127 research outputs found
Single molecule detection with graphene and other two-dimensional materials: nanopores and beyond
Supramolecular & Biomaterials Chemistr
Frequency stabilized three mode HeNe laser using nonlinear optical phenomena
Accurate and traceable length metrology is employed by laser frequency stabilization. This paper describes a laser frequency stabilzation technique as a secondary standard with a fractional frequency stability of 5.2Ă—10?10 with 2 mW of power, suitable for practical applications. The feedback stabilization is driven by an intrinsic mixed mode signal, caused by nonlinear optical phenomena with adjacent modes. The mixed mode signals are described theoretically and experimentally verified.Precision and Microsystems EngineeringMechanical, Maritime and Materials Engineerin
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