We analyzed the effects of an external shock on a collision problem in a solid immersion lens (SIL) based near-field
recording (NFR) through a shock response analysis and proposed a possible solution to this problem with adopting a
protector and safety mode. With this proposed method the collision between SIL and media can be avoided. We showed
possible solution for contamination problem in SIL based NFR through a numerical air flow analysis. We also
introduced possible solid immersion lens designs to increase the fabrication and assembly tolerances of an optical head
with replicated lens. Potentially, these research results could advance NFR technology for commercial product.