An optical pickup apparatus includes a light generating unit to generate a light to record or reproduce information, an objective lens to focus the light generated from the light generating unit onto a disk, and a multi-sectional polarizer disposed on a light path between the light generating unit and the objective lens and divided into a plurality of sectors having their individual optical axes. In this method, samples of the analyte are prepared and stirred in n-octanol and water at a rate sufficiently low to avoid emulsions over time at a constant temperature. The invention includes a unique microcode architecture for supporting highly pipelined long integer operations without condition checking and branching overhead and an optimized data-independent pipelined scheduling for major public key operations like, RSA, DSA, DH, and the like.