A YARAI   K SAKAMOTO   T NAKANISHI   
JOURNAL DE PHYSIQUE IV 4(C7) 67-70 1994年7月 [査読有り]
This paper describes a high-fidelity tomographic imaging reconstruction method for photopyroelectric thermal wave detection equipment. The high-fidelity is achieved through a high signal-to-noise ratio detection technique and through a new calcula...
A YARAI   Y FUKUNAGA   K SAKAMOTO   T NAKANISHI   
JOURNAL DE PHYSIQUE IV 4(C7) 79-82 1994年7月 [査読有り]
A new technique has been developed for amplification of the photothermal beam deflection angle for mirage detection. This technique, based an a very simple operating principle, uses a cylindrical reflection mirror. The use of a new amplifier provi...
A YARAI   Y FUKUNAGA   K SAKAMOTO   T NAKANISHI   
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 33(5B) 3251-3254 1994年5月 [査読有り]
A new technique for amplification of photothermal beam deflection angle was developed. This technique. based on a very simple operation principle, uses a cylindrical reflection mirror for a new deflection amplifier. This paper presents experimenta...
A YARAI   K SAKAMOTO   T NAKANISHI   
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 33(5B) 3255-3259 1994年5月 [査読有り]
This paper describes high signal-to-noise ratio and high resolution detection techniques for photopryoelectric thermal wave imaging equipment. A high signal-to-noise ratio technique is mainly achieved by realizing a very low-noise first stage pre-...