A method of operating a photon engine to produce linear momentum, the method comprising: positioning a primary back face of a primary prism comprising a first transparent optical medium having a first index of refraction adjacent to and spaced apart from a secondary back face of a secondary prism comprising a second transparent optical medium having a second index of refraction, the secondary prism comprising multiple lateral faces; providing a containment chamber comprising the secondary prism and reflective surfaces; producing a processed light beam by directing a light beam into a light expander/contractor device communicating with the primary prism, the light expander/contractor device comprising facets for reflecting the light by 90 degrees two times to expand the diameter of the light which is rotating in the primary prism in one direction and reflecting the light by 90 degrees two times to contract the diameter of the light which is rotating in the primary prism in the direction opposite to the one direction and a mirror for reversing the direction of the expanded light when the diameter of the expanded light is expanded to the maximum diameter from the one direction to the opposite direction; compressing the secondary back face of the secondary prism relative to the primary back face of the primary prism, forming a transparent interface therebetween; communicating the processed light beam through the transparent interface from the primary prism into the secondary prism, splitting the processed light beam multiple times into multiple processed light beams comprising a higher power output than the light beam; decompressing the secondary back face of the secondary prism relative to the primary back face of the primary prism after communicating the multiple processed light beams into the containment chamber, thereby minimizing communication of the multiple processed light beams from the containment chamber; repeatedly propagating the multiple processed light beams in the containment chamber along a predetermined reflective light path extending from the secondary back face at a first predetermined angle, through the multiple lateral faces at a generally normal angle to the reflective surfaces, and repeatedly back to the secondary back face at a second predetermined angle effective to reflect the multiple processed light beams from the secondary back face at the first predetermined angle; the multiple processed light beams thereby repeatedly imparting linear momentum to the reflective surfaces communicating with an energy system. positioning a primary back face of a primary prism comprising a first transparent optical medium having a first index of refraction adjacent to and spaced apart from a secondary back face of a secondary prism comprising a second transparent optical medium having a second index of refraction, the secondary prism comprising multiple lateral faces; providing a containment chamber comprising the secondary prism and reflective surfaces; producing a processed light beam by directing a light beam into a light expander/contractor device communicating with the primary prism, the light expander/contractor device comprising facets for reflecting the light by 90 degrees two times to expand the diameter of the light which is rotating in the primary prism in one direction and reflecting the light by 90 degrees two times to contract the diameter of the light which is rotating in the primary prism in the direction opposite to the one direction and a mirror for reversing the direction of the expanded light when the diameter of the expanded light is expanded to the maximum diameter from the one direction to the opposite direction; compressing the secondary back face of the secondary prism relative to the primary back face of the primary prism, forming a transparent interface therebetween; communicating the processed light beam through the transparent interface from the primary prism into the secondary prism, splitting the processed light beam multiple times into multiple processed light beams comprising a higher power output than the light beam; decompressing the secondary back face of the secondary prism relative to the primary back face of the primary prism after communicating the multiple processed light beams into the containment chamber, thereby minimizing communication of the multiple processed light beams from the containment chamber; repeatedly propagating the multiple processed light beams in the containment chamber along a predetermined reflective light path extending from the secondary back face at a first predetermined angle, through the multiple lateral faces at a generally normal angle to the reflective surfaces, and repeatedly back to the secondary back face at a second predetermined angle effective to reflect the multiple processed light beams from the secondary back face at the first predetermined angle; the multiple processed light beams thereby repeatedly imparting linear momentum to the reflective surfaces communicating with an energy system.