Optical beam deflection sensor: design and experiments

Autor(es)

Sakamoto, Joao M. S. ^[1] ; Marques, Renan B. ^[2] ; Kitano, Claudio ^[3] ; Rodrigues, Nicolau A. S. ^[4] ; Riva, Rudimar ^[1]

Afiliação do(s) autor(es)

^[1] Inst Estudos Avancados IEAv, Div Photon, 1 Trevo Cel Av Jose AA do Amarante, BR-12228001 Sao Jose Dos Campos, SP - Brazil

^[2] Univ Fed Sao Paulo, Unifesp, 1201 Av Cesare Mansueto Giulio Lattes, BR-12247014 Sao Jose Dos Campos, SP - Brazil

^[3] Sao Paulo State Univ, UNESP, Sch Nat Sci & Engn, Dept Elect Engn, BR-15385000 Ilha Solteira, SP - Brazil

^[4] ITA, Dept Phys, 50 Praca Marechal Eduardo Gomes, BR-12228900 Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: APPLIED OPTICS; v. 56, n. 28, p. 8005-8013, OCT 1 2017.
• Citações Web of Science: 1

Resumo

In this work, we present a double-pass optical beam deflection sensor and its optical design method. To accomplish that, a mathematical model was proposed and computational simulations were performed, in order to obtain the sensor's characteristic curves and to analyze its behavior as function of design parameters. The mathematical model was validated by comparison with the characteristic curves acquired experimentally. The sensor was employed to detect acoustic pulses generated by a pulsed laser in a sample surface, in order to show its potential for monitoring applications handling high energy input as laser welding or laser ablation. (C) 2017 Optical Society of America (AU)

• Processo FAPESP: 15/08083-8 - LiM - Lasers in Manufacturing
• Beneficiário: João Marcos Salvi Sakamoto
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior