Page 86

銚蹔新茖野�科學�役事䝜簿 2014-2015

ć­‹ăź­ç˝œăŁ?ćś¸č˝ ĺ ’â´•ăśŠ

Extension-coil Molecules from Small to Large ꤍä&#x;ƒćĄŞé—?ăš…ă °

ćœŹä˝œĺ“ é€?é Žĺ ?光饯垎é?Ąč§€ĺŻ&#x;ćœ‰ćŠ&#x;ć??ć–™éš¨ćşŤĺşŚčŽŠĺŒ– çš„ç›¸čŽŠé Žç¨‹ă€‚ĺœ¨éŤ˜ćşŤć™‚ďźŒćœƒćœ‰ĺ˝ˆç? čˆŹçš„ĺ°?äşŽéťžĺœ¨ 靑暗中澎ç?žďźŒéť‘色的ĺ?€ĺ&#x;&#x;ç‚şćś˛ć…‹ďźŒĺ˝ˆç? čˆŹçš„ĺ°?于 éťžç‚şćś˛ć™śç›¸ć…‹ă€‚ç”ąć–źćś˛ć™śĺ…ˇćœ‰é›™ćŠ˜ĺ°„çš„ĺ…‰ĺ­¸ć•ˆ ć‡‰ďźŒä˝żĺž—ĺ…Ľĺ°„ĺ…‰çš„é›ťĺ ´ć–šĺ?‘ĺ?Šĺ‚łć’­é€&#x;庌癟ç”&#x;攚 čŽŠďźŒĺ˝˘ćˆ?ç‚Ťéş—çš„ĺ…‰ĺ­¸ć•ˆćžœďźŒč€ŒćŻ?一于非內的ä¸?čŚ? ĺ‰‡ćš—ç´‹éĄŻç¤şĺ‡şćś˛ć™śĺˆ†ĺ­?ĺ˝źć­¤é–“çš„ćŽ’ĺˆ—ä¸?ĺ?Œă€‚ćŒ çşŒ ĺœ°ä¸‹é™?ćœ‰ćŠ&#x;ć??ć–™çš„ćşŤĺşŚďźŒćœ‰ĺ°‘éƒ¨ĺˆ†ćˇťĺŠ ĺœ¨ćś˛ć™ść?? ć–™ä¸­çš„čžşć—‹ĺˆ†ĺ­?開始產ç”&#x;ĺ†?çľ?ć™śďźŒç”ąĺ°?于非ĺ?‘外 坜䟸形ćˆ?一羲羲的光芒é‡?葉。

äŞŽé ­é“œĺƒ‡5FDIOJDBM&YQMBOBUJPO

㠚♧âŚ?ĺ‰¤ĺ Ľĺ‹žäż˛ă–ˆâ™śă šĺ˝ąä?žâ™´ď˜šéˇ´éş•ĺ§ťâ?œâ¨‹âŻ•ęł?ä—?ę–?佞ăŁ?  ⌔䖕 éšŽé ¤éŒšăťŒď˜šâš›ćŹ˝ă‹˛ćťšäž¸âĄ™ćšąĺ Ľî™ˇ0MZNQVT&äŹ?äź˘ä•§âŤšď˜ˇĺ‰¤ĺ Ľ

ĺ‹žäż˛âšĽĺ‰¤ĺš‘â¸ˆâ°¨âŻ•ăˇ¸ĺ´žäš?ćś¸č˝ ĺ ’äš?â´•ăśŠď˜šăź&#x;â°?ç˝?ă–łâş›ĺš‹ă –ä–•ď˜šâľ„ćŹ˝

ĺŹ ç¨Łć¤?é&#x;?才Ⰵâ°?晚梯槾⛓ę&#x;Śî™ˇâ™łâ™´ć˘Żć§ľćś¸ę&#x;Śé¨…ć?€ ÄžNî™¸ď˜šéˇ´éş•ęł?

ä—?ę–?♳朸乞役䎂č?ŠéšŽé ¤äąžĺ˝ąď˜ˇăź&#x;ĺ‹žäż˛âźŽĺ˝ąâľŒĺˇŠä˘€ä–•ď˜šâą„çŽŁä˘Šă–’ęŁŽĺ˝ąď˜š äŹ?䟢♜㠚役ä?žĺ„˜ď˜ˇĺ‹žäż˛ćś¸âŻ•ăˇ¸ćšśäš?ĺ‰ščŽ…ĺ‹žäż˛ä¨žč´–ćś¸ćšąä˘€ĺ‰¤ęĄ ď˜šä¨žâ&#x;ƒ

〳â&#x;ƒéˇ´éş•âŻ•ăˇ¸ćšśäš?éŒšăťŒĺ‹žäż˛ćś¸ćšąéšśéş•çŽ‘ď˜ˇâ™˛ä“šă•ŹéżŞçŤ¤éş•â?Žä?žî™ˇ ⿝㟊卲 朸ä—?é”…ď˜ˇ 䎃  剢  ĺ‚ˆäź˘ĺ€´é¸Ťć­ŒăŁ?㡸⯕ꨜ㡸猺 ĺˇŠĺ…Şăťœë€żăš”ď˜ˇ

The same organic material under various temperatures was recorded

In this work, a polarizing microscope was used to look at the changes in organic material at varying temperatures. At high temperature, marble-like light specks float in the darkness. The black region represents the liquid state while the light specks represent the liquid crystal phase. As the liquid crystal phase possesses the optical effect of double refraction, it changes the electric field direction of the incoming light and the speed of distribution, creating a dazzling optical effect. The non-formative dark fringes within the specks reveal the juxtaposition of liquid crystal molecules. As the temperature of the organic material continues to drop, a small number of coiled molecules within the liquid crystal material start to recrystallize, transforming from bright specks into shiny rays that resemble needle-like leaves.

84

with a DSLR (Olympus E-620) at 100 x magnification under polarizing optical microscope. Optically active coiled molecules were added to the material and homogenously mixed. Using capillary action, the mixture was placed between two glass pieces (10Οm apart). The temperature was then adjusted using the temperature-controlled system on the microscope. The material was first heated to a liquid state and the temperature was gradually reduced; allowing for recording of the optical characteristics of the material at different temperatures. The material’s optical characteristics were related to the state of the material, so that the interchange of the material can be observed through the change in its optical property. Three photographs underwent adjustment for light intensity (-30) and contrast (+50). The images were taken in the Liquid Crystal Materials Research Lab of the Department of Photonics, Feng Chia University on December 3, 2010.

Profile for nmns

Amazing New Visions: Science Images 2014-2015  

驚豔.新視野:科學攝影事件簿2014-2015。Editor: Yang, Lin. Publishing Institute: National Museum of Natural Science, R.O.C. . 楊翎主編。國立自然科學博物館發行。中華民國。

Amazing New Visions: Science Images 2014-2015  

驚豔.新視野:科學攝影事件簿2014-2015。Editor: Yang, Lin. Publishing Institute: National Museum of Natural Science, R.O.C. . 楊翎主編。國立自然科學博物館發行。中華民國。

Profile for nmns
Advertisement