Yes—lighting through a translucent surface can help. A common solution is a photo table or translucent plexiglass/acrylic surface with a light placed underneath or behind it. That lets you raise the background to off-white or pure white while keeping the product lit separately from the sides/top.

The key is balance: if the light under the surface is too strong, it will blow out the edges or underside of the product; if it’s too weak, the background stays gray and shadows remain. Keep your main lights even and consistent, then adjust the under-table/back light until the background goes white without washing out the subject.

Also, some shadow is usually desirable in product photography because it helps show shape, texture, and depth. Truly shadowless images can make products look flat or artificial.

So: an illuminated bottom can work, but the real improvement is using a translucent shooting surface and independently controlling background light and subject light. A dedicated photo table/light table setup is a proven approach for this.