Thermal diffusivity of Au nanofluid was measured by using a dual beam mode-mismatched thermal lens method. The samples were prepared in various sizes by utilizing the gamma radiation method. In the dual beam mode-mismatched thermal lens, a diode laser (532 nm) was used as an excitation beam and a He-Ne laser with the beam output at 632.8 nm was used as a probe beam. Thermal diffusivity of gold...

Purpose: Low level laser therapy is suggested as a new therapeutic method in diabetic wound healing. This survey aimed to evaluate the effects of low level laser on human fibroblasts cultured in high glucose cultures. Materials and Methods: The human skin fibroblasts were cultured under standard condition. The cells were cultured in high glucose culture medium (15mM/L) for a week and two weeks ...

In this research we measure some of the optical parameters of Barium Titanate crystal (BaTiO3), such as signal beam gain, coupling constant (exponential gain coefficient), change in index refraction and photorefractive sensitivity, which are very significant for optical data storage. In all experiment, two- wave mixing configuration at 632.8 nm (He- Ne laser) were used. Experimental data f...

 The patient was a 10-month-old infant with respiratory distress.During clinical examination and radiography we suspected to congenital laryngeal disorder.The infant was examined by direct laryngoscopy under general anesthesia. After laryngoscopy we diagnosed laryngeal ductal cyst and resected by Co2 laser. After several days the symptoms of the patient improved and he left hospital.

The patient was a 69 year-old man suffering from benign prostatic hypertrophy (BPH), who was candidate for transurethral resection of prostate (TURP) surgery with 980nm diode laser. At the end of the operation, the surgical team noticed abdominal distention. So with suspicion to an acute abdominal problem he underwent an exploratory laparotomy. During the surgery it was found that patient had e...