International Intellectual Group, Inc.

A world leader in modeling of the diffraction gratings efficiency for spectroscopy, astronomy, telecommunications, photolithography, and nanotechnology

About us

Our company has a wealth of experience in diffraction efficiency modeling of various types of relief and phase gratings. The most important outcome of our 30 years’ work was the advent of PCGrate®, a modeling tool for analysis and optimization of the absolute diffraction gratings efficiency by an accurate boundary integral equation method. The development of such sophisticated software became possible as a result of the multidisciplinary collaboration between many experts in the domains of theoretical physics, applied mathematics, and computer science.

Our Customers, among Others

If you are interested in becoming our customer,
please feel free to write us.

Our contacts:

[email protected]


Feel free to write us:


I.I.G. Inc. has a few distributors worldwide:

In China:

Wuhan Asdoptics Science And Technology Co., Ltd.
Optical ValleyTimes Square, 111 Guanshan Avenue,
Donghu New Technology Development Zone,
Wuhan, Hubei 430000, China

E-mail: [email protected]

In India:

Holographic Company
Jhawar Kunj, Kotri Goverdhanpura,
Kota, Rajasthan 324007,

E-mail: [email protected]

Address in the USA:
66 Villa Nova St., Staten Island,
N.Y. 10314-6032, U.S.A.

E-mail: [email protected]