共查询到20条相似文献,搜索用时 62 毫秒
1.
本文介绍一种新颖的氮氖激光针刺技术,它不仅可用于穴位表面或体表局部的激光照射治疗,而且在需要时,通过光导纤维和特制的激光专用针,直接将激光刺入穴位或体内合适的深部,从而达到临床应用激光导入深浅的要求,提高了治疗效果,为激光针灸治疗获得了一个新的发展。动物试验和对细菌变异影响的实验证明这是一种安全面卫生的治疗方法。 相似文献
2.
应用8mWHe-Ne激光照射未断奶及断奶羔羊内眼角和第三眼睑,每次45秒,能量密度为5.02焦耳/厘米^2。连续照射10天后称重,激光照射组与对照组增重效果无明显差异,但在停照后15天称重刺激光照射组体重较对照组明显增高,具有差异极显著的增重效果。 相似文献
3.
4.
氦氖激光治疗婴幼儿腹泻的临床观察 总被引:2,自引:0,他引:2
本文临床观察激光穴位照射治疗婴幼儿腹泻,并与针炙治疗对照,发现两种方法在调节胃肠道及免疫功能方面具体同样的疗效,说明婴幼儿腹泻采用激光穴位照射可代替传统的针炙治疗。且见效快,痊愈率高,适宜推广。 相似文献
5.
6.
乳腺炎为外科常见病,临床上可采取多种方法给予治疗,但常波及母乳的分泌和质量;给婴儿喂养带来一定影响。我院自83年以来分别采用He-Ne激光、CO2激光照射的方法治疗乳腺炎取得一定效果。现将其中资料详细的124例患者治疗情况报告如下: 相似文献
7.
氨激光渡长337nm,属紫外激光,脉冲输出。过去曾报导连续输出的UVA加8-MOP(PUVA)能治疗多种皮肤病。本文研究目的在于观察氮激光照射及激光加8-MOP照射对霉菌生长的影响并报导临床应用的尝试。 相似文献
8.
激光技术在医学上的应用近几年来已广泛深入到了各个领域。激光穴位照射镇痛、麻醉的方法,国内已有一些报导.效果也比较满意。我组应用3-5mW低功率氦-氖激光穴位照射麻酵进行外,妇科六个病种,共141例手术。优良率62.4%,成功率88.3%,效果优良。现将临床观察资料简述如下: 相似文献
9.
He-Ne激光穴位照射对大鼠的镇痛作用及对不同脑区内脑啡肽含量的影响 总被引:2,自引:0,他引:2
激光穴位照射具有无痛、无菌等优点,已广泛应用于临床治疗多种疾病,取得较好效果。近年来一些研究证明,氦-氖(He-Ne)激光穴位照射人体或动物后,皆可产生明显的镇痛作用,并且在激光穴位照射所产生的镇痛作用下又可进行手术。还有实验报道,激光穴位照射所产生的镇痛作用可被吗啡颉抗剂——丙烯吗啡所对抗。 相似文献
10.
CO2激光对不少皮肤病有较好的效果,扩束照射具明显的止痒作用,作者用CO2激光治疗浅部霉菌病,并对某些霉菌的作用进行了初步实验性观察。本文分成实验部份和临床治疗部份,实验性部份包括材料和方法的介绍及实验结果报导,临床治疗部份包括治疗方法及治疗结果。本实验证明二氧化碳激光对石膏样癣菌、红色癣菌、大脑状癣菌有一时的抑制作用, 相似文献
11.
12.
High-power InAlGaAs/GaAs and AlGaAs/GaAs semiconductor laser arrays emitting at 808 nm 总被引:5,自引:0,他引:5
Yi Qu Shu Yuan Chong Yang Liu Baoxue Bo Guojun Liu Huilin Jiang 《Photonics Technology Letters, IEEE》2004,16(2):389-391
Molecular beam epitaxy (MBE) growth, device fabrication, and reliable operation of high-power InAlGaAs/GaAs and GaAlAs/GaAs laser arrays are described. Both InAlGaAs/GaAs and AlGaAs/GaAs laser arrays reached maximum continuous wave output powers of 40 W at room temperature. The external quantum efficiency was 50% and 45% for the InAlGaAs/GaAs and AlGaAs/GaAs laser arrays, respectively. Threshold current density for InAlGaAs/GaAs and AlGaAs/GaAs lasers was 303 A/cm/sup 2/ and 379 A/cm/sup 2/, respectively. While the current of AlGaAs laser arrays went up significantly after 1000 h of operation at a constant power of 40 W, InAlGaAs laser arrays had an increase in the injection current of less than 4% after 3000 h at 40 W. 相似文献
13.
The thermochemical etching behavior of GaAs/AlGaAs multilayer structure during laser beam scanning has been studied. The etch
rate changes between GaAs and AlGaAs epilayers as the etching process proceeds through the layered sample. The phenomenon
can be explained by the difference of thermal parameters of the heterojunction interface. The local temperature rise from
laser irradiation has been calculated to investigate etching characteristics for GaAs and AlGaAs. It is concluded that the
good thermal confinement at GaAs/AlGaAs interface produces the wider etch width of GaAs layer than that of AlGaAs layer in
GaAs/AlGaAs multilayer. The maximum etch rate of the GaAs/AlGaAs multilayer was 32.5 μm/sec and the maximum etched width ratio
of GaAs to AlGaAs was 1.7. 相似文献
14.
15.
16.
17.
18.
Pedrotti K.D. Beccue S. Haber W.J. Brar B.P. Robinson G. Kilcoyne M.K. 《Lightwave Technology, Journal of》1990,8(9):1334-1342
An optical-fiber crossbar switch has been constructed using fully integrated GaAs optoelectronic receivers, custom monolithic GaAs laser drivers, and an electrical 32×32 silicon crossbar switch. 470 Mb/s operation has been achieved with a bit error rate of less than 10-12. The approach uses a monolithic GaAs optoelectronic integrated receiver to convert optical signals into electrical signals that are fed into an Si 32×32 electronic crossbar switch. The switch outputs are used to drive laser transmitters consisting of a custom monolithic GaAs IC laser driver and a 0.85 μm GaAs/AlGaAs laser. The system could be reconfigured in 1 μm, limited by the control logic, with the switch chip capable of reconfiguration in 35 ns. No errors are induced by reconfiguration 相似文献
19.
A highly strained GaAs/GaAs/sub 0.64/Sb/sub 0.36/ single quantum well laser has been grown on GaAs (100) substrate by using solid source molecular beam epitaxy. The uncoated broad-area laser demonstrates 1.292 /spl mu/m pulsed operation with a low threshold current density of 300 A/cm/sup 2/. The spontaneous emission of the laser was also studied. The result reveals that the Auger recombination component dominates the threshold current at high temperature. 相似文献
20.
532 nm连续激光对砷化镓材料损伤的研究 总被引:1,自引:0,他引:1
利用532 nm连续激光对掺Si的n型砷化镓材料进行作用,材料的晶轴方向为〈100〉偏〈111A〉方向15°.实验观察到,连续激光与材料相互作用过程中,材料作用表面的反射光在观察屏上形成环状结构,认为是由夫琅和费衍射产生的,并首次提出将衍射作为探测材料损伤的方法.实验测得砷化镓的阈值损伤功率密度为2.56×105W/cm2.利用温度场的热传导方程计算获得材料的损伤阈值时间与入射光功率密度的关系曲线,并与实验曲线进行了比较. 相似文献