The work studies under different physical conditions the carrier contribution to elastic constants in heavily doped optoelectronic materials. In the presence of intense photon field the authors apply the Heisenberg Uncertainty Principle to formulate electron statistics.

Many open research problems are discussed and numerous potential applications as quantum sensors and quantum cascade lasers are presented.

Engg Kamakhya Prasad Ghatak and Madhuchhanda Mitra, Kolkata, India.