Generate a highly accurate physics laboratory performing the double-slit light experiment. Include: a monochromatic laser source emitting a coherent beam, a barrier plate with two parallel slits of correct proportions, a detection screen placed at the proper distance, and the resulting interference pattern displayed as alternating bright and dark fringes. All optical components (laser, lenses, mounts, optical rails) must be placed and aligned realistically. Include labels for each element: ‘Laser Source’, ‘Double Slit’, ‘Interference Pattern’, ‘Detection Screen’. Lighting should be low so the interference fringes are clearly visible.