Implications of Directed Energy for SETI


The implications of recent advances in directed energy on searches for extraterrestrial intelligence (since we have given up on finding any here on Earth) are profound. We will explore the basic signal and noise properties of systems (basically a link margin calculation) and be able to show that it is already possible for us to both send and receive directed energy signals across the entire horizon (visible universe). This allow us to go vastly beyond the normal discourse of looking locally for sources of signals and search at extra galactic distances for extremely narrow bandwidth signals that may be present from civilizations as advanced or more so than ourselves. This has profound implications for SETI given the likely number of planets that are now predicted from the recent Kepler and other surveys, assuming that advanced civilizations even need to be on planets and that they have any desire to communicate with others in regions of the electromagnetic spectrum we are able to access.

Some of this is discussed in:

“The Search for Directed Intelligence”, Lubin 2016, REACH Elsevier The Search for Directed Intelligence

REACH – Reviews in Human Space Exploration – Vol 1, 20-45, March 2016

SPIE – Optics and Photonic – San Diego – August 2016

Lubin et al. “Implications of Directed Energy for SETI”: Paper

Directed Energy for Relativistic Propulsion and Interstellar Communications – from Aug 2013 ICARUS Starship Congress

submitted Jan 2014- Journal of the British Interplanetary Society (pub JBIS 2015 68, 172) – Lubin et al 2015 DE-STAR-JBIS – v13

As published: JBIS – as published – black-white – Lubin

List of recent Directed Energy related publications: DE_STAR_and_related_References

Witches Broom by Ken Crawford 5 fitler image

SETI Institute lecture– February 2014

SETI Big Picture Science Radio Show Interview: Space For Everyone: Philip Lubin by Niederhoff

Interview at SETI Institute with Seth Shostak and Philip Lubin

Lecture – Presentation: Directed Energy for Planetary Defense and Implication for Searches for Advanced Civilizations