Acquisition of Tunable Narrow-line Laser for Photonic Band Gap and Disordered Materials Research and Education

这是纽约城市大学皇后学院的主要研究仪器项目和材料研究仪器项目的仪器购置奖。该奖项将允许纽约市立大学皇后学院购买一台相干899-29 Autoscan II单频扫描激光器，用于研究随机和近周期材料和光子器件中的光学传播统计。该仪器将允许主要研究人员将在光谱的微波区域开发的相干技术扩展到可见和红外频率。这将使他们能够利用传输场和强度的统计测量来描述传输的统计特征，并使用强度波动的方差作为声子定位的可靠测试，而不会因微波共振的吸收而产生歧义。胆甾液晶的带边和局域模式将被表征。目的是阐明激光与定位的结合，指导超低激光阈值均质胆甾材料的开发。该仪器将为学生提供微波和光学技术的良好组合，以及接触从事前沿研究的工业研究实验室，为物理学事业做准备。这是纽约城市大学皇后学院的主要研究仪器项目和材料研究仪器项目的仪器购置奖。该奖项将允许纽约市立大学皇后学院购买一台相干899-29 Autoscan II单频扫描激光器，用于研究随机和近周期材料和光子器件中的光学传播统计。该仪器将允许主要研究人员将在光谱的微波区域开发的相干技术扩展到可见和红外频率。该仪器将为学生提供微波和光学技术的良好组合，以及接触从事前沿研究的工业研究实验室，为物理学事业做准备。

This is an instrument acquisition award from the Major Research Instrumentation program and the Instrumentation for Materials Research program to the City University of New York Queens College. The award will allow CUNY Queens College to purchase a Coherent 899-29 Autoscan II single frequency scanning laser for the study of the statistics of optical propagation in random and nearly periodic materials and photonic devices. The instrument will allow the principal investigators to extend the coherent technique developed in the microwave region of the spectrum to visible and infrared frequencies. It will allow them to characterize the statistics of transport using statistical measures of the transmitted fields and intensity, and to use the variance of intensity fluctuations as a sure test of phonon localization free of ambiguities arising from absorption of microwave resonance. Band edge and localized modes in cholesteric liquid crystals will be characterized. The objective is to clarify the conjunction of lasing and localization and guide development of homogeneous cholesteric materials in which ultra-low lasing threshold will be observed. The instrument will provide students preparing for careers in physics with a sound mix of microwave and optical techniques as well as exposure to industrial research laboratories engaged in forefront research. This is an instrument acquisition award from the Major Research Instrumentation program and the Instrumentation for Materials Research program to the City University of New York Queens College. The award will allow CUNY Queens College to purchase a Coherent 899-29 Autoscan II single frequency scanning laser for the study of the statistics of optical propagation in random and nearly periodic materials and photonic devices. The instrument will allow the principal investigators to extend the coherent technique developed in the microwave region of the spectrum to visible and infrared frequencies. The instrument will provide students preparing for careers in physics with a sound mix of microwave and optical techniques as well as exposure to industrial research laboratories engaged in forefront research.