRST TIME CLOAK. "The team’s device used a technique called “temporal cloaking,” which can essentially tear small holes in space/time by manipulating a beam of light (photons carry information that can help the event be seen by the human eye) with more light using laser pulsars — cancelling light waves out, ultimately cloaking an event from sight as if it never occurred." 2011, Fridma at Cornell, 50 trillionth of a second. https://lnkd.in/euiFq_x View in LinkedIn

50 PICOSECONDS. "The gap achieved by Fridman and his colleagues was extremely small—just 50 picoseconds, or 50 trillionths of a second, in duration. The researchers note that it is possible to extend the gap somewhat, but that scattering and dispersion effects limit the scope of the temporal cloak to a few nanoseconds." https://lnkd.in/e-T4EeU View in LinkedIn