Tuneable optical lenses from diamond thin films

被引：46

作者：

Kriele, A. ^{[1
]}

Williams, O. A. ^{[1
]}

Wolfer, M. ^{[1
]}

Brink, D. ^{[1
]}

Mueller-Sebert, W. ^{[1
]}

Nebel, C. E. ^{[1
]}

机构：

[1] Fraunhofer Inst Appl Solid State Phys, D-79108 Freiburg, Germany

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 03期

关键词：

chemical vapour deposition; diamond; lenses; membranes; optical films; optical focusing; optical tuning; surface morphology; Young's modulus;

D O I：

10.1063/1.3183534

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanocrystalline diamond (NCD) membranes of 150 nm thickness and diameters in the millimeter range grown by microwave-assisted chemical-vapor deposition were bulged to investigate their mechanical properties and their use as tuneable optical lenses. The NCD films were grown at different CH4/H-2 gas mixtures to vary the sp(2)/sp(3) ratio and thereby to tune their mechanical, optical, and surface morphology properties. By applying gas over pressure the membrane forms a lens shaped geometry. From deflection data we calculated Young's moduli which decrease with increasing CH4/H-2 ratio from 1160 GPa at 0.5% to 900 GPa at 7%. Optical lens applications show a variation in the focal point from infinity to 3.5 mm. The data indicate that NCD is a promising material for tuneable optical lenses applications.

引用

页数：3

共 15 条

[1]

[Anonymous], EMIS DATAREVIEWS SER

[2] Tunable liquid-filled microlens array integrated with microfluidic network [J].

Chronis, N ;

Liu, GL ;

Jeong, KH ;

Lee, LP .

OPTICS EXPRESS, 2003, 11 (19) :2370-2378

[3]

Friese C, 2007, IEEJ T ELECTR ELECTR, V2, P232, DOI [10.1002/tee.20138, 10.1002/iee.20138]

[4]

FUUMLNER M, 1998, APPL PHYS LETT, V72, P1149, DOI DOI 10.1063/1.120997

[5] 4 W single-transverse mode VECSEL utilising intra-cavity diamond heat spreader [J].

Harkonen, A. ;

Suomalainen, S. ;

Saarinen, E. ;

Orsila, L. ;

Koskinen, R. ;

Okhotnikov, O. ;

Calvez, S. ;

Dawson, M. .

ELECTRONICS LETTERS, 2006, 42 (12) :693-694

[6] Direct observation of electron emission site on boron-doped polycrystalline diamond thin films using an ultra-high-vacuum scanning tunneling microscope [J].

Kim, YD ;

Choi, W ;

Wakimoto, H ;

Usami, S ;

Tomokage, H ;

Ando, T .

APPLIED PHYSICS LETTERS, 1999, 75 (20) :3219-3221

[7]

Pan J. Y., 1990, P IEEE SOL STAT SENS, P70

[8] Effect of diamondlike carbon coating and surface topography on the performance of metal evaporated magnetic tapes [J].

Patton, ST ;

Bhushan, B .

IEEE TRANSACTIONS ON MAGNETICS, 1998, 34 (02) :575-587

[9] Protective diamond-like carbon coatings for future optical storage disks [J].

Piazza, F ;

Grambole, D ;

Schneider, D ;

Casiraghi, C ;

Ferrari, AC ;

Robertson, J .

[10]

Spear K.E., 1994, Synthetic diamond, emerging CVD science and technology

← 1 2 →