In the paper, the results of experimental investigations on the differences of wool structure of healthy mice and mice with malignant tumor(s) are represented. It is shown that destruction of wool structure happens during pathology development. Quantity o
在氟化镁掺镍的晶格中发射红外光子,并产生振荡,称为声子。这种工作物质产生激射作用的波长,部分取决于Ni离子附近晶格的振动,部分取决于离子的电子态。在以往的光激射器中,发射光的波长则取决于电子跃迁。这一发现是贝耳电话实验所的约翰逊(L. F. Johnson)、迪兹(R. E. Dietz)和古根海蒙(H. J. Guggenheim)报导的。由于产生了声子,部分的激发能量被转化为振动能量。
Laser-diode pumped Q-switched ytterbium-doped fiber laser is studied experimentally by controlling the switching time of acousto-optic modulator (AOM). The characteristics of Q-switched pulses with different rise time of AOM regulated by the laser beam si
Retrieving snow surface reflectance is difficult in optical remote sensing. Hence, this letter evaluates five surface reflectance models, including the Ross-Li, Roujean, Walthall, modified Rahman and Staylor models, in terms of their capacities to capture
Realization of efficient yellow-light-emitting diodes (LEDs) has always been a challenge in solid-state lighting. Great effort has been made, but only slight advancements have occurred in the past few decades. After comprehensive work on InGaN-based yello
Metal halide perovskites have aroused tremendous interest in optoelectronics due to their attractive properties, encouraging the development of high-performance devices for emerging application domains such as wearable electronics and the Internet of Thin