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Photonic Lightsails: Fast and Stable Propulsion for Interstellar Travel

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arxiv 2502.17828 v1 pith:FA5QXDX6 submitted 2025-02-25 astro-ph.IM physics.app-phphysics.optics

classification astro-ph.IMphysics.app-phphysics.optics
keywords lightsaillightsailsphotonicspropulsionrecentspeedstraveladvancements
verification ladder T0 review T1 audit T2 compute T3 formal
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Lightsails are a highly promising spacecraft concept that has attracted interest in recent years due to its potential to travel at near-relativistic speeds. Such speeds, which current conventional crafts cannot reach, offer tantalizing opportunities to probe nearby stellar systems within a human lifetime. Recent advancements in photonics and metamaterials have created novel solutions to challenges in propulsion and stability facing lightsail missions. This review introduces the physical principles underpinning lightsail spacecrafts and discusses how photonics coupled with inverse design substantially enhance lightsail performance compared to plain reflectors. These developments pave the way through a previously inaccessible frontier of space exploration.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Experimental demonstration of corrugated nanolaminate films as reflective light sails

    physics.optics 2025-08 unverdicted novelty 7.0 of 10

    Corrugated alumina-MoS2 nanolaminate films show promising reflectivity, low absorptivity, and low mass for relativistic light sails.

  2. A Space Mission to Earth's Nearest Black Hole: Reality or Science Fiction?

    gr-qc 2026-07 conditional novelty 4.0 of 10

    An interstellar nanocraft mission to a nearby black hole is technologically speculative but potentially feasible within decades and could deliver precision strong-field tests of General Relativity.

  3. Testing Black Holes with Interstellar Missions: II. Flyby Probes

    gr-qc 2026-07 unverdicted novelty 4.0 of 10

    Flyby probes without spacecraft deceleration may still enable black-hole and GR tests beyond what Solar System observatories can achieve for the foreseeable future.

  4. Testing Black Holes with Interstellar Missions: I. Orbiting Probes

    gr-qc 2026-05 unverdicted novelty 4.0 of 10

    Preliminary analysis of orbiting spacecraft around a black hole to test the compact object's nature and General Relativity under the assumption of deceleration capability.

  5. An interstellar mission to the closest black hole?

    gr-qc 2025-09 conditional novelty 3.0 of 10

    If a black hole lies within about 20 light-years, a laser-propelled nanocraft could reach it in roughly a century and test Einstein's theory and event horizons.

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