TY - JOUR
T1 - Infra-red radiation focusators
AU - Golub, M. A.
AU - Sisakyan, I. N.
AU - Soifer, V. A.
PY - 1991
Y1 - 1991
N2 - This paper presents the results of investigations in the field of diffractive or 'binary' computer-generated optics for the infra-red region of the spectrum. The problem of a CO2-laser beam focusing into a complicated focal domain is considered in detail. Special ray-tracing methods are elaborated to calculate the new analytic functions of diffractive optical elements, called focusators. The development of IR focusators into a ring, uniform planar spots, segments of a straight line, and other focal domains for the CO2 lasers powered from several watts up to 3 kW is reported. Reflective-type focusators are manufactured by a specific microrelief technology that has some features in common with normal microelectronic technology. Experimental results for focused-beam interaction with rubber, wood, fabric, and plastics are presented for the case of a 30-W laser. Effective laser heat-hardening of steel is achieved by 3-kW CO2 laser by means of a computer-generated reflective focusator.
AB - This paper presents the results of investigations in the field of diffractive or 'binary' computer-generated optics for the infra-red region of the spectrum. The problem of a CO2-laser beam focusing into a complicated focal domain is considered in detail. Special ray-tracing methods are elaborated to calculate the new analytic functions of diffractive optical elements, called focusators. The development of IR focusators into a ring, uniform planar spots, segments of a straight line, and other focal domains for the CO2 lasers powered from several watts up to 3 kW is reported. Reflective-type focusators are manufactured by a specific microrelief technology that has some features in common with normal microelectronic technology. Experimental results for focused-beam interaction with rubber, wood, fabric, and plastics are presented for the case of a 30-W laser. Effective laser heat-hardening of steel is achieved by 3-kW CO2 laser by means of a computer-generated reflective focusator.
UR - http://www.scopus.com/inward/record.url?scp=0026377949&partnerID=8YFLogxK
U2 - 10.1016/0143-8166(91)90017-N
DO - 10.1016/0143-8166(91)90017-N
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AN - SCOPUS:0026377949
VL - 15
SP - 297
EP - 309
JO - Optics and Lasers in Engineering
JF - Optics and Lasers in Engineering
SN - 0143-8166
IS - 5
ER -