Science Fiction Dictionary
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

 

Dual-Laser Sensing Like Star Trek Long Range Sensors

A dual-laser sensing system is under development at the Department of Energy's Oak Ridge National Laboratory. The device uses a quantum cascade laser to "pump," or strike, a target, and another laser to monitor the selected target's response as a result of temperature-induced changes.


(Pump-probe photothermal spectroscopy using quantum cascade lasers)

"With two lasers, one serves as the pump and the other is the probe," said Passian, a member of ORNL's Measurement Science and Systems Engineering Division. "The novel aspect to our approach is that the second laser extracts information and allows us to do this without resorting to a weak return signal.

"The use of a second laser provides a robust and stable readout approach independent of the pump laser settings." While this approach is similar to radar and lidar sensing techniques in that it uses a return signal to carry information of the molecules to be detected, it differs in a number of ways.

"First is the use of photothermal spectroscopy configuration where the pump and probe beams are nearly parallel," Passian said. "We use probe beam reflectometry as the return signal in standoff applications, thereby minimizing the need for wavelength-dependent expensive infrared components such as cameras, telescopes and detectors."

Fans of Star Trek: TOS have been eagerly awaiting long range sensor scans that can detect the components of an atmosphere without needing to send crew members in red shirts to gather samples.


(Spock long range sensor scan)

Via Science Daily; thanks to Winchell Chung of Project Rho for the tip on this story.

Scroll down for more stories in the same category. (Story submitted 3/24/2012)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 2 )

Related News Stories - (" Space Tech ")

First Ever Proof Of Water On Asteroids
'Yes, strangely enough there was still sufficient water beneath the surface of Vesta.' - Raymond Z. Gallun, 1951.

Gigantic Space Sunshade Would Fight Global Warming
'...the light of the sun had been polarized by two crossed fields so that no radiation could pass.' - Arthur C. Clarke, 1953.

Untethered Spacewalk's 50th Anniversary
'But that space walk of mine wasn't so very amazing.' - Dom Passante, 1939.

ESA Designs Huge Inflatable Moonbase
'It was like being inside a balloon; indeed, that was exactly where he was.' - Arthur C. Clarke, 1961.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Current News

Prophetic Offers Lucid Dreaming Halo With Morpheus-1 AI
''Leads trail away from insertion points on her face and wrist... to a lucid dreamer...'

More Like A Tumblebug Than A Motorcycle
'It is about the size and shape of a kitchen stool, gyro-stabilized on a single wheel...'

Tesla Camera-Only Vision Predicted In 1930's SF
'By its means, the machine can see.'

First Ever Proof Of Water On Asteroids
'Yes, strangely enough there was still sufficient water beneath the surface of Vesta.'

Aptera Solar EV More Stylish Than Heinlein Steel Tortoise
'When confronted by hills, or rough terrain, it did not stop, but simply slowed until the task demanded equaled its steady power output.'

Gigantic Space Sunshade Would Fight Global Warming
'...the light of the sun had been polarized by two crossed fields so that no radiation could pass.'

Untethered Spacewalk's 50th Anniversary
'But that space walk of mine wasn't so very amazing.'

ESA Designs Huge Inflatable Moonbase
'It was like being inside a balloon; indeed, that was exactly where he was.'

AlphaGarden Robot Cares For Gardens Better Than Humans
'...a simple clock-set servok with pipe and hose arms.'

Let's Make Slaver Sunflowers! Engineering Plants To Reflect Light
'The mirror-blossom was a terrible weapon.'

TeslaBot Uber Driver (2024) And The Automatic Motorist (1911)
'Robots have worse problems than anybody'

DiffuseBot Uses Generative AI To Invent New Soft Robots
'It embodies several small-scale multiple stampers, apparently for dealing with sheet metal.'

Philips Smart Palm Recognition Smart Deadbolt
'A palm lock must be keyed to one individual's hand shape...'

BMind Smart Mirror from Baracoda
Mirror, mirror, on the wall, who has the greatest wellness of all?

Ballie Your AI Robot Companion From Samsung
Projects your content anywhere you like.

Holobox? Who Doesn't Want A Home Hologram?
'...there appeared standing upon the disk, the image of a man...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.